This repository has been archived on 2023-10-09. You can view files and clone it, but cannot push or open issues or pull requests.
Files
blender-archive/source/blender/gpu/intern/gpu_material.c

2078 lines
61 KiB
C
Raw Normal View History

/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
2010-02-12 13:34:04 +00:00
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2006 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Brecht Van Lommel.
*
* ***** END GPL LICENSE BLOCK *****
*/
2011-02-27 20:25:53 +00:00
/** \file blender/gpu/intern/gpu_material.c
* \ingroup gpu
*/
#include <math.h>
#include <string.h>
#include "GL/glew.h"
#include "MEM_guardedalloc.h"
#include "DNA_lamp_types.h"
#include "DNA_material_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "DNA_world_types.h"
#include "BLI_math.h"
#include "BLI_blenlib.h"
#include "BLI_utildefines.h"
#include "BKE_anim.h"
#include "BKE_colortools.h"
#include "BKE_DerivedMesh.h"
#include "BKE_global.h"
#include "BKE_image.h"
#include "BKE_main.h"
#include "BKE_node.h"
#include "BKE_scene.h"
#include "BKE_texture.h"
#include "IMB_imbuf_types.h"
#include "GPU_extensions.h"
#include "GPU_material.h"
#include "gpu_codegen.h"
#include <string.h>
/* Structs */
typedef enum DynMatProperty {
DYN_LAMP_CO = 1,
DYN_LAMP_VEC = 2,
DYN_LAMP_IMAT = 4,
DYN_LAMP_PERSMAT = 8,
} DynMatProperty;
struct GPUMaterial {
Scene *scene;
Material *ma;
/* for creating the material */
ListBase nodes;
GPUNodeLink *outlink;
/* for binding the material */
GPUPass *pass;
GPUVertexAttribs attribs;
int bound;
int builtins;
int alpha, obcolalpha;
int dynproperty;
/* for passing uniforms */
int viewmatloc, invviewmatloc;
int obmatloc, invobmatloc;
2011-12-09 23:26:06 +00:00
int obcolloc, obautobumpscaleloc;
ListBase lamps;
};
struct GPULamp {
Scene *scene;
Object *ob;
Object *par;
Lamp *la;
int type, mode, lay, hide;
float dynenergy, dyncol[3];
float energy, col[3];
float co[3], vec[3];
float dynco[3], dynvec[3];
float obmat[4][4];
float imat[4][4];
float dynimat[4][4];
float spotsi, spotbl, k;
float dyndist, dynatt1, dynatt2;
float dist, att1, att2;
float shadow_color[3];
float bias, d, clipend;
int size;
int falloff_type;
struct CurveMapping *curfalloff;
float winmat[4][4];
float viewmat[4][4];
float persmat[4][4];
float dynpersmat[4][4];
GPUFrameBuffer *fb;
GPUFrameBuffer *blurfb;
GPUTexture *tex;
GPUTexture *depthtex;
GPUTexture *blurtex;
ListBase materials;
};
/* Forward declaration so shade_light_textures() can use this, while still keeping the code somewhat organized */
static void texture_rgb_blend(GPUMaterial *mat, GPUNodeLink *tex, GPUNodeLink *out, GPUNodeLink *fact, GPUNodeLink *facg, int blendtype, GPUNodeLink **in);
/* Functions */
static GPUMaterial *GPU_material_construct_begin(Material *ma)
{
GPUMaterial *material = MEM_callocN(sizeof(GPUMaterial), "GPUMaterial");
material->ma= ma;
return material;
}
static void gpu_material_set_attrib_id(GPUMaterial *material)
{
GPUVertexAttribs *attribs;
GPUShader *shader;
GPUPass *pass;
char name[32];
int a, b;
attribs= &material->attribs;
pass= material->pass;
if (!pass) {
attribs->totlayer = 0;
return;
}
shader= GPU_pass_shader(pass);
if (!shader) {
attribs->totlayer = 0;
return;
}
/* convert from attribute number to the actual id assigned by opengl,
* in case the attrib does not get a valid index back, it was probably
* removed by the glsl compiler by dead code elimination */
for (a=0, b=0; a<attribs->totlayer; a++) {
BLI_snprintf(name, sizeof(name), "att%d", attribs->layer[a].attribid);
attribs->layer[a].glindex = GPU_shader_get_attribute(shader, name);
if (attribs->layer[a].glindex >= 0) {
attribs->layer[b] = attribs->layer[a];
b++;
}
}
attribs->totlayer = b;
}
static int GPU_material_construct_end(GPUMaterial *material)
{
if (material->outlink) {
GPUNodeLink *outlink;
GPUShader *shader;
outlink = material->outlink;
material->pass = GPU_generate_pass(&material->nodes, outlink,
&material->attribs, &material->builtins, material->ma->id.name);
if (!material->pass)
return 0;
gpu_material_set_attrib_id(material);
shader = GPU_pass_shader(material->pass);
if (material->builtins & GPU_VIEW_MATRIX)
material->viewmatloc = GPU_shader_get_uniform(shader, GPU_builtin_name(GPU_VIEW_MATRIX));
if (material->builtins & GPU_INVERSE_VIEW_MATRIX)
material->invviewmatloc = GPU_shader_get_uniform(shader, GPU_builtin_name(GPU_INVERSE_VIEW_MATRIX));
if (material->builtins & GPU_OBJECT_MATRIX)
material->obmatloc = GPU_shader_get_uniform(shader, GPU_builtin_name(GPU_OBJECT_MATRIX));
if (material->builtins & GPU_INVERSE_OBJECT_MATRIX)
material->invobmatloc = GPU_shader_get_uniform(shader, GPU_builtin_name(GPU_INVERSE_OBJECT_MATRIX));
if (material->builtins & GPU_OBCOLOR)
material->obcolloc = GPU_shader_get_uniform(shader, GPU_builtin_name(GPU_OBCOLOR));
if (material->builtins & GPU_AUTO_BUMPSCALE)
2011-12-09 23:26:06 +00:00
material->obautobumpscaleloc = GPU_shader_get_uniform(shader, GPU_builtin_name(GPU_AUTO_BUMPSCALE));
return 1;
}
return 0;
}
void GPU_material_free(Material *ma)
{
LinkData *link;
LinkData *nlink, *mlink, *next;
for (link=ma->gpumaterial.first; link; link=link->next) {
GPUMaterial *material = link->data;
if (material->pass)
GPU_pass_free(material->pass);
for (nlink=material->lamps.first; nlink; nlink=nlink->next) {
GPULamp *lamp = nlink->data;
for (mlink=lamp->materials.first; mlink; mlink=next) {
next = mlink->next;
if (mlink->data == ma)
BLI_freelinkN(&lamp->materials, mlink);
}
}
BLI_freelistN(&material->lamps);
MEM_freeN(material);
}
BLI_freelistN(&ma->gpumaterial);
}
void GPU_material_bind(GPUMaterial *material, int oblay, int viewlay, double time, int mipmap)
{
if (material->pass) {
LinkData *nlink;
GPULamp *lamp;
/* handle layer lamps */
for (nlink=material->lamps.first; nlink; nlink=nlink->next) {
lamp= nlink->data;
if (!lamp->hide && (lamp->lay & viewlay) && (!(lamp->mode & LA_LAYER) || (lamp->lay & oblay))) {
lamp->dynenergy = lamp->energy;
copy_v3_v3(lamp->dyncol, lamp->col);
}
else {
lamp->dynenergy = 0.0f;
lamp->dyncol[0]= lamp->dyncol[1]= lamp->dyncol[2] = 0.0f;
}
}
GPU_pass_bind(material->pass, time, mipmap);
material->bound = 1;
}
}
void GPU_material_bind_uniforms(GPUMaterial *material, float obmat[4][4], float viewmat[4][4], float viewinv[4][4], float obcol[4], float autobumpscale)
{
if (material->pass) {
GPUShader *shader = GPU_pass_shader(material->pass);
LinkData *nlink;
GPULamp *lamp;
float invmat[4][4], col[4];
/* handle builtins */
if (material->builtins & GPU_VIEW_MATRIX) {
GPU_shader_uniform_vector(shader, material->viewmatloc, 16, 1, (float*)viewmat);
}
if (material->builtins & GPU_INVERSE_VIEW_MATRIX) {
GPU_shader_uniform_vector(shader, material->invviewmatloc, 16, 1, (float*)viewinv);
}
if (material->builtins & GPU_OBJECT_MATRIX) {
GPU_shader_uniform_vector(shader, material->obmatloc, 16, 1, (float*)obmat);
}
if (material->builtins & GPU_INVERSE_OBJECT_MATRIX) {
invert_m4_m4(invmat, obmat);
GPU_shader_uniform_vector(shader, material->invobmatloc, 16, 1, (float*)invmat);
}
if (material->builtins & GPU_OBCOLOR) {
copy_v4_v4(col, obcol);
CLAMP(col[3], 0.0f, 1.0f);
GPU_shader_uniform_vector(shader, material->obcolloc, 4, 1, col);
}
if (material->builtins & GPU_AUTO_BUMPSCALE) {
2011-12-09 23:26:06 +00:00
GPU_shader_uniform_vector(shader, material->obautobumpscaleloc, 1, 1, &autobumpscale);
}
/* update lamps */
for (nlink=material->lamps.first; nlink; nlink=nlink->next) {
lamp= nlink->data;
if (material->dynproperty & DYN_LAMP_VEC) {
copy_v3_v3(lamp->dynvec, lamp->vec);
normalize_v3(lamp->dynvec);
negate_v3(lamp->dynvec);
mul_mat3_m4_v3(viewmat, lamp->dynvec);
}
if (material->dynproperty & DYN_LAMP_CO) {
copy_v3_v3(lamp->dynco, lamp->co);
mul_m4_v3(viewmat, lamp->dynco);
}
2012-05-01 20:08:23 +00:00
if (material->dynproperty & DYN_LAMP_IMAT) {
mult_m4_m4m4(lamp->dynimat, lamp->imat, viewinv);
2012-05-01 20:08:23 +00:00
}
if (material->dynproperty & DYN_LAMP_PERSMAT) {
if (!GPU_lamp_has_shadow_buffer(lamp)) /* The lamp matrices are already updated if we're using shadow buffers */
GPU_lamp_update_buffer_mats(lamp);
mult_m4_m4m4(lamp->dynpersmat, lamp->persmat, viewinv);
}
}
GPU_pass_update_uniforms(material->pass);
}
}
void GPU_material_unbind(GPUMaterial *material)
{
if (material->pass) {
material->bound = 0;
GPU_pass_unbind(material->pass);
}
}
int GPU_material_bound(GPUMaterial *material)
{
return material->bound;
}
void GPU_material_vertex_attributes(GPUMaterial *material, GPUVertexAttribs *attribs)
{
*attribs = material->attribs;
}
