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05517c9bedfdd6afbae0a7d99dbbaba54563303b
blender-archive/intern/cycles/blender/blender_shader.cpp
Brecht Van Lommel 74fd17e9d7 UI/Python: rename Lamps to Lights, to follow more standard terminology. 
Internally it's still mostly named lamps, though some modules like Cycles
were already calling them lights.
2018-07-06 20:06:09 +02:00

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/*
* Copyright 2011-2013 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "render/background.h"
#include "render/graph.h"
#include "render/light.h"
#include "render/nodes.h"
#include "render/osl.h"
#include "render/scene.h"
#include "render/shader.h"
#include "blender/blender_texture.h"
#include "blender/blender_sync.h"
#include "blender/blender_util.h"
#include "util/util_debug.h"
#include "util/util_foreach.h"
#include "util/util_string.h"
#include "util/util_set.h"
#include "util/util_task.h"
CCL_NAMESPACE_BEGIN
typedef map<void*, ShaderInput*> PtrInputMap;
typedef map<void*, ShaderOutput*> PtrOutputMap;
typedef map<string, ConvertNode*> ProxyMap;
/* Find */
void BlenderSync::find_shader(BL::ID& id,
vector<Shader*>& used_shaders,
Shader *default_shader)
{
Shader *shader = (id)? shader_map.find(id): default_shader;
used_shaders.push_back(shader);
shader->tag_used(scene);
}
/* RNA translation utilities */
static VolumeSampling get_volume_sampling(PointerRNA& ptr)
{
return (VolumeSampling)get_enum(ptr,
"volume_sampling",
VOLUME_NUM_SAMPLING,
VOLUME_SAMPLING_DISTANCE);
}
static VolumeInterpolation get_volume_interpolation(PointerRNA& ptr)
{
return (VolumeInterpolation)get_enum(ptr,
"volume_interpolation",
VOLUME_NUM_INTERPOLATION,
VOLUME_INTERPOLATION_LINEAR);
}
static DisplacementMethod get_displacement_method(PointerRNA& ptr)
{
return (DisplacementMethod)get_enum(ptr,
"displacement_method",
DISPLACE_NUM_METHODS,
DISPLACE_BUMP);
}
static int validate_enum_value(int value, int num_values, int default_value)
{
if(value >= num_values) {
return default_value;
}
return value;
}
template<typename NodeType>
static InterpolationType get_image_interpolation(NodeType& b_node)
{
int value = b_node.interpolation();
return (InterpolationType)validate_enum_value(value,
INTERPOLATION_NUM_TYPES,
INTERPOLATION_LINEAR);
}
template<typename NodeType>
static ExtensionType get_image_extension(NodeType& b_node)
{
int value = b_node.extension();
return (ExtensionType)validate_enum_value(value,
EXTENSION_NUM_TYPES,
EXTENSION_REPEAT);
}
/* Graph */
static BL::NodeSocket get_node_output(BL::Node& b_node, const string& name)
{
BL::Node::outputs_iterator b_out;
for(b_node.outputs.begin(b_out); b_out != b_node.outputs.end(); ++b_out)
if(b_out->name() == name)
return *b_out;
assert(0);
return *b_out;
}
static float3 get_node_output_rgba(BL::Node& b_node, const string& name)
{
BL::NodeSocket b_sock = get_node_output(b_node, name);
float value[4];
RNA_float_get_array(&b_sock.ptr, "default_value", value);
return make_float3(value[0], value[1], value[2]);
}
static float get_node_output_value(BL::Node& b_node, const string& name)
{
BL::NodeSocket b_sock = get_node_output(b_node, name);
return RNA_float_get(&b_sock.ptr, "default_value");
}
static float3 get_node_output_vector(BL::Node& b_node, const string& name)
{
BL::NodeSocket b_sock = get_node_output(b_node, name);
float value[3];