void GPU_material_output_link(GPUMaterial *material, GPUNodeLink *link)
{
if (!material->outlink)
material->outlink= link;
}
void GPU_material_enable_alpha(GPUMaterial *material)
{
material->alpha= 1;
}
TexFace to Material Settings big patch Summary: ======== The idea here is to move the texface options into the material panel. For images with the change please visit: http://code.blender.org/index.php/2011/09/bge-material-texface-changes 1 - Some of the legacy problems 2.49 and 2.5x has with the texface system: ========================================================================== 1.1) Shadow, Bilboard and Halo are mutual exclusive (in the code), yet you can select a face to be more than one mode. 1.2) Sort only works for blend Alpha yet it's an option regardless of the Transparency Blend you pick. 1.3) Shared doesn't affect anything in BGE. 1.4) ObColor only works for Text objects (old bitmap texts) when using Texture Face Materials. (not address yet, I so far ignored obcolor) 2 - Notes: ============ 2.1) Now "Use Face Textures" in material Option panel will work in Multitexture even if there is no texture channel. 2.2) In FaceTexture mode it will use TexFace all the time, even if you don't check the "Use Texture Face" option in the UI. It's a matter of decision, since the code for either way is there. I decided by the solution that makes the creation of a material fast - in this mode the user doesn't need to mess with textures or this "Use Texture Face" option at all. I'm not strong in my opinion here. But I think if we don't have this then what is the point of the Texture Face mode? 2.3) I kept references for tface only when we need the image, UV or the tiling setting. It should help later when/if we split the Image and UV layers from the tface struct (Campbell and Brecht proposal). 3 - Changes in a Nutshell: ========================== 3.1) "Texture Face" panel (in the Mesh/Object Data panel) no longer exists. Those settings are all part of the material properties, visible when Game Render is set. 3.2) "Texture Face" Shading mode (in the Render panel) is now called “Single Texture”, it needs a material for special settings (e.g. Billboard, Alpha Sort, …). 3.3) New options in the Material Panel * Shadeless option in the Material panel is now supported for all three Shading modes. * Physics is now toggleable, this is the old Collision option. * Two Side (on) is now called Back Culling (off). * Alpha Sort is one of the Alpha options, together (and mutually exclusive) to Alpha Blend, Alpha Clip, Add and Opaque (i.e. solid). * Shadow, Billboard and Halo are grouped in the “Face Orientation” property. * "Face Textures" and "Face Textures Alpha" (under Options) can be used for all but GLSL shading mode (to be supported in GLSL eventually). * The backend in the game engine is still the same as before. The only changes are in the interface and in the way you need to think your materials. The bottomline is: It’s no longer possible to share materials between faces that do not share the same game properties. 4 - Acknowledgment: ================== Mike Pan for the design discussions, and testing along the whole development process. Vitor Balbio for the first hands-on code with the interface changes. That helped me a lot to push me into work on that. Benoit Bolsee and Brecht van Lommel for patch review (* no one reviewed the whole patch, or the latest iteractions, so I still hold liability for any problems). Blender artists that gave feedback and helped testing the patch. Patch review and original documentation can be found here: http://wiki.blender.org/index.php/User:Dfelinto/TexFace http://codereview.appspot.com/4289041/
2011-09-19 19:55:59 +00:00
GPUBlendMode GPU_material_alpha_blend(GPUMaterial *material, float obcol[4])
{
if (material->alpha || (material->obcolalpha && obcol[3] < 1.0f))
return GPU_BLEND_ALPHA;
else
return GPU_BLEND_SOLID;
}
void gpu_material_add_node(GPUMaterial *material, GPUNode *node)
{
BLI_addtail(&material->nodes, node);
}
/* Code generation */
int GPU_material_do_color_management(GPUMaterial *mat)
{
if (!BKE_scene_check_color_management_enabled(mat->scene))
return FALSE;
Color Management, Stage 2: Switch color pipeline to use OpenColorIO Replace old color pipeline which was supporting linear/sRGB color spaces only with OpenColorIO-based pipeline. This introduces two configurable color spaces: - Input color space for images and movie clips. This space is used to convert images/movies from color space in which file is saved to Blender's linear space (for float images, byte images are not internally converted, only input space is stored for such images and used later). This setting could be found in image/clip data block settings. - Display color space which defines space in which particular display is working. This settings could be found in scene's Color Management panel. When render result is being displayed on the screen, apart from converting image to display space, some additional conversions could happen. This conversions are: - View, which defines tone curve applying before display transformation. These are different ways to view the image on the same display device. For example it could be used to emulate film view on sRGB display. - Exposure affects on image exposure before tone map is applied. - Gamma is post-display gamma correction, could be used to match particular display gamma. - RGB curves are user-defined curves which are applying before display transformation, could be used for different purposes. All this settings by default are only applying on render result and does not affect on other images. If some particular image needs to be affected by this transformation, "View as Render" setting of image data block should be set to truth. Movie clips are always affected by all display transformations. This commit also introduces configurable color space in which sequencer is working. This setting could be found in scene's Color Management panel and it should be used if such stuff as grading needs to be done in color space different from sRGB (i.e. when Film view on sRGB display is use, using VD16 space as sequencer's internal space would make grading working in space which is close to the space using for display). Some technical notes: - Image buffer's float buffer is now always in linear space, even if it was created from 16bit byte images. - Space of byte buffer is stored in image buffer's rect_colorspace property. - Profile of image buffer was removed since it's not longer meaningful. - OpenGL and GLSL is supposed to always work in sRGB space. It is possible to support other spaces, but it's quite large project which isn't so much important. - Legacy Color Management option disabled is emulated by using None display. It could have some regressions, but there's no clear way to avoid them. - If OpenColorIO is disabled on build time, it should make blender behaving in the same way as previous release with color management enabled. More details could be found at this page (more details would be added soon): http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.64/Color_Management -- Thanks to Xavier Thomas, Lukas Toene for initial work on OpenColorIO integration and to Brecht van Lommel for some further development and code/ usecase review!
2012-09-15 10:05:07 +00:00
return !((mat->scene->gm.flag & GAME_GLSL_NO_COLOR_MANAGEMENT));
}
static GPUNodeLink *lamp_get_visibility(GPUMaterial *mat, GPULamp *lamp, GPUNodeLink **lv, GPUNodeLink **dist)
{
GPUNodeLink *visifac, *inpr;
/* from get_lamp_visibility */
if (lamp->type==LA_SUN || lamp->type==LA_HEMI) {
mat->dynproperty |= DYN_LAMP_VEC;
GPU_link(mat, "lamp_visibility_sun_hemi", GPU_dynamic_uniform(lamp->dynvec, GPU_DYNAMIC_LAMP_DYNVEC, lamp->ob), lv, dist, &visifac);
return visifac;
}
else {
mat->dynproperty |= DYN_LAMP_CO;
GPU_link(mat, "lamp_visibility_other", GPU_builtin(GPU_VIEW_POSITION), GPU_dynamic_uniform(lamp->dynco, GPU_DYNAMIC_LAMP_DYNCO, lamp->ob), lv, dist, &visifac);
if (lamp->type==LA_AREA)
return visifac;
switch (lamp->falloff_type) {
case LA_FALLOFF_CONSTANT:
break;
case LA_FALLOFF_INVLINEAR:
GPU_link(mat, "lamp_falloff_invlinear", GPU_dynamic_uniform(&lamp->dist, GPU_DYNAMIC_LAMP_DISTANCE, lamp->ob), *dist, &visifac);
break;
case LA_FALLOFF_INVSQUARE:
GPU_link(mat, "lamp_falloff_invsquare", GPU_dynamic_uniform(&lamp->dist, GPU_DYNAMIC_LAMP_DISTANCE, lamp->ob), *dist, &visifac);
break;
case LA_FALLOFF_SLIDERS:
GPU_link(mat, "lamp_falloff_sliders", GPU_dynamic_uniform(&lamp->dist, GPU_DYNAMIC_LAMP_DISTANCE, lamp->ob), GPU_dynamic_uniform(&lamp->att1, GPU_DYNAMIC_LAMP_ATT1, lamp->ob), GPU_dynamic_uniform(&lamp->att2, GPU_DYNAMIC_LAMP_ATT2, lamp->ob), *dist, &visifac);
break;
case LA_FALLOFF_CURVE:
{
float *array;
int size;
curvemapping_initialize(lamp->curfalloff);
curvemapping_table_RGBA(lamp->curfalloff, &array, &size);
GPU_link(mat, "lamp_falloff_curve", GPU_dynamic_uniform(&lamp->dist, GPU_DYNAMIC_LAMP_DISTANCE, lamp->ob), GPU_texture(size, array), *dist, &visifac);
}
break;
}
if (lamp->mode & LA_SPHERE)
GPU_link(mat, "lamp_visibility_sphere", GPU_dynamic_uniform(&lamp->dist, GPU_DYNAMIC_LAMP_DISTANCE, lamp->ob), *dist, visifac, &visifac);
if (lamp->type == LA_SPOT) {
if (lamp->mode & LA_SQUARE) {
mat->dynproperty |= DYN_LAMP_VEC|DYN_LAMP_IMAT;
GPU_link(mat, "lamp_visibility_spot_square", GPU_dynamic_uniform(lamp->dynvec, GPU_DYNAMIC_LAMP_DYNVEC, lamp->ob), GPU_dynamic_uniform((float*)lamp->dynimat, GPU_DYNAMIC_LAMP_DYNIMAT, lamp->ob), *lv, &inpr);
}
else {
mat->dynproperty |= DYN_LAMP_VEC;
GPU_link(mat, "lamp_visibility_spot_circle", GPU_dynamic_uniform(lamp->dynvec, GPU_DYNAMIC_LAMP_DYNVEC, lamp->ob), *lv, &inpr);
}
GPU_link(mat, "lamp_visibility_spot", GPU_dynamic_uniform(&lamp->spotsi, GPU_DYNAMIC_LAMP_SPOTSIZE, lamp->ob), GPU_dynamic_uniform(&lamp->spotbl, GPU_DYNAMIC_LAMP_SPOTSIZE, lamp->ob), inpr, visifac, &visifac);
}
GPU_link(mat, "lamp_visibility_clamp", visifac, &visifac);
return visifac;
}
}
#if 0
static void area_lamp_vectors(LampRen *lar)
{
float xsize= 0.5*lar->area_size, ysize= 0.5*lar->area_sizey, multifac;
/* make it smaller, so area light can be multisampled */
multifac= 1.0f/sqrt((float)lar->ray_totsamp);
xsize *= multifac;
ysize *= multifac;
/* corner vectors */
lar->area[0][0]= lar->co[0] - xsize*lar->mat[0][0] - ysize*lar->mat[1][0];
lar->area[0][1]= lar->co[1] - xsize*lar->mat[0][1] - ysize*lar->mat[1][1];
lar->area[0][2]= lar->co[2] - xsize*lar->mat[0][2] - ysize*lar->mat[1][2];
/* corner vectors */
lar->area[1][0]= lar->co[0] - xsize*lar->mat[0][0] + ysize*lar->mat[1][0];
lar->area[1][1]= lar->co[1] - xsize*lar->mat[0][1] + ysize*lar->mat[1][1];
lar->area[1][2]= lar->co[2] - xsize*lar->mat[0][2] + ysize*lar->mat[1][2];
/* corner vectors */
lar->area[2][0]= lar->co[0] + xsize*lar->mat[0][0] + ysize*lar->mat[1][0];
lar->area[2][1]= lar->co[1] + xsize*lar->mat[0][1] + ysize*lar->mat[1][1];
lar->area[2][2]= lar->co[2] + xsize*lar->mat[0][2] + ysize*lar->mat[1][2];
/* corner vectors */
lar->area[3][0]= lar->co[0] + xsize*lar->mat[0][0] - ysize*lar->mat[1][0];
lar->area[3][1]= lar->co[1] + xsize*lar->mat[0][1] - ysize*lar->mat[1][1];
lar->area[3][2]= lar->co[2] + xsize*lar->mat[0][2] - ysize*lar->mat[1][2];
/* only for correction button size, matrix size works on energy */
lar->areasize= lar->dist*lar->dist/(4.0*xsize*ysize);
}
#endif
static void ramp_blend(GPUMaterial *mat, GPUNodeLink *fac, GPUNodeLink *col1, GPUNodeLink *col2, int type, GPUNodeLink **outcol)
{
static const char *names[] = {"mix_blend", "mix_add", "mix_mult", "mix_sub",
"mix_screen", "mix_div", "mix_diff", "mix_dark", "mix_light",
"mix_overlay", "mix_dodge", "mix_burn", "mix_hue", "mix_sat",
"mix_val", "mix_color", "mix_soft", "mix_linear"};
GPU_link(mat, names[type], fac, col1, col2, outcol);
}
static void do_colorband_blend(GPUMaterial *mat, ColorBand *coba, GPUNodeLink *fac, float rampfac, int type, GPUNodeLink *incol, GPUNodeLink **outcol)
{
GPUNodeLink *tmp, *alpha, *col;
float *array;
int size;
/* do colorband */
colorband_table_RGBA(coba, &array, &size);
GPU_link(mat, "valtorgb", fac, GPU_texture(size, array), &col, &tmp);
/* use alpha in fac */
GPU_link(mat, "mtex_alpha_from_col", col, &alpha);
GPU_link(mat, "math_multiply", alpha, GPU_uniform(&rampfac), &fac);
/* blending method */
ramp_blend(mat, fac, incol, col, type, outcol);
}
static void ramp_diffuse_result(GPUShadeInput *shi, GPUNodeLink **diff)
{
Material *ma= shi->mat;
GPUMaterial *mat= shi->gpumat;
GPUNodeLink *fac;
if (!(mat->scene->gm.flag & GAME_GLSL_NO_RAMPS)) {
if (ma->ramp_col) {
if (ma->rampin_col==MA_RAMP_IN_RESULT) {
GPU_link(mat, "ramp_rgbtobw", *diff, &fac);
/* colorband + blend */
do_colorband_blend(mat, ma->ramp_col, fac, ma->rampfac_col, ma->rampblend_col, *diff, diff);
}
}
}
}
static void add_to_diffuse(GPUMaterial *mat, Material *ma, GPUShadeInput *shi, GPUNodeLink *is, GPUNodeLink *rgb, GPUNodeLink **diff)
{
GPUNodeLink *fac, *tmp, *addcol;
if (!(mat->scene->gm.flag & GAME_GLSL_NO_RAMPS) &&
ma->ramp_col && (ma->mode & MA_RAMP_COL))
{
/* MA_RAMP_IN_RESULT is exceptional */
if (ma->rampin_col==MA_RAMP_IN_RESULT) {
addcol = shi->rgb;
}
else {
/* input */
switch (ma->rampin_col) {
case MA_RAMP_IN_ENERGY:
GPU_link(mat, "ramp_rgbtobw", rgb, &fac);
break;
case MA_RAMP_IN_SHADER:
fac= is;
break;
case MA_RAMP_IN_NOR:
GPU_link(mat, "vec_math_dot", shi->view, shi->vn, &tmp, &fac);
break;
default:
GPU_link(mat, "set_value_zero", &fac);
break;
}
/* colorband + blend */
do_colorband_blend(mat, ma->ramp_col, fac, ma->rampfac_col, ma->rampblend_col, shi->rgb, &addcol);
}
}
else
addcol = shi->rgb;
/* output to */
GPU_link(mat, "shade_madd_clamped", *diff, rgb, addcol, diff);
}
static void ramp_spec_result(GPUShadeInput *shi, GPUNodeLink **spec)
{
Material *ma= shi->mat;
GPUMaterial *mat= shi->gpumat;
GPUNodeLink *fac;
if (!(mat->scene->gm.flag & GAME_GLSL_NO_RAMPS) &&
ma->ramp_spec && ma->rampin_spec==MA_RAMP_IN_RESULT)
{
GPU_link(mat, "ramp_rgbtobw", *spec, &fac);
/* colorband + blend */
do_colorband_blend(mat, ma->ramp_spec, fac, ma->rampfac_spec, ma->rampblend_spec, *spec, spec);
}
}
static void do_specular_ramp(GPUShadeInput *shi, GPUNodeLink *is, GPUNodeLink *t, GPUNodeLink **spec)
{
Material *ma= shi->mat;
GPUMaterial *mat= shi->gpumat;
GPUNodeLink *fac, *tmp;
*spec = shi->specrgb;
/* MA_RAMP_IN_RESULT is exception */
if (ma->ramp_spec && (ma->rampin_spec!=MA_RAMP_IN_RESULT)) {
/* input */
switch (ma->rampin_spec) {
case MA_RAMP_IN_ENERGY:
fac = t;
break;
case MA_RAMP_IN_SHADER:
fac = is;
break;
case MA_RAMP_IN_NOR:
GPU_link(mat, "vec_math_dot", shi->view, shi->vn, &tmp, &fac);
break;
default:
GPU_link(mat, "set_value_zero", &fac);
break;
}
/* colorband + blend */
do_colorband_blend(mat, ma->ramp_spec, fac, ma->rampfac_spec, ma->rampblend_spec, *spec, spec);
}
}
static void add_user_list(ListBase *list, void *data)
{
LinkData *link = MEM_callocN(sizeof(LinkData), "GPULinkData");
link->data = data;
BLI_addtail(list, link);
}
static void shade_light_textures(GPUMaterial *mat, GPULamp *lamp, GPUNodeLink **rgb)
{
GPUNodeLink *tex_rgb;
MTex *mtex = NULL;
int i;
float one = 1.f;
for (i=0; i<MAX_MTEX; ++i) {
mtex = lamp->la->mtex[i];
if (mtex && mtex->tex->type & TEX_IMAGE && mtex->tex->ima) {
mat->dynproperty |= DYN_LAMP_PERSMAT;
GPU_link(mat, "shade_light_texture",
GPU_builtin(GPU_VIEW_POSITION),
GPU_image(mtex->tex->ima, &mtex->tex->iuser, FALSE),
GPU_dynamic_uniform((float*)lamp->dynpersmat, GPU_DYNAMIC_LAMP_DYNPERSMAT, lamp->ob),
&tex_rgb);
texture_rgb_blend(mat, tex_rgb, *rgb, GPU_uniform(&one), GPU_uniform(&mtex->colfac), mtex->blendtype, rgb);
}
}
}
static void shade_one_light(GPUShadeInput *shi, GPUShadeResult *shr, GPULamp *lamp)
{
Material *ma= shi->mat;
GPUMaterial *mat= shi->gpumat;
GPUNodeLink *lv, *dist, *visifac, *is, *inp, *i, *vn, *view;
GPUNodeLink *outcol, *specfac, *t, *shadfac= NULL, *lcol;
float one = 1.0f;
if ((lamp->mode & LA_ONLYSHADOW) && !(ma->mode & MA_SHADOW))
return;
vn= shi->vn;
view= shi->view;
visifac= lamp_get_visibility(mat, lamp, &lv, &dist);
2012-04-21 12:51:47 +00:00
/*if (ma->mode & MA_TANGENT_V)
GPU_link(mat, "shade_tangent_v", lv, GPU_attribute(CD_TANGENT, ""), &vn);*/
GPU_link(mat, "shade_inp", vn, lv, &inp);
if (lamp->mode & LA_NO_DIFF) {
GPU_link(mat, "shade_is_no_diffuse", &is);
}
else if (lamp->type == LA_HEMI) {
GPU_link(mat, "shade_is_hemi", inp, &is);
}
else {
if (lamp->type == LA_AREA) {
float area[4][4]= {{0.0f}}, areasize= 0.0f;
mat->dynproperty |= DYN_LAMP_VEC|DYN_LAMP_CO;
GPU_link(mat, "shade_inp_area", GPU_builtin(GPU_VIEW_POSITION), GPU_dynamic_uniform(lamp->dynco, GPU_DYNAMIC_LAMP_DYNCO, lamp->ob), GPU_dynamic_uniform(lamp->dynvec, GPU_DYNAMIC_LAMP_DYNVEC, lamp->ob), vn, GPU_uniform((float*)area),
GPU_uniform(&areasize), GPU_uniform(&lamp->k), &inp);
}
is= inp; /* Lambert */
if (!(mat->scene->gm.flag & GAME_GLSL_NO_SHADERS)) {
if (ma->diff_shader==MA_DIFF_ORENNAYAR)
GPU_link(mat, "shade_diffuse_oren_nayer", inp, vn, lv, view, GPU_uniform(&ma->roughness), &is);
else if (ma->diff_shader==MA_DIFF_TOON)
GPU_link(mat, "shade_diffuse_toon", vn, lv, view, GPU_uniform(&ma->param[0]), GPU_uniform(&ma->param[1]), &is);
else if (ma->diff_shader==MA_DIFF_MINNAERT)
GPU_link(mat, "shade_diffuse_minnaert", inp, vn, view, GPU_uniform(&ma->darkness), &is);
else if (ma->diff_shader==MA_DIFF_FRESNEL)
GPU_link(mat, "shade_diffuse_fresnel", vn, lv, view, GPU_uniform(&ma->param[0]), GPU_uniform(&ma->param[1]), &is);
}
}
if (!(mat->scene->gm.flag & GAME_GLSL_NO_SHADERS))
if (ma->shade_flag & MA_CUBIC)
GPU_link(mat, "shade_cubic", is, &is);
i = is;
GPU_link(mat, "shade_visifac", i, visifac, shi->refl, &i);
GPU_link(mat, "set_value", GPU_dynamic_uniform(lamp->dyncol, GPU_DYNAMIC_LAMP_DYNCOL, lamp->ob), &lcol);
shade_light_textures(mat, lamp, &lcol);
2012-03-09 18:28:30 +00:00
#if 0
if (ma->mode & MA_TANGENT_VN)
2012-03-09 18:28:30 +00:00
GPU_link(mat, "shade_tangent_v_spec", GPU_attribute(CD_TANGENT, ""), &vn);
#endif
/* this replaces if (i > 0.0) conditional until that is supported */
// done in shade_visifac now, GPU_link(mat, "mtex_value_clamp_positive", i, &i);
if ((ma->mode & MA_SHADOW) && GPU_lamp_has_shadow_buffer(lamp)) {
if (!(mat->scene->gm.flag & GAME_GLSL_NO_SHADOWS)) {
mat->dynproperty |= DYN_LAMP_PERSMAT;
if (lamp->la->shadowmap_type == LA_SHADMAP_VARIANCE) {
GPU_link(mat, "test_shadowbuf_vsm",
GPU_builtin(GPU_VIEW_POSITION),
GPU_dynamic_texture(lamp->tex, GPU_DYNAMIC_SAMPLER_2DSHADOW, lamp->ob),
GPU_dynamic_uniform((float*)lamp->dynpersmat, GPU_DYNAMIC_LAMP_DYNPERSMAT, lamp->ob),
GPU_uniform(&lamp->bias), GPU_uniform(&lamp->la->bleedbias), inp, &shadfac);
2012-05-22 06:29:46 +00:00
}
else {
GPU_link(mat, "test_shadowbuf",
GPU_builtin(GPU_VIEW_POSITION),
GPU_dynamic_texture(lamp->tex, GPU_DYNAMIC_SAMPLER_2DSHADOW, lamp->ob),
GPU_dynamic_uniform((float*)lamp->dynpersmat, GPU_DYNAMIC_LAMP_DYNPERSMAT, lamp->ob),
GPU_uniform(&lamp->bias), inp, &shadfac);
}
if (lamp->mode & LA_ONLYSHADOW) {
GPU_link(mat, "shade_only_shadow", i, shadfac,
GPU_dynamic_uniform(&lamp->dynenergy, GPU_DYNAMIC_LAMP_DYNENERGY, lamp->ob), &shadfac);
if (!(lamp->mode & LA_NO_DIFF)) {
GPU_link(mat, "mix_mult", shadfac, shr->diff,
GPU_uniform(lamp->shadow_color), &shr->diff);
}
if (!(lamp->mode & LA_NO_SPEC))
GPU_link(mat, "shade_only_shadow_specular", shadfac, shi->specrgb,
shr->spec, &shr->spec);
add_user_list(&mat->lamps, lamp);
add_user_list(&lamp->materials, shi->gpumat->ma);
return;
}
}
}
else if ((mat->scene->gm.flag & GAME_GLSL_NO_SHADOWS) && (lamp->mode & LA_ONLYSHADOW)) {
add_user_list(&mat->lamps, lamp);
add_user_list(&lamp->materials, shi->gpumat->ma);
return;
}
else
GPU_link(mat, "set_value", GPU_uniform(&one), &shadfac);
if (GPU_link_changed(shi->refl) || ma->ref != 0.0f) {
if (!(lamp->mode & LA_NO_DIFF)) {
GPUNodeLink *rgb;
GPU_link(mat, "shade_mul_value", i, lcol, &rgb);
GPU_link(mat, "mtex_value_invert", shadfac, &shadfac);
GPU_link(mat, "mix_mult", shadfac, rgb, GPU_uniform(lamp->shadow_color), &rgb);
GPU_link(mat, "mtex_value_invert", shadfac, &shadfac);
2012-06-04 20:11:09 +00:00
add_to_diffuse(mat, ma, shi, is, rgb, &shr->diff);
}
}
2012-10-14 13:08:19 +00:00
if (mat->scene->gm.flag & GAME_GLSL_NO_SHADERS) {
/* pass */
}
else if (!(lamp->mode & LA_NO_SPEC) && !(lamp->mode & LA_ONLYSHADOW) &&
(GPU_link_changed(shi->spec) || ma->spec != 0.0f))
{
if (lamp->type == LA_HEMI) {
GPU_link(mat, "shade_hemi_spec", vn, lv, view, GPU_uniform(&ma->spec), shi->har, visifac, &t);
GPU_link(mat, "shade_add_spec", t, lcol, shi->specrgb, &outcol);
GPU_link(mat, "shade_add_clamped", shr->spec, outcol, &shr->spec);
}
else {
if (ma->spec_shader==MA_SPEC_PHONG)
GPU_link(mat, "shade_phong_spec", vn, lv, view, shi->har, &specfac);
else if (ma->spec_shader==MA_SPEC_COOKTORR)
GPU_link(mat, "shade_cooktorr_spec", vn, lv, view, shi->har, &specfac);
else if (ma->spec_shader==MA_SPEC_BLINN)
GPU_link(mat, "shade_blinn_spec", vn, lv, view, GPU_uniform(&ma->refrac), shi->har, &specfac);
else if (ma->spec_shader==MA_SPEC_WARDISO)
GPU_link(mat, "shade_wardiso_spec", vn, lv, view, GPU_uniform(&ma->rms), &specfac);
else
GPU_link(mat, "shade_toon_spec", vn, lv, view, GPU_uniform(&ma->param[2]), GPU_uniform(&ma->param[3]), &specfac);
if (lamp->type==LA_AREA)
GPU_link(mat, "shade_spec_area_inp", specfac, inp, &specfac);
GPU_link(mat, "shade_spec_t", shadfac, shi->spec, visifac, specfac, &t);
if (ma->mode & MA_RAMP_SPEC) {
GPUNodeLink *spec;
do_specular_ramp(shi, specfac, t, &spec);
GPU_link(mat, "shade_add_spec", t, lcol, spec, &outcol);
GPU_link(mat, "shade_add_clamped", shr->spec, outcol, &shr->spec);
}
else {
GPU_link(mat, "shade_add_spec", t, lcol, shi->specrgb, &outcol);
GPU_link(mat, "shade_add_clamped", shr->spec, outcol, &shr->spec);
}
}
}
add_user_list(&mat->lamps, lamp);
add_user_list(&lamp->materials, shi->gpumat->ma);
}
static void material_lights(GPUShadeInput *shi, GPUShadeResult *shr)
{
Base *base;
Object *ob;
Scene *sce_iter;
GPULamp *lamp;
for (SETLOOPER(shi->gpumat->scene, sce_iter, base)) {
ob= base->object;
if (ob->type==OB_LAMP) {
lamp = GPU_lamp_from_blender(shi->gpumat->scene, ob, NULL);
if (lamp)
shade_one_light(shi, shr, lamp);
}
if (ob->transflag & OB_DUPLI) {
DupliObject *dob;
ListBase *lb = object_duplilist(shi->gpumat->scene, ob, FALSE);
for (dob=lb->first; dob; dob=dob->next) {
Object *ob_iter = dob->ob;
if (ob_iter->type==OB_LAMP) {
copy_m4_m4(ob_iter->obmat, dob->mat);
lamp = GPU_lamp_from_blender(shi->gpumat->scene, ob_iter, ob);
if (lamp)
shade_one_light(shi, shr, lamp);
}
}
free_object_duplilist(lb);
}
}
}
static void texture_rgb_blend(GPUMaterial *mat, GPUNodeLink *tex, GPUNodeLink *out, GPUNodeLink *fact, GPUNodeLink *facg, int blendtype, GPUNodeLink **in)
{
switch (blendtype) {
case MTEX_BLEND:
GPU_link(mat, "mtex_rgb_blend", out, tex, fact, facg, in);
break;
case MTEX_MUL:
GPU_link(mat, "mtex_rgb_mul", out, tex, fact, facg, in);
break;
case MTEX_SCREEN:
GPU_link(mat, "mtex_rgb_screen", out, tex, fact, facg, in);
break;
case MTEX_OVERLAY:
GPU_link(mat, "mtex_rgb_overlay", out, tex, fact, facg, in);
break;
case MTEX_SUB:
GPU_link(mat, "mtex_rgb_sub", out, tex, fact, facg, in);
break;
case MTEX_ADD:
GPU_link(mat, "mtex_rgb_add", out, tex, fact, facg, in);
break;
case MTEX_DIV:
GPU_link(mat, "mtex_rgb_div", out, tex, fact, facg, in);
break;
case MTEX_DIFF:
GPU_link(mat, "mtex_rgb_diff", out, tex, fact, facg, in);
break;
case MTEX_DARK:
GPU_link(mat, "mtex_rgb_dark", out, tex, fact, facg, in);
break;
case MTEX_LIGHT:
GPU_link(mat, "mtex_rgb_light", out, tex, fact, facg, in);
break;
case MTEX_BLEND_HUE:
GPU_link(mat, "mtex_rgb_hue", out, tex, fact, facg, in);
break;
case MTEX_BLEND_SAT:
GPU_link(mat, "mtex_rgb_sat", out, tex, fact, facg, in);
break;
case MTEX_BLEND_VAL:
GPU_link(mat, "mtex_rgb_val", out, tex, fact, facg, in);
break;
case MTEX_BLEND_COLOR:
GPU_link(mat, "mtex_rgb_color", out, tex, fact, facg, in);
break;
default:
GPU_link(mat, "set_rgb_zero", &in);
break;
}
}
static void texture_value_blend(GPUMaterial *mat, GPUNodeLink *tex, GPUNodeLink *out, GPUNodeLink *fact, GPUNodeLink *facg, int blendtype, GPUNodeLink **in)
{
switch (blendtype) {
case MTEX_BLEND:
GPU_link(mat, "mtex_value_blend", out, tex, fact, facg, in);
break;
case MTEX_MUL:
GPU_link(mat, "mtex_value_mul", out, tex, fact, facg, in);
break;
case MTEX_SCREEN:
GPU_link(mat, "mtex_value_screen", out, tex, fact, facg, in);
break;
case MTEX_SUB:
GPU_link(mat, "mtex_value_sub", out, tex, fact, facg, in);
break;
case MTEX_ADD:
GPU_link(mat, "mtex_value_add", out, tex, fact, facg, in);
break;
case MTEX_DIV:
GPU_link(mat, "mtex_value_div", out, tex, fact, facg, in);
break;
case MTEX_DIFF:
GPU_link(mat, "mtex_value_diff", out, tex, fact, facg, in);
break;
case MTEX_DARK:
GPU_link(mat, "mtex_value_dark", out, tex, fact, facg, in);
break;
case MTEX_LIGHT:
GPU_link(mat, "mtex_value_light", out, tex, fact, facg, in);
break;
default:
GPU_link(mat, "set_value_zero", &in);
break;
}
}
static void do_material_tex(GPUShadeInput *shi)
{
Material *ma= shi->mat;
GPUMaterial *mat= shi->gpumat;
MTex *mtex;
Tex *tex;
GPUNodeLink *texco, *tin, *trgb, *tnor, *tcol, *stencil, *tnorfac;
GPUNodeLink *texco_norm, *texco_orco, *texco_object;
GPUNodeLink *texco_global, *texco_uv = NULL;
GPUNodeLink *newnor, *orn;
/*char *lastuvname = NULL;*/ /*UNUSED*/
float one = 1.0f, norfac, ofs[3];
int tex_nr, rgbnor, talpha;
int init_done = FALSE, iBumpSpacePrev = 0; /* Not necessary, quiting gcc warning. */
GPUNodeLink *vNorg, *vNacc, *fPrevMagnitude;
int iFirstTimeNMap=1;
int found_deriv_map = 0;
GPU_link(mat, "set_value", GPU_uniform(&one), &stencil);
GPU_link(mat, "texco_norm", GPU_builtin(GPU_VIEW_NORMAL), &texco_norm);