RNA_float_get_array(&b_sock.ptr, "default_value", value);
return make_float3(value[0], value[1], value[2]);
}
static SocketType::Type convert_socket_type(BL::NodeSocket& b_socket)
{
switch(b_socket.type()) {
case BL::NodeSocket::type_VALUE:
return SocketType::FLOAT;
case BL::NodeSocket::type_INT:
return SocketType::INT;
case BL::NodeSocket::type_VECTOR:
return SocketType::VECTOR;
case BL::NodeSocket::type_RGBA:
return SocketType::COLOR;
case BL::NodeSocket::type_STRING:
return SocketType::STRING;
case BL::NodeSocket::type_SHADER:
return SocketType::CLOSURE;
default:
return SocketType::UNDEFINED;
}
}
static void set_default_value(ShaderInput *input,
BL::NodeSocket& b_sock,
BL::BlendData& b_data,
BL::ID& b_id)
{
Node *node = input->parent;
const SocketType& socket = input->socket_type;
/* copy values for non linked inputs */
switch(input->type()) {
case SocketType::FLOAT: {
node->set(socket, get_float(b_sock.ptr, "default_value"));
break;
}
case SocketType::INT: {
node->set(socket, get_int(b_sock.ptr, "default_value"));
break;
}
case SocketType::COLOR: {
node->set(socket, float4_to_float3(get_float4(b_sock.ptr, "default_value")));
break;
}
case SocketType::NORMAL:
case SocketType::POINT:
case SocketType::VECTOR: {
node->set(socket, get_float3(b_sock.ptr, "default_value"));
break;
}
case SocketType::STRING: {
node->set(socket, (ustring)blender_absolute_path(b_data, b_id, get_string(b_sock.ptr, "default_value")));
break;
}
default:
break;
}
}
static void get_tex_mapping(TextureMapping *mapping, BL::TexMapping& b_mapping)
{
if(!b_mapping)
return;
mapping->translation = get_float3(b_mapping.translation());
mapping->rotation = get_float3(b_mapping.rotation());
mapping->scale = get_float3(b_mapping.scale());
mapping->type = (TextureMapping::Type)b_mapping.vector_type();
mapping->x_mapping = (TextureMapping::Mapping)b_mapping.mapping_x();
mapping->y_mapping = (TextureMapping::Mapping)b_mapping.mapping_y();
mapping->z_mapping = (TextureMapping::Mapping)b_mapping.mapping_z();
}
static void get_tex_mapping(TextureMapping *mapping,
BL::ShaderNodeMapping& b_mapping)
{
if(!b_mapping)
return;
mapping->translation = get_float3(b_mapping.translation());
mapping->rotation = get_float3(b_mapping.rotation());
mapping->scale = get_float3(b_mapping.scale());
mapping->type = (TextureMapping::Type)b_mapping.vector_type();
mapping->use_minmax = b_mapping.use_min() || b_mapping.use_max();
if(b_mapping.use_min())
mapping->min = get_float3(b_mapping.min());
if(b_mapping.use_max())
mapping->max = get_float3(b_mapping.max());
}
static ShaderNode *add_node(Scene *scene,
BL::RenderEngine& b_engine,
BL::BlendData& b_data,
BL::Depsgraph& b_depsgraph,
BL::Scene& b_scene,
ShaderGraph *graph,
BL::ShaderNodeTree& b_ntree,
BL::ShaderNode& b_node)
{
ShaderNode *node = NULL;
/* existing blender nodes */
if(b_node.is_a(&RNA_ShaderNodeRGBCurve)) {
BL::ShaderNodeRGBCurve b_curve_node(b_node);
BL::CurveMapping mapping(b_curve_node.mapping());
RGBCurvesNode *curves = new RGBCurvesNode();
curvemapping_color_to_array(mapping,
curves->curves,
RAMP_TABLE_SIZE,
true);
curvemapping_minmax(mapping, true, &curves->min_x, &curves->max_x);
node = curves;
}
if(b_node.is_a(&RNA_ShaderNodeVectorCurve)) {
BL::ShaderNodeVectorCurve b_curve_node(b_node);
BL::CurveMapping mapping(b_curve_node.mapping());
VectorCurvesNode *curves = new VectorCurvesNode();
curvemapping_color_to_array(mapping,
curves->curves,
RAMP_TABLE_SIZE,
false);
curvemapping_minmax(mapping, false, &curves->min_x, &curves->max_x);
node = curves;
}
else if(b_node.is_a(&RNA_ShaderNodeValToRGB)) {
RGBRampNode *ramp = new RGBRampNode();
BL::ShaderNodeValToRGB b_ramp_node(b_node);
BL::ColorRamp b_color_ramp(b_ramp_node.color_ramp());
colorramp_to_array(b_color_ramp, ramp->ramp, ramp->ramp_alpha, RAMP_TABLE_SIZE);
ramp->interpolate = b_color_ramp.interpolation() != BL::ColorRamp::interpolation_CONSTANT;
node = ramp;
}
else if(b_node.is_a(&RNA_ShaderNodeRGB)) {
ColorNode *color = new ColorNode();
color->value = get_node_output_rgba(b_node, "Color");
node = color;
}
else if(b_node.is_a(&RNA_ShaderNodeValue)) {
ValueNode *value = new ValueNode();
value->value = get_node_output_value(b_node, "Value");
node = value;
}
else if(b_node.is_a(&RNA_ShaderNodeCameraData)) {
node = new CameraNode();
}
else if(b_node.is_a(&RNA_ShaderNodeInvert)) {
node = new InvertNode();
}
else if(b_node.is_a(&RNA_ShaderNodeGamma)) {
node = new GammaNode();
}
else if(b_node.is_a(&RNA_ShaderNodeBrightContrast)) {
node = new BrightContrastNode();
}
else if(b_node.is_a(&RNA_ShaderNodeMixRGB)) {
BL::ShaderNodeMixRGB b_mix_node(b_node);
MixNode *mix = new MixNode();
mix->type = (NodeMix)b_mix_node.blend_type();
mix->use_clamp = b_mix_node.use_clamp();
node = mix;
}
else if(b_node.is_a(&RNA_ShaderNodeSeparateRGB)) {
node = new SeparateRGBNode();
}
else if(b_node.is_a(&RNA_ShaderNodeCombineRGB)) {
node = new CombineRGBNode();
}
else if(b_node.is_a(&RNA_ShaderNodeSeparateHSV)) {
node = new SeparateHSVNode();
}
else if(b_node.is_a(&RNA_ShaderNodeCombineHSV)) {
node = new CombineHSVNode();
}
else if(b_node.is_a(&RNA_ShaderNodeSeparateXYZ)) {
node = new SeparateXYZNode();
}
else if(b_node.is_a(&RNA_ShaderNodeCombineXYZ)) {
node = new CombineXYZNode();
}
else if(b_node.is_a(&RNA_ShaderNodeHueSaturation)) {
node = new HSVNode();
}
else if(b_node.is_a(&RNA_ShaderNodeRGBToBW)) {
node = new RGBToBWNode();
}
else if(b_node.is_a(&RNA_ShaderNodeMath)) {
BL::ShaderNodeMath b_math_node(b_node);
MathNode *math = new MathNode();
math->type = (NodeMath)b_math_node.operation();
math->use_clamp = b_math_node.use_clamp();
node = math;
}
else if(b_node.is_a(&RNA_ShaderNodeVectorMath)) {
BL::ShaderNodeVectorMath b_vector_math_node(b_node);
VectorMathNode *vmath = new VectorMathNode();
vmath->type = (NodeVectorMath)b_vector_math_node.operation();
node = vmath;
}
else if(b_node.is_a(&RNA_ShaderNodeVectorTransform)) {
BL::ShaderNodeVectorTransform b_vector_transform_node(b_node);
VectorTransformNode *vtransform = new VectorTransformNode();
vtransform->type = (NodeVectorTransformType)b_vector_transform_node.vector_type();
vtransform->convert_from = (NodeVectorTransformConvertSpace)b_vector_transform_node.convert_from();
vtransform->convert_to = (NodeVectorTransformConvertSpace)b_vector_transform_node.convert_to();
node = vtransform;
}
else if(b_node.is_a(&RNA_ShaderNodeNormal)) {
BL::Node::outputs_iterator out_it;
b_node.outputs.begin(out_it);
NormalNode *norm = new NormalNode();
norm->direction = get_node_output_vector(b_node, "Normal");
node = norm;
}
else if(b_node.is_a(&RNA_ShaderNodeMapping)) {
BL::ShaderNodeMapping b_mapping_node(b_node);
MappingNode *mapping = new MappingNode();
get_tex_mapping(&mapping->tex_mapping, b_mapping_node);
node = mapping;
}