GPU_link(mat, "texco_orco", GPU_attribute(CD_ORCO, ""), &texco_orco);
GPU_link(mat, "texco_object", GPU_builtin(GPU_INVERSE_VIEW_MATRIX),
GPU_builtin(GPU_INVERSE_OBJECT_MATRIX),
GPU_builtin(GPU_VIEW_POSITION), &texco_object);
//GPU_link(mat, "texco_tangent", GPU_attribute(CD_TANGENT, ""), &texco_tangent);
GPU_link(mat, "texco_global", GPU_builtin(GPU_INVERSE_VIEW_MATRIX),
GPU_builtin(GPU_VIEW_POSITION), &texco_global);
orn= texco_norm;
/* go over texture slots */
for (tex_nr=0; tex_nr<MAX_MTEX; tex_nr++) {
/* separate tex switching */
if (ma->septex & (1<<tex_nr)) continue;
if (ma->mtex[tex_nr]) {
mtex= ma->mtex[tex_nr];
tex= mtex->tex;
if (tex == NULL) continue;
/* which coords */
if (mtex->texco==TEXCO_ORCO)
texco= texco_orco;
else if (mtex->texco==TEXCO_OBJECT)
texco= texco_object;
else if (mtex->texco==TEXCO_NORM)
texco= orn;
else if (mtex->texco==TEXCO_TANGENT)
texco= texco_object;
else if (mtex->texco==TEXCO_GLOB)
texco= texco_global;
else if (mtex->texco==TEXCO_REFL) {
GPU_link(mat, "texco_refl", shi->vn, shi->view, &shi->ref);
texco= shi->ref;
}
else if (mtex->texco==TEXCO_UV) {
if (1) { //!(texco_uv && strcmp(mtex->uvname, lastuvname) == 0)) {
GPU_link(mat, "texco_uv", GPU_attribute(CD_MTFACE, mtex->uvname), &texco_uv);
/*lastuvname = mtex->uvname;*/ /*UNUSED*/
}
texco= texco_uv;
}
else
continue;
/* in case of uv, this would just undo a multiplication in texco_uv */
if (mtex->texco != TEXCO_UV)
GPU_link(mat, "mtex_2d_mapping", texco, &texco);
if (mtex->size[0] != 1.0f || mtex->size[1] != 1.0f || mtex->size[2] != 1.0f)
GPU_link(mat, "mtex_mapping_size", texco, GPU_uniform(mtex->size), &texco);
ofs[0] = mtex->ofs[0] + 0.5f - 0.5f*mtex->size[0];
ofs[1] = mtex->ofs[1] + 0.5f - 0.5f*mtex->size[1];
ofs[2] = 0.0f;
if (ofs[0] != 0.0f || ofs[1] != 0.0f || ofs[2] != 0.0f)
GPU_link(mat, "mtex_mapping_ofs", texco, GPU_uniform(ofs), &texco);
talpha = 0;
if (tex && tex->type == TEX_IMAGE && tex->ima) {
GPU_link(mat, "mtex_image", texco, GPU_image(tex->ima, &tex->iuser, FALSE), &tin, &trgb);
rgbnor= TEX_RGB;
Alpha premul pipeline cleanup This assumptions are now made: - Internally float buffers are always linear alpha-premul colors - Readers should worry about delivering float buffers with that assumptions. - There's an input image setting to say whether it's stored with straight/premul alpha on the disk. - Byte buffers are now assumed have straight alpha, readers should deliver straight alpha. Some implementation details: - Removed scene's color unpremultiply setting, which was very much confusing and was wrong for default settings. Now all renderers assumes to deliver premultiplied alpha. - IMB_buffer_byte_from_float will now linearize alpha when converting from buffer. - Sequencer's effects were changed to assume bytes have got straight alpha. Most of effects will work with bytes still, however for glow it was more tricky to avoid data loss, so there's a commented out glow implementation which converts byte buffer to floats first, operates on floats and returns bytes back. It's slower and not sure if it should actually be used -- who're using glow on alpha anyway? - Sequencer modifiers should also be working nice with straight bytes now. - GLSL preview will predivide float textures to make nice shading, shading with byte textures worked nice (GLSL was assuming straight alpha). - Blender Internal will set alpha=1 to the whole sky. The same happens in Cycles and there's no way to avoid this -- sky is neither straight nor premul and doesn't fit color pipeline well. - Straight alpha mode for render result was also eliminated. - Conversion to correct alpha need to be done before linearizing float buffer. - TIFF will now load and save files with proper alpha mode setting in file meta data header. - Remove Use Alpha from texture mapping and replaced with image datablock setting. Behaves much more predictable and clear from code point of view and solves possible regressions when non-premultiplied images were used as textures with ignoring alpha channel.
2012-12-31 13:52:13 +00:00
talpha= 1;
}
2012-07-07 22:51:57 +00:00
else {
continue;
}
/* texture output */
if ((rgbnor & TEX_RGB) && (mtex->texflag & MTEX_RGBTOINT)) {
GPU_link(mat, "mtex_rgbtoint", trgb, &tin);
rgbnor -= TEX_RGB;
}
if (mtex->texflag & MTEX_NEGATIVE) {
if (rgbnor & TEX_RGB)
GPU_link(mat, "mtex_rgb_invert", trgb, &trgb);
else
GPU_link(mat, "mtex_value_invert", tin, &tin);
}
if (mtex->texflag & MTEX_STENCIL) {
if (rgbnor & TEX_RGB)
GPU_link(mat, "mtex_rgb_stencil", stencil, trgb, &stencil, &trgb);
else
GPU_link(mat, "mtex_value_stencil", stencil, tin, &stencil, &tin);
}
/* mapping */
if (mtex->mapto & (MAP_COL+MAP_COLSPEC)) {
/* stencil maps on the texture control slider, not texture intensity value */
if ((rgbnor & TEX_RGB)==0) {
GPU_link(mat, "set_rgb", GPU_uniform(&mtex->r), &tcol);
}
else {
GPU_link(mat, "set_rgba", trgb, &tcol);
if (mtex->mapto & MAP_ALPHA)
GPU_link(mat, "set_value", stencil, &tin);
else if (talpha)
GPU_link(mat, "mtex_alpha_from_col", trgb, &tin);
else
GPU_link(mat, "set_value_one", &tin);
}
if (tex->type==TEX_IMAGE)
if (GPU_material_do_color_management(mat))
GPU_link(mat, "srgb_to_linearrgb", tcol, &tcol);
if (mtex->mapto & MAP_COL) {
GPUNodeLink *colfac;
if (mtex->colfac == 1.0f) colfac = stencil;
else GPU_link(mat, "math_multiply", GPU_uniform(&mtex->colfac), stencil, &colfac);
texture_rgb_blend(mat, tcol, shi->rgb, tin, colfac, mtex->blendtype, &shi->rgb);
}
if (!(mat->scene->gm.flag & GAME_GLSL_NO_EXTRA_TEX) && (mtex->mapto & MAP_COLSPEC)) {
GPUNodeLink *colspecfac;
if (mtex->colspecfac == 1.0f) colspecfac = stencil;
else GPU_link(mat, "math_multiply", GPU_uniform(&mtex->colspecfac), stencil, &colspecfac);
texture_rgb_blend(mat, tcol, shi->specrgb, tin, colspecfac, mtex->blendtype, &shi->specrgb);
}
}
if (!(mat->scene->gm.flag & GAME_GLSL_NO_EXTRA_TEX) && (mtex->mapto & MAP_NORM)) {
if (tex->type==TEX_IMAGE) {
found_deriv_map = tex->imaflag & TEX_DERIVATIVEMAP;
if (tex->imaflag & TEX_NORMALMAP) {
/* normalmap image */
GPU_link(mat, "mtex_normal", texco, GPU_image(tex->ima, &tex->iuser, TRUE), &tnor);
if (mtex->norfac < 0.0f)
GPU_link(mat, "mtex_negate_texnormal", tnor, &tnor);
2012-03-07 04:53:43 +00:00
if (mtex->normapspace == MTEX_NSPACE_TANGENT) {
if (iFirstTimeNMap != 0) {
// use unnormalized normal (this is how we bake it - closer to gamedev)
GPUNodeLink *vNegNorm;
GPU_link(mat, "vec_math_negate", GPU_builtin(GPU_VIEW_NORMAL), &vNegNorm);
GPU_link(mat, "mtex_nspace_tangent", GPU_attribute(CD_TANGENT, ""), vNegNorm, tnor, &newnor);
iFirstTimeNMap = 0;
}
2012-03-07 04:53:43 +00:00
else { /* otherwise use accumulated perturbations */
GPU_link(mat, "mtex_nspace_tangent", GPU_attribute(CD_TANGENT, ""), shi->vn, tnor, &newnor);
}
}
2012-03-07 04:53:43 +00:00
else {
newnor = tnor;
2012-03-07 04:53:43 +00:00
}
norfac = min_ff(fabsf(mtex->norfac), 1.0f);
if (norfac == 1.0f && !GPU_link_changed(stencil)) {
shi->vn = newnor;
}
else {
tnorfac = GPU_uniform(&norfac);
if (GPU_link_changed(stencil))
GPU_link(mat, "math_multiply", tnorfac, stencil, &tnorfac);
GPU_link(mat, "mtex_blend_normal", tnorfac, shi->vn, newnor, &shi->vn);
}
2012-03-07 04:53:43 +00:00
}
else if ( (mtex->texflag & (MTEX_3TAP_BUMP|MTEX_5TAP_BUMP|MTEX_BICUBIC_BUMP)) || found_deriv_map) {
/* ntap bumpmap image */
int iBumpSpace;
float ima_x, ima_y;
2011-12-09 23:26:06 +00:00
float hScale;
float imag_tspace_dimension_x = 1024.0f; // only used for texture space variant
float aspect = 1.0f;
GPUNodeLink *surf_pos = GPU_builtin(GPU_VIEW_POSITION);
GPUNodeLink *vR1, *vR2;
GPUNodeLink *dBs, *dBt, *fDet;
2011-12-09 23:26:06 +00:00
hScale = 0.1; // compatibility adjustment factor for all bumpspace types
if ( mtex->texflag & MTEX_BUMP_TEXTURESPACE )
2011-12-09 23:26:06 +00:00
hScale = 13.0f; // factor for scaling texspace bumps
else if (found_deriv_map!=0)
2011-12-09 23:26:06 +00:00
hScale = 1.0f;
// resolve texture resolution
if ( (mtex->texflag & MTEX_BUMP_TEXTURESPACE) || found_deriv_map ) {
ImBuf *ibuf= BKE_image_acquire_ibuf(tex->ima, &tex->iuser, NULL);
2011-12-09 23:26:06 +00:00
ima_x= 512.0f; ima_y= 512.f; // prevent calling textureSize, glsl 1.3 only
if (ibuf) {
2011-12-09 23:26:06 +00:00
ima_x= ibuf->x;
ima_y= ibuf->y;
aspect = ((float) ima_y) / ima_x;
}
BKE_image_release_ibuf(tex->ima, ibuf, NULL);
2011-12-09 23:26:06 +00:00
}
// The negate on norfac is done because the
// normal in the renderer points inward which corresponds
// to inverting the bump map. Should this ever change
// this negate must be removed.