else if(b_node.is_a(&RNA_ShaderNodeFresnel)) {
node = new FresnelNode();
}
else if(b_node.is_a(&RNA_ShaderNodeLayerWeight)) {
node = new LayerWeightNode();
}
else if(b_node.is_a(&RNA_ShaderNodeAddShader)) {
node = new AddClosureNode();
}
else if(b_node.is_a(&RNA_ShaderNodeMixShader)) {
node = new MixClosureNode();
}
else if(b_node.is_a(&RNA_ShaderNodeAttribute)) {
BL::ShaderNodeAttribute b_attr_node(b_node);
AttributeNode *attr = new AttributeNode();
attr->attribute = b_attr_node.attribute_name();
node = attr;
}
else if(b_node.is_a(&RNA_ShaderNodeBackground)) {
node = new BackgroundNode();
}
else if(b_node.is_a(&RNA_ShaderNodeHoldout)) {
node = new HoldoutNode();
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfAnisotropic)) {
BL::ShaderNodeBsdfAnisotropic b_aniso_node(b_node);
AnisotropicBsdfNode *aniso = new AnisotropicBsdfNode();
switch(b_aniso_node.distribution()) {
case BL::ShaderNodeBsdfAnisotropic::distribution_BECKMANN:
aniso->distribution = CLOSURE_BSDF_MICROFACET_BECKMANN_ANISO_ID;
break;
case BL::ShaderNodeBsdfAnisotropic::distribution_GGX:
aniso->distribution = CLOSURE_BSDF_MICROFACET_GGX_ANISO_ID;
break;
case BL::ShaderNodeBsdfAnisotropic::distribution_MULTI_GGX:
aniso->distribution = CLOSURE_BSDF_MICROFACET_MULTI_GGX_ANISO_ID;
break;
case BL::ShaderNodeBsdfAnisotropic::distribution_ASHIKHMIN_SHIRLEY:
aniso->distribution = CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ANISO_ID;
break;
}
node = aniso;
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfDiffuse)) {
node = new DiffuseBsdfNode();
}
else if(b_node.is_a(&RNA_ShaderNodeSubsurfaceScattering)) {
BL::ShaderNodeSubsurfaceScattering b_subsurface_node(b_node);
SubsurfaceScatteringNode *subsurface = new SubsurfaceScatteringNode();
switch(b_subsurface_node.falloff()) {
case BL::ShaderNodeSubsurfaceScattering::falloff_CUBIC:
subsurface->falloff = CLOSURE_BSSRDF_CUBIC_ID;
break;
case BL::ShaderNodeSubsurfaceScattering::falloff_GAUSSIAN:
subsurface->falloff = CLOSURE_BSSRDF_GAUSSIAN_ID;
break;
case BL::ShaderNodeSubsurfaceScattering::falloff_BURLEY:
subsurface->falloff = CLOSURE_BSSRDF_BURLEY_ID;
break;
case BL::ShaderNodeSubsurfaceScattering::falloff_RANDOM_WALK:
subsurface->falloff = CLOSURE_BSSRDF_RANDOM_WALK_ID;
break;
}
node = subsurface;
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfGlossy)) {
BL::ShaderNodeBsdfGlossy b_glossy_node(b_node);
GlossyBsdfNode *glossy = new GlossyBsdfNode();
switch(b_glossy_node.distribution()) {
case BL::ShaderNodeBsdfGlossy::distribution_SHARP:
glossy->distribution = CLOSURE_BSDF_REFLECTION_ID;
break;
case BL::ShaderNodeBsdfGlossy::distribution_BECKMANN:
glossy->distribution = CLOSURE_BSDF_MICROFACET_BECKMANN_ID;
break;
case BL::ShaderNodeBsdfGlossy::distribution_GGX:
glossy->distribution = CLOSURE_BSDF_MICROFACET_GGX_ID;
break;
case BL::ShaderNodeBsdfGlossy::distribution_ASHIKHMIN_SHIRLEY:
glossy->distribution = CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID;
break;
case BL::ShaderNodeBsdfGlossy::distribution_MULTI_GGX:
glossy->distribution = CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID;
break;
}
node = glossy;
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfGlass)) {
BL::ShaderNodeBsdfGlass b_glass_node(b_node);
GlassBsdfNode *glass = new GlassBsdfNode();
switch(b_glass_node.distribution()) {
case BL::ShaderNodeBsdfGlass::distribution_SHARP:
glass->distribution = CLOSURE_BSDF_SHARP_GLASS_ID;