norfac = -hScale * mtex->norfac;
2012-03-07 04:53:43 +00:00
if (found_deriv_map) {
float fVirtDim = sqrtf(fabsf(ima_x*mtex->size[0]*ima_y*mtex->size[1]));
norfac /= MAX2(fVirtDim, FLT_EPSILON);
}
2011-12-09 23:26:06 +00:00
tnorfac = GPU_uniform(&norfac);
2011-12-09 23:26:06 +00:00
if (found_deriv_map)
2011-12-09 23:26:06 +00:00
GPU_link(mat, "math_multiply", tnorfac, GPU_builtin(GPU_AUTO_BUMPSCALE), &tnorfac);
if (GPU_link_changed(stencil))
GPU_link(mat, "math_multiply", tnorfac, stencil, &tnorfac);
if ( !init_done ) {
// copy shi->vn to vNorg and vNacc, set magnitude to 1
GPU_link(mat, "mtex_bump_normals_init", shi->vn, &vNorg, &vNacc, &fPrevMagnitude);
iBumpSpacePrev = 0;
init_done = TRUE;
}
// find current bump space
if ( mtex->texflag & MTEX_BUMP_OBJECTSPACE )
iBumpSpace = 1;
else if ( mtex->texflag & MTEX_BUMP_TEXTURESPACE )
iBumpSpace = 2;
else
iBumpSpace = 4; // ViewSpace
// re-initialize if bump space changed
if ( iBumpSpacePrev != iBumpSpace ) {
if ( mtex->texflag & MTEX_BUMP_OBJECTSPACE )
GPU_link(mat, "mtex_bump_init_objspace",
surf_pos, vNorg,
GPU_builtin(GPU_VIEW_MATRIX), GPU_builtin(GPU_INVERSE_VIEW_MATRIX), GPU_builtin(GPU_OBJECT_MATRIX), GPU_builtin(GPU_INVERSE_OBJECT_MATRIX),
fPrevMagnitude, vNacc,
&fPrevMagnitude, &vNacc,
&vR1, &vR2, &fDet);
else if ( mtex->texflag & MTEX_BUMP_TEXTURESPACE )
GPU_link(mat, "mtex_bump_init_texturespace",
surf_pos, vNorg,
fPrevMagnitude, vNacc,
&fPrevMagnitude, &vNacc,
&vR1, &vR2, &fDet);
else
GPU_link(mat, "mtex_bump_init_viewspace",
surf_pos, vNorg,
fPrevMagnitude, vNacc,
&fPrevMagnitude, &vNacc,
&vR1, &vR2, &fDet);
iBumpSpacePrev = iBumpSpace;
}
if (found_deriv_map) {
GPU_link(mat, "mtex_bump_deriv",
texco, GPU_image(tex->ima, &tex->iuser, TRUE), GPU_uniform(&ima_x), GPU_uniform(&ima_y), tnorfac,
&dBs, &dBt );
}
else if ( mtex->texflag & MTEX_3TAP_BUMP)
GPU_link(mat, "mtex_bump_tap3",
texco, GPU_image(tex->ima, &tex->iuser, TRUE), tnorfac,
&dBs, &dBt );
else if ( mtex->texflag & MTEX_5TAP_BUMP)
GPU_link(mat, "mtex_bump_tap5",
texco, GPU_image(tex->ima, &tex->iuser, TRUE), tnorfac,
&dBs, &dBt );
else if ( mtex->texflag & MTEX_BICUBIC_BUMP ) {
if (GPU_bicubic_bump_support()) {
GPU_link(mat, "mtex_bump_bicubic",
texco, GPU_image(tex->ima, &tex->iuser, TRUE), tnorfac,
&dBs, &dBt);
}
else {
GPU_link(mat, "mtex_bump_tap5",
texco, GPU_image(tex->ima, &tex->iuser, TRUE), tnorfac,
&dBs, &dBt);
}
}
if ( mtex->texflag & MTEX_BUMP_TEXTURESPACE ) {
float imag_tspace_dimension_y = aspect*imag_tspace_dimension_x;
GPU_link(mat, "mtex_bump_apply_texspace",
fDet, dBs, dBt, vR1, vR2,
GPU_image(tex->ima, &tex->iuser, TRUE), texco,
GPU_uniform(&imag_tspace_dimension_x), GPU_uniform(&imag_tspace_dimension_y), vNacc,
&vNacc, &shi->vn );
}
else
GPU_link(mat, "mtex_bump_apply",
fDet, dBs, dBt, vR1, vR2, vNacc,
&vNacc, &shi->vn );
}
}
GPU_link(mat, "vec_math_negate", shi->vn, &orn);
}
if ((mtex->mapto & MAP_VARS)) {
if (rgbnor & TEX_RGB) {
if (talpha)
GPU_link(mat, "mtex_alpha_from_col", trgb, &tin);
else
GPU_link(mat, "mtex_rgbtoint", trgb, &tin);
}
if (!(mat->scene->gm.flag & GAME_GLSL_NO_EXTRA_TEX) && mtex->mapto & MAP_REF) {
GPUNodeLink *difffac;
if (mtex->difffac == 1.0f) difffac = stencil;
else GPU_link(mat, "math_multiply", GPU_uniform(&mtex->difffac), stencil, &difffac);
texture_value_blend(mat, GPU_uniform(&mtex->def_var), shi->refl, tin, difffac, mtex->blendtype, &shi->refl);
GPU_link(mat, "mtex_value_clamp_positive", shi->refl, &shi->refl);
}
if (!(mat->scene->gm.flag & GAME_GLSL_NO_EXTRA_TEX) && mtex->mapto & MAP_SPEC) {
GPUNodeLink *specfac;
if (mtex->specfac == 1.0f) specfac = stencil;
else GPU_link(mat, "math_multiply", GPU_uniform(&mtex->specfac), stencil, &specfac);
texture_value_blend(mat, GPU_uniform(&mtex->def_var), shi->spec, tin, specfac, mtex->blendtype, &shi->spec);
GPU_link(mat, "mtex_value_clamp_positive", shi->spec, &shi->spec);
}
if (!(mat->scene->gm.flag & GAME_GLSL_NO_EXTRA_TEX) && mtex->mapto & MAP_EMIT) {
GPUNodeLink *emitfac;
if (mtex->emitfac == 1.0f) emitfac = stencil;
else GPU_link(mat, "math_multiply", GPU_uniform(&mtex->emitfac), stencil, &emitfac);
texture_value_blend(mat, GPU_uniform(&mtex->def_var), shi->emit, tin, emitfac, mtex->blendtype, &shi->emit);
GPU_link(mat, "mtex_value_clamp_positive", shi->emit, &shi->emit);
}
if (!(mat->scene->gm.flag & GAME_GLSL_NO_EXTRA_TEX) && mtex->mapto & MAP_HAR) {
GPUNodeLink *hardfac;
if (mtex->hardfac == 1.0f) hardfac = stencil;
else GPU_link(mat, "math_multiply", GPU_uniform(&mtex->hardfac), stencil, &hardfac);
GPU_link(mat, "mtex_har_divide", shi->har, &shi->har);
texture_value_blend(mat, GPU_uniform(&mtex->def_var), shi->har, tin, hardfac, mtex->blendtype, &shi->har);
GPU_link(mat, "mtex_har_multiply_clamp", shi->har, &shi->har);
}
if (mtex->mapto & MAP_ALPHA) {
GPUNodeLink *alphafac;
if (mtex->alphafac == 1.0f) alphafac = stencil;
else GPU_link(mat, "math_multiply", GPU_uniform(&mtex->alphafac), stencil, &alphafac);
texture_value_blend(mat, GPU_uniform(&mtex->def_var), shi->alpha, tin, alphafac, mtex->blendtype, &shi->alpha);
GPU_link(mat, "mtex_value_clamp", shi->alpha, &shi->alpha);
}
if (!(mat->scene->gm.flag & GAME_GLSL_NO_EXTRA_TEX) && mtex->mapto & MAP_AMB) {
GPUNodeLink *ambfac;
if (mtex->ambfac == 1.0f) ambfac = stencil;
else GPU_link(mat, "math_multiply", GPU_uniform(&mtex->ambfac), stencil, &ambfac);
texture_value_blend(mat, GPU_uniform(&mtex->def_var), shi->amb, tin, ambfac, mtex->blendtype, &shi->amb);
GPU_link(mat, "mtex_value_clamp", shi->amb, &shi->amb);
}
}
}
}
}
void GPU_shadeinput_set(GPUMaterial *mat, Material *ma, GPUShadeInput *shi)
{
float hard = ma->har;
float one = 1.0f;
memset(shi, 0, sizeof(*shi));
shi->gpumat = mat;
shi->mat = ma;
GPU_link(mat, "set_rgb", GPU_uniform(&ma->r), &shi->rgb);
GPU_link(mat, "set_rgb", GPU_uniform(&ma->specr), &shi->specrgb);
GPU_link(mat, "shade_norm", GPU_builtin(GPU_VIEW_NORMAL), &shi->vn);
if (ma->mode & MA_TRANSP)
GPU_link(mat, "set_value", GPU_uniform(&ma->alpha), &shi->alpha);
else
GPU_link(mat, "set_value", GPU_uniform(&one), &shi->alpha);
GPU_link(mat, "set_value", GPU_uniform(&ma->ref), &shi->refl);
GPU_link(mat, "set_value", GPU_uniform(&ma->spec), &shi->spec);
GPU_link(mat, "set_value", GPU_uniform(&ma->emit), &shi->emit);
GPU_link(mat, "set_value", GPU_uniform(&hard), &shi->har);
GPU_link(mat, "set_value", GPU_uniform(&ma->amb), &shi->amb);
GPU_link(mat, "shade_view", GPU_builtin(GPU_VIEW_POSITION), &shi->view);
GPU_link(mat, "vcol_attribute", GPU_attribute(CD_MCOL, ""), &shi->vcol);
if (GPU_material_do_color_management(mat))
GPU_link(mat, "srgb_to_linearrgb", shi->vcol, &shi->vcol);
GPU_link(mat, "texco_refl", shi->vn, shi->view, &shi->ref);
}
void GPU_shaderesult_set(GPUShadeInput *shi, GPUShadeResult *shr)
{
GPUMaterial *mat= shi->gpumat;
GPUNodeLink *emit, *ulinfac, *ulogfac, *mistfac;
Material *ma= shi->mat;
World *world= mat->scene->world;
float linfac, logfac, misttype;
memset(shr, 0, sizeof(*shr));
if (ma->mode & MA_VERTEXCOLP)
shi->rgb = shi->vcol;
do_material_tex(shi);
if ((ma->mode & MA_TRANSP) && (ma->mode & MA_ZTRANSP))
GPU_material_enable_alpha(mat);
if ((mat->scene->gm.flag & GAME_GLSL_NO_LIGHTS) || (ma->mode & MA_SHLESS)) {
GPU_link(mat, "set_rgb", shi->rgb, &shr->diff);
GPU_link(mat, "set_rgb_zero", &shr->spec);
GPU_link(mat, "set_value", shi->alpha, &shr->alpha);
shr->combined = shr->diff;
}
else {
if (GPU_link_changed(shi->emit) || ma->emit != 0.0f) {
if ((ma->mode & (MA_VERTEXCOL|MA_VERTEXCOLP))== MA_VERTEXCOL) {
GPU_link(mat, "shade_add", shi->emit, shi->vcol, &emit);
GPU_link(mat, "shade_mul", emit, shi->rgb, &shr->diff);
}
else
GPU_link(mat, "shade_mul_value", shi->emit, shi->rgb, &shr->diff);
}
else
GPU_link(mat, "set_rgb_zero", &shr->diff);
GPU_link(mat, "set_rgb_zero", &shr->spec);
material_lights(shi, shr);
shr->combined = shr->diff;
GPU_link(mat, "set_value", shi->alpha, &shr->alpha);
if (world) {
/* exposure correction */
if (world->exp!=0.0f || world->range!=1.0f) {
2011-11-11 12:00:08 +00:00
linfac= 1.0f + powf((2.0f*world->exp + 0.5f), -10);
logfac= logf((linfac-1.0f)/linfac)/world->range;
GPU_link(mat, "set_value", GPU_uniform(&linfac), &ulinfac);
GPU_link(mat, "set_value", GPU_uniform(&logfac), &ulogfac);
GPU_link(mat, "shade_exposure_correct", shr->combined,
ulinfac, ulogfac, &shr->combined);
GPU_link(mat, "shade_exposure_correct", shr->spec,
ulinfac, ulogfac, &shr->spec);
}
/* ambient color */
if (world->ambr!=0.0f || world->ambg!=0.0f || world->ambb!=0.0f) {
if (GPU_link_changed(shi->amb) || ma->amb != 0.0f)
GPU_link(mat, "shade_maddf", shr->combined, GPU_uniform(&ma->amb),
GPU_uniform(&world->ambr), &shr->combined);
}
}
if (ma->mode & MA_RAMP_COL) ramp_diffuse_result(shi, &shr->combined);
if (ma->mode & MA_RAMP_SPEC) ramp_spec_result(shi, &shr->spec);
if (GPU_link_changed(shi->spec) || ma->spec != 0.0f)
GPU_link(mat, "shade_add", shr->combined, shr->spec, &shr->combined);
}
GPU_link(mat, "mtex_alpha_to_col", shr->combined, shr->alpha, &shr->combined);
if (ma->shade_flag & MA_OBCOLOR)
GPU_link(mat, "shade_obcolor", shr->combined, GPU_builtin(GPU_OBCOLOR), &shr->combined);
if (world && (world->mode & WO_MIST) && !(ma->mode & MA_NOMIST)) {
misttype = world->mistype;
GPU_link(mat, "shade_mist_factor", GPU_builtin(GPU_VIEW_POSITION),
GPU_uniform(&world->miststa), GPU_uniform(&world->mistdist),
GPU_uniform(&misttype), GPU_uniform(&world->misi), &mistfac);
GPU_link(mat, "mix_blend", mistfac, shr->combined,
GPU_uniform(&world->horr), &shr->combined);
}
if (!((ma->mode & MA_TRANSP) && (ma->mode & MA_ZTRANSP))) {
if (world && (GPU_link_changed(shr->alpha) || ma->alpha != 1.0f))
GPU_link(mat, "shade_world_mix", GPU_uniform(&world->horr),
shr->combined, &shr->combined);
GPU_link(mat, "shade_alpha_opaque", shr->combined, &shr->combined);
}
if (ma->shade_flag & MA_OBCOLOR) {
mat->obcolalpha = 1;
GPU_link(mat, "shade_alpha_obcolor", shr->combined, GPU_builtin(GPU_OBCOLOR), &shr->combined);
}
}
static GPUNodeLink *GPU_blender_material(GPUMaterial *mat, Material *ma)
{
GPUShadeInput shi;
GPUShadeResult shr;
GPU_shadeinput_set(mat, ma, &shi);
GPU_shaderesult_set(&shi, &shr);
return shr.combined;
}
static GPUNodeLink *gpu_material_diffuse_bsdf(GPUMaterial *mat, Material *ma)
{
static float roughness = 0.0f;
GPUNodeLink *outlink;
GPU_link(mat, "node_bsdf_diffuse", GPU_uniform(&ma->r), GPU_uniform(&roughness), GPU_builtin(GPU_VIEW_NORMAL), &outlink);
return outlink;
}
GPUMaterial *GPU_material_from_blender(Scene *scene, Material *ma)
{
GPUMaterial *mat;
GPUNodeLink *outlink;
LinkData *link;
for (link=ma->gpumaterial.first; link; link=link->next)
if (((GPUMaterial*)link->data)->scene == scene)
return link->data;
/* allocate material */
mat = GPU_material_construct_begin(ma);
mat->scene = scene;
if (!(scene->gm.flag & GAME_GLSL_NO_NODES) && ma->nodetree && ma->use_nodes) {
/* create nodes */
ntreeGPUMaterialNodes(ma->nodetree, mat);
}
else {
2012-12-18 01:46:15 +00:00
if (BKE_scene_use_new_shading_nodes(scene)) {
/* create simple diffuse material instead of nodes */
outlink = gpu_material_diffuse_bsdf(mat, ma);
}
else {
/* create blender material */
outlink = GPU_blender_material(mat, ma);
}
GPU_material_output_link(mat, outlink);
}
if (GPU_material_do_color_management(mat))
if (mat->outlink)
GPU_link(mat, "linearrgb_to_srgb", mat->outlink, &mat->outlink);
GPU_material_construct_end(mat);
/* note that even if building the shader fails in some way, we still keep
2012-03-09 18:28:30 +00:00
* it to avoid trying to compile again and again, and simple do not use
* the actual shader on drawing */
link = MEM_callocN(sizeof(LinkData), "GPUMaterialLink");
link->data = mat;
BLI_addtail(&ma->gpumaterial, link);
return mat;
}
void GPU_materials_free(void)
{
Object *ob;
Material *ma;
extern Material defmaterial;
for (ma=G.main->mat.first; ma; ma=ma->id.next)
GPU_material_free(ma);
GPU_material_free(&defmaterial);
for (ob=G.main->object.first; ob; ob=ob->id.next)
GPU_lamp_free(ob);
}
/* Lamps and shadow buffers */
void GPU_lamp_update(GPULamp *lamp, int lay, int hide, float obmat[4][4])
{
float mat[4][4];
lamp->lay = lay;
lamp->hide = hide;
copy_m4_m4(mat, obmat);
normalize_m4(mat);
copy_v3_v3(lamp->vec, mat[2]);
copy_v3_v3(lamp->co, mat[3]);
copy_m4_m4(lamp->obmat, mat);
invert_m4_m4(lamp->imat, mat);
}
void GPU_lamp_update_colors(GPULamp *lamp, float r, float g, float b, float energy)
{
lamp->energy = energy;
if (lamp->mode & LA_NEG) lamp->energy= -lamp->energy;
lamp->col[0]= r* lamp->energy;
lamp->col[1]= g* lamp->energy;
lamp->col[2]= b* lamp->energy;
}
void GPU_lamp_update_distance(GPULamp *lamp, float distance, float att1, float att2)
{
lamp->dist = distance;
lamp->att1 = att1;
lamp->att2 = att2;
}
void GPU_lamp_update_spot(GPULamp *lamp, float spotsize, float spotblend)
{
lamp->spotsi= cosf((float)M_PI * spotsize / 360.0f);
lamp->spotbl= (1.0f - lamp->spotsi) * spotblend;
}
static void gpu_lamp_from_blender(Scene *scene, Object *ob, Object *par, Lamp *la, GPULamp *lamp)
{
float temp, angle, pixsize, wsize;
lamp->scene = scene;
lamp->ob = ob;
lamp->par = par;
lamp->la = la;
/* add_render_lamp */
lamp->mode = la->mode;
lamp->type = la->type;
lamp->energy = la->energy;
if (lamp->mode & LA_NEG) lamp->energy= -lamp->energy;
lamp->col[0]= la->r*lamp->energy;
lamp->col[1]= la->g*lamp->energy;
lamp->col[2]= la->b*lamp->energy;
GPU_lamp_update(lamp, ob->lay, (ob->restrictflag & OB_RESTRICT_RENDER), ob->obmat);
lamp->spotsi= la->spotsize;
if (lamp->mode & LA_HALO)
if (lamp->spotsi > 170.0f)
lamp->spotsi = 170.0f;
2011-11-11 12:00:08 +00:00
lamp->spotsi= cosf((float)M_PI*lamp->spotsi/360.0f);
lamp->spotbl= (1.0f - lamp->spotsi)*la->spotblend;
lamp->k= la->k;
lamp->dist= la->dist;
lamp->falloff_type= la->falloff_type;
lamp->att1= la->att1;
lamp->att2= la->att2;
lamp->curfalloff= la->curfalloff;
/* initshadowbuf */
lamp->bias = 0.02f*la->bias;
lamp->size = la->bufsize;
lamp->d= la->clipsta;
lamp->clipend= la->clipend;
/* arbitrary correction for the fact we do no soft transition */
lamp->bias *= 0.25f;
/* makeshadowbuf */
if (lamp->type == LA_SUN) {
wsize = la->shadow_frustum_size;
2012-05-01 20:08:23 +00:00
orthographic_m4(lamp->winmat, -wsize, wsize, -wsize, wsize, lamp->d, lamp->clipend);
}
else {
angle= saacos(lamp->spotsi);
temp= 0.5f*lamp->size*cosf(angle)/sinf(angle);
pixsize= (lamp->d)/temp;
wsize= pixsize*0.5f*lamp->size;
perspective_m4(lamp->winmat, -wsize, wsize, -wsize, wsize, lamp->d, lamp->clipend);
}
}
static void gpu_lamp_shadow_free(GPULamp *lamp)
{
if (lamp->tex) {
GPU_texture_free(lamp->tex);
lamp->tex= NULL;
}
if (lamp->depthtex) {
GPU_texture_free(lamp->depthtex);
lamp->depthtex= NULL;
}
if (lamp->fb) {
GPU_framebuffer_free(lamp->fb);
lamp->fb= NULL;
}
2012-05-01 20:08:23 +00:00
if (lamp->blurtex) {
GPU_texture_free(lamp->blurtex);
lamp->blurtex= NULL;
}
2012-05-01 20:08:23 +00:00
if (lamp->blurfb) {
GPU_framebuffer_free(lamp->blurfb);
lamp->blurfb= NULL;
}
}
GPULamp *GPU_lamp_from_blender(Scene *scene, Object *ob, Object *par)
{
Lamp *la;
GPULamp *lamp;
LinkData *link;
for (link=ob->gpulamp.first; link; link=link->next) {
lamp = (GPULamp*)link->data;
if (lamp->par == par && lamp->scene == scene)
return link->data;
}
lamp = MEM_callocN(sizeof(GPULamp), "GPULamp");
link = MEM_callocN(sizeof(LinkData), "GPULampLink");
link->data = lamp;
BLI_addtail(&ob->gpulamp, link);
la = ob->data;
gpu_lamp_from_blender(scene, ob, par, la, lamp);
if ((la->type==LA_SPOT && (la->mode & LA_SHAD_BUF)) || (la->type==LA_SUN && (la->mode & LA_SHAD_RAY))) {
/* opengl */
lamp->fb = GPU_framebuffer_create();
if (!lamp->fb) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
if (lamp->la->shadowmap_type == LA_SHADMAP_VARIANCE) {
/* Shadow depth map */
lamp->depthtex = GPU_texture_create_depth(lamp->size, lamp->size, NULL);
if (!lamp->depthtex) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
if (!GPU_framebuffer_texture_attach(lamp->fb, lamp->depthtex, NULL)) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
/* Shadow color map */
lamp->tex = GPU_texture_create_vsm_shadow_map(lamp->size, NULL);
if (!lamp->tex) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
if (!GPU_framebuffer_texture_attach(lamp->fb, lamp->tex, NULL)) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
/* FBO and texture for blurring */
lamp->blurfb = GPU_framebuffer_create();
if (!lamp->blurfb) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
lamp->blurtex = GPU_texture_create_vsm_shadow_map(lamp->size*0.5, NULL);