break;
case BL::ShaderNodeBsdfGlass::distribution_BECKMANN:
glass->distribution = CLOSURE_BSDF_MICROFACET_BECKMANN_GLASS_ID;
break;
case BL::ShaderNodeBsdfGlass::distribution_GGX:
glass->distribution = CLOSURE_BSDF_MICROFACET_GGX_GLASS_ID;
break;
case BL::ShaderNodeBsdfGlass::distribution_MULTI_GGX:
glass->distribution = CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID;
break;
}
node = glass;
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfRefraction)) {
BL::ShaderNodeBsdfRefraction b_refraction_node(b_node);
RefractionBsdfNode *refraction = new RefractionBsdfNode();
switch(b_refraction_node.distribution()) {
case BL::ShaderNodeBsdfRefraction::distribution_SHARP:
refraction->distribution = CLOSURE_BSDF_REFRACTION_ID;
break;
case BL::ShaderNodeBsdfRefraction::distribution_BECKMANN:
refraction->distribution = CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID;
break;
case BL::ShaderNodeBsdfRefraction::distribution_GGX:
refraction->distribution = CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID;
break;
}
node = refraction;
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfToon)) {
BL::ShaderNodeBsdfToon b_toon_node(b_node);
ToonBsdfNode *toon = new ToonBsdfNode();
switch(b_toon_node.component()) {
case BL::ShaderNodeBsdfToon::component_DIFFUSE:
toon->component = CLOSURE_BSDF_DIFFUSE_TOON_ID;
break;
case BL::ShaderNodeBsdfToon::component_GLOSSY:
toon->component = CLOSURE_BSDF_GLOSSY_TOON_ID;
break;
}
node = toon;
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfHair)) {
BL::ShaderNodeBsdfHair b_hair_node(b_node);
HairBsdfNode *hair = new HairBsdfNode();
switch(b_hair_node.component()) {
case BL::ShaderNodeBsdfHair::component_Reflection:
hair->component = CLOSURE_BSDF_HAIR_REFLECTION_ID;
break;
case BL::ShaderNodeBsdfHair::component_Transmission:
hair->component = CLOSURE_BSDF_HAIR_TRANSMISSION_ID;
break;
}
node = hair;
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfPrincipled)) {
BL::ShaderNodeBsdfPrincipled b_principled_node(b_node);
PrincipledBsdfNode *principled = new PrincipledBsdfNode();
switch (b_principled_node.distribution()) {
case BL::ShaderNodeBsdfPrincipled::distribution_GGX:
principled->distribution = CLOSURE_BSDF_MICROFACET_GGX_GLASS_ID;
break;
case BL::ShaderNodeBsdfPrincipled::distribution_MULTI_GGX:
principled->distribution = CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID;
break;
}
switch (b_principled_node.subsurface_method()) {
case BL::ShaderNodeBsdfPrincipled::subsurface_method_BURLEY:
principled->subsurface_method = CLOSURE_BSSRDF_PRINCIPLED_ID;
break;
case BL::ShaderNodeBsdfPrincipled::subsurface_method_RANDOM_WALK:
principled->subsurface_method = CLOSURE_BSSRDF_PRINCIPLED_RANDOM_WALK_ID;
break;
}
node = principled;
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfTranslucent)) {
node = new TranslucentBsdfNode();
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfTransparent)) {
node = new TransparentBsdfNode();
}
else if(b_node.is_a(&RNA_ShaderNodeBsdfVelvet)) {
node = new VelvetBsdfNode();
}
else if(b_node.is_a(&RNA_ShaderNodeEmission)) {
node = new EmissionNode();
}
else if(b_node.is_a(&RNA_ShaderNodeAmbientOcclusion)) {
BL::ShaderNodeAmbientOcclusion b_ao_node(b_node);
AmbientOcclusionNode *ao = new AmbientOcclusionNode();
ao->samples = b_ao_node.samples();
ao->inside = b_ao_node.inside();