if (!lamp->blurtex) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
if (!GPU_framebuffer_texture_attach(lamp->blurfb, lamp->blurtex, NULL)) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
}
else {
lamp->tex = GPU_texture_create_depth(lamp->size, lamp->size, NULL);
2012-05-01 20:08:23 +00:00
if (!lamp->tex) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
if (!GPU_framebuffer_texture_attach(lamp->fb, lamp->tex, NULL)) {
gpu_lamp_shadow_free(lamp);
return lamp;
}
}
GPU_framebuffer_restore();
lamp->shadow_color[0] = la->shdwr;
lamp->shadow_color[1] = la->shdwg;
lamp->shadow_color[2] = la->shdwb;
}
else {
lamp->shadow_color[0] = 1.0;
lamp->shadow_color[1] = 1.0;
lamp->shadow_color[2] = 1.0;
}
return lamp;
}
void GPU_lamp_free(Object *ob)
{
GPULamp *lamp;
LinkData *link;
LinkData *nlink;
Material *ma;
for (link=ob->gpulamp.first; link; link=link->next) {
lamp = link->data;
while (lamp->materials.first) {
nlink = lamp->materials.first;
ma = nlink->data;
BLI_freelinkN(&lamp->materials, nlink);
if (ma->gpumaterial.first)
GPU_material_free(ma);
}
gpu_lamp_shadow_free(lamp);
MEM_freeN(lamp);
}
BLI_freelistN(&ob->gpulamp);
}
int GPU_lamp_has_shadow_buffer(GPULamp *lamp)
{
return (!(lamp->scene->gm.flag & GAME_GLSL_NO_SHADOWS) &&
!(lamp->scene->gm.flag & GAME_GLSL_NO_LIGHTS) &&
lamp->tex && lamp->fb);
}
void GPU_lamp_update_buffer_mats(GPULamp *lamp)
{
float rangemat[4][4], persmat[4][4];
/* initshadowbuf */
invert_m4_m4(lamp->viewmat, lamp->obmat);
normalize_v3(lamp->viewmat[0]);
normalize_v3(lamp->viewmat[1]);
normalize_v3(lamp->viewmat[2]);
/* makeshadowbuf */
mult_m4_m4m4(persmat, lamp->winmat, lamp->viewmat);
/* opengl depth buffer is range 0.0..1.0 instead of -1.0..1.0 in blender */
unit_m4(rangemat);
rangemat[0][0] = 0.5f;
rangemat[1][1] = 0.5f;
rangemat[2][2] = 0.5f;
rangemat[3][0] = 0.5f;
rangemat[3][1] = 0.5f;
rangemat[3][2] = 0.5f;
mult_m4_m4m4(lamp->persmat, rangemat, persmat);
}
void GPU_lamp_shadow_buffer_bind(GPULamp *lamp, float viewmat[4][4], int *winsize, float winmat[4][4])
{
GPU_lamp_update_buffer_mats(lamp);
/* opengl */
glDisable(GL_SCISSOR_TEST);
GPU_framebuffer_texture_bind(lamp->fb, lamp->tex,
GPU_texture_opengl_width(lamp->tex), GPU_texture_opengl_height(lamp->tex));
2012-05-01 20:08:23 +00:00
if (lamp->la->shadowmap_type == LA_SHADMAP_VARIANCE)
GPU_shader_bind(GPU_shader_get_builtin_shader(GPU_SHADER_VSM_STORE));
/* set matrices */
copy_m4_m4(viewmat, lamp->viewmat);
copy_m4_m4(winmat, lamp->winmat);
*winsize = lamp->size;
}
void GPU_lamp_shadow_buffer_unbind(GPULamp *lamp)
{
2012-05-01 20:08:23 +00:00
if (lamp->la->shadowmap_type == LA_SHADMAP_VARIANCE) {
GPU_shader_unbind(GPU_shader_get_builtin_shader(GPU_SHADER_VSM_STORE));
GPU_framebuffer_blur(lamp->fb, lamp->tex, lamp->blurfb, lamp->blurtex);
}
GPU_framebuffer_texture_unbind(lamp->fb, lamp->tex);
GPU_framebuffer_restore();
glEnable(GL_SCISSOR_TEST);
}
int GPU_lamp_shadow_layer(GPULamp *lamp)
{
if (lamp->fb && lamp->tex && (lamp->mode & (LA_LAYER|LA_LAYER_SHADOW)))
return lamp->lay;
else
return -1;
}
/* export the GLSL shader */
GPUShaderExport *GPU_shader_export(struct Scene *scene, struct Material *ma)
{
static struct {
GPUBuiltin gputype;
GPUDynamicType dynamictype;
GPUDataType datatype;
} builtins[] = {
{ GPU_VIEW_MATRIX, GPU_DYNAMIC_OBJECT_VIEWMAT, GPU_DATA_16F },
{ GPU_INVERSE_VIEW_MATRIX, GPU_DYNAMIC_OBJECT_VIEWIMAT, GPU_DATA_16F },
{ GPU_OBJECT_MATRIX, GPU_DYNAMIC_OBJECT_MAT, GPU_DATA_16F },
{ GPU_INVERSE_OBJECT_MATRIX, GPU_DYNAMIC_OBJECT_IMAT, GPU_DATA_16F },
{ GPU_OBCOLOR, GPU_DYNAMIC_OBJECT_COLOR, GPU_DATA_4F },
2011-12-09 23:26:06 +00:00
{ GPU_AUTO_BUMPSCALE, GPU_DYNAMIC_OBJECT_AUTOBUMPSCALE, GPU_DATA_1F },
{ 0 }
};
GPUShaderExport *shader = NULL;
GPUPass *pass;
GPUInput *input;
GPUMaterial *mat;
GPUInputUniform *uniform;
GPUInputAttribute *attribute;
GLint lastbindcode;
int i, liblen, fraglen;
if (!GPU_glsl_support())
return NULL;
mat = GPU_material_from_blender(scene, ma);
pass = (mat)? mat->pass: NULL;
if (pass && pass->fragmentcode && pass->vertexcode) {
shader = MEM_callocN(sizeof(GPUShaderExport), "GPUShaderExport");
for (input = pass->inputs.first; input; input = input->next) {
uniform = MEM_callocN(sizeof(GPUInputUniform), "GPUInputUniform");
if (input->ima) {
/* image sampler uniform */
uniform->type = GPU_DYNAMIC_SAMPLER_2DIMAGE;
uniform->datatype = GPU_DATA_1I;
uniform->image = input->ima;
uniform->texnumber = input->texid;
BLI_strncpy(uniform->varname, input->shadername, sizeof(uniform->varname));
}
else if (input->tex) {
/* generated buffer */
uniform->texnumber = input->texid;
uniform->datatype = GPU_DATA_1I;
BLI_strncpy(uniform->varname, input->shadername, sizeof(uniform->varname));
switch (input->textype) {
case GPU_SHADOW2D:
uniform->type = GPU_DYNAMIC_SAMPLER_2DSHADOW;
uniform->lamp = input->dynamicdata;
break;
case GPU_TEX2D:
if (GPU_texture_opengl_bindcode(input->tex)) {
uniform->type = GPU_DYNAMIC_SAMPLER_2DBUFFER;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &lastbindcode);
glBindTexture(GL_TEXTURE_2D, GPU_texture_opengl_bindcode(input->tex));
uniform->texsize = GPU_texture_opengl_width(input->tex) * GPU_texture_opengl_height(input->tex);
uniform->texpixels = MEM_mallocN(uniform->texsize*4, "RGBApixels");
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, uniform->texpixels);
glBindTexture(GL_TEXTURE_2D, lastbindcode);
}
break;
}
}
else {
uniform->type = input->dynamictype;
BLI_strncpy(uniform->varname, input->shadername, sizeof(uniform->varname));
switch (input->type) {
case 1:
uniform->datatype = GPU_DATA_1F;
break;
case 2:
uniform->datatype = GPU_DATA_2F;
break;
case 3:
uniform->datatype = GPU_DATA_3F;
break;
case 4:
uniform->datatype = GPU_DATA_4F;
break;
case 9:
uniform->datatype = GPU_DATA_9F;
break;
case 16:
uniform->datatype = GPU_DATA_16F;
break;
}
if (uniform->type >= GPU_DYNAMIC_LAMP_FIRST && uniform->type <= GPU_DYNAMIC_LAMP_LAST)
uniform->lamp = input->dynamicdata;
}
if (uniform->type != GPU_DYNAMIC_NONE)
BLI_addtail(&shader->uniforms, uniform);
else
MEM_freeN(uniform);
}
/* process builtin uniform */
for (i=0; builtins[i].gputype; i++) {
if (mat->builtins & builtins[i].gputype) {
uniform = MEM_callocN(sizeof(GPUInputUniform), "GPUInputUniform");
uniform->type = builtins[i].dynamictype;
uniform->datatype = builtins[i].datatype;
BLI_strncpy(uniform->varname, GPU_builtin_name(builtins[i].gputype), sizeof(uniform->varname));
BLI_addtail(&shader->uniforms, uniform);
}
}
2012-04-21 14:14:58 +00:00
/* now link fragment shader with library shader */
/* TBD: remove the function that are not used in the main function */
liblen = (pass->libcode) ? strlen(pass->libcode) : 0;
fraglen = strlen(pass->fragmentcode);
shader->fragment = (char *)MEM_mallocN(liblen+fraglen+1, "GPUFragShader");
if (pass->libcode)
memcpy(shader->fragment, pass->libcode, liblen);
memcpy(&shader->fragment[liblen], pass->fragmentcode, fraglen);
shader->fragment[liblen+fraglen] = 0;
// export the attribute
for (i=0; i<mat->attribs.totlayer; i++) {
attribute = MEM_callocN(sizeof(GPUInputAttribute), "GPUInputAttribute");
attribute->type = mat->attribs.layer[i].type;
attribute->number = mat->attribs.layer[i].glindex;
BLI_snprintf(attribute->varname, sizeof(attribute->varname), "att%d", mat->attribs.layer[i].attribid);
switch (attribute->type) {
case CD_TANGENT:
attribute->datatype = GPU_DATA_4F;
break;
case CD_MTFACE:
attribute->datatype = GPU_DATA_2F;
attribute->name = mat->attribs.layer[i].name;
break;
case CD_MCOL:
attribute->datatype = GPU_DATA_4UB;
attribute->name = mat->attribs.layer[i].name;
break;
case CD_ORCO:
attribute->datatype = GPU_DATA_3F;
break;
}
if (attribute->datatype != GPU_DATA_NONE)
BLI_addtail(&shader->attributes, attribute);
else
MEM_freeN(attribute);
}
// export the vertex shader
shader->vertex = BLI_strdup(pass->vertexcode);
}
return shader;
}
void GPU_free_shader_export(GPUShaderExport *shader)
{
GPUInputUniform *uniform;
if (shader == NULL)
return;
for (uniform = shader->uniforms.first; uniform; uniform=uniform->next)
if (uniform->texpixels)
MEM_freeN(uniform->texpixels);
BLI_freelistN(&shader->uniforms);
BLI_freelistN(&shader->attributes);
if (shader->vertex)
MEM_freeN(shader->vertex);
if (shader->fragment)
MEM_freeN(shader->fragment);
MEM_freeN(shader);
}