ao->only_local = b_ao_node.only_local();
node = ao;
}
else if(b_node.is_a(&RNA_ShaderNodeVolumeScatter)) {
node = new ScatterVolumeNode();
}
else if(b_node.is_a(&RNA_ShaderNodeVolumeAbsorption)) {
node = new AbsorptionVolumeNode();
}
else if(b_node.is_a(&RNA_ShaderNodeVolumePrincipled)) {
PrincipledVolumeNode *principled = new PrincipledVolumeNode();
node = principled;
}
else if(b_node.is_a(&RNA_ShaderNodeNewGeometry)) {
node = new GeometryNode();
}
else if(b_node.is_a(&RNA_ShaderNodeWireframe)) {
BL::ShaderNodeWireframe b_wireframe_node(b_node);
WireframeNode *wire = new WireframeNode();
wire->use_pixel_size = b_wireframe_node.use_pixel_size();
node = wire;
}
else if(b_node.is_a(&RNA_ShaderNodeWavelength)) {
node = new WavelengthNode();
}
else if(b_node.is_a(&RNA_ShaderNodeBlackbody)) {
node = new BlackbodyNode();
}
else if(b_node.is_a(&RNA_ShaderNodeLightPath)) {
node = new LightPathNode();
}
else if(b_node.is_a(&RNA_ShaderNodeLightFalloff)) {
node = new LightFalloffNode();
}
else if(b_node.is_a(&RNA_ShaderNodeObjectInfo)) {
node = new ObjectInfoNode();
}
else if(b_node.is_a(&RNA_ShaderNodeParticleInfo)) {
node = new ParticleInfoNode();
}
else if(b_node.is_a(&RNA_ShaderNodeHairInfo)) {
node = new HairInfoNode();
}
else if(b_node.is_a(&RNA_ShaderNodeBump)) {
BL::ShaderNodeBump b_bump_node(b_node);
BumpNode *bump = new BumpNode();
bump->invert = b_bump_node.invert();
node = bump;
}
else if(b_node.is_a(&RNA_ShaderNodeScript)) {
#ifdef WITH_OSL
if(scene->shader_manager->use_osl()) {
/* create script node */
BL::ShaderNodeScript b_script_node(b_node);
OSLShaderManager *manager = (OSLShaderManager*)scene->shader_manager;
string bytecode_hash = b_script_node.bytecode_hash();
if(!bytecode_hash.empty()) {
node = manager->osl_node("", bytecode_hash, b_script_node.bytecode());
}
else {
string absolute_filepath = blender_absolute_path(b_data, b_ntree, b_script_node.filepath());
node = manager->osl_node(absolute_filepath, "");
}
}
#else
(void)b_data;
(void)b_ntree;
#endif
}
else if(b_node.is_a(&RNA_ShaderNodeTexImage)) {
BL::ShaderNodeTexImage b_image_node(b_node);
BL::Image b_image(b_image_node.image());
BL::ImageUser b_image_user(b_image_node.image_user());
ImageTextureNode *image = new ImageTextureNode();
if(b_image) {
/* builtin images will use callback-based reading because
* they could only be loaded correct from blender side
*/
bool is_builtin = b_image.packed_file() ||
b_image.source() == BL::Image::source_GENERATED ||
b_image.source() == BL::Image::source_MOVIE ||
(b_engine.is_preview() &&
b_image.source() != BL::Image::source_SEQUENCE);
if(is_builtin) {
/* for builtin images we're using image datablock name to find an image to
* read pixels from later
*
* also store frame number as well, so there's no differences in handling
* builtin names for packed images and movies
*/
int scene_frame = b_scene.frame_current();
int image_frame = image_user_frame_number(b_image_user,
scene_frame);
image->filename = b_image.name() + "@" + string_printf("%d", image_frame);
image->builtin_data = b_image.ptr.data;
}
else {
image->filename = image_user_file_path(b_image_user,
b_image,
b_scene.frame_current());
image->builtin_data = NULL;
}
image->animated = b_image_node.image_user().use_auto_refresh();
image->use_alpha = b_image.use_alpha();
/* TODO: restore */
/* TODO(sergey): Does not work properly when we change builtin type. */
#if 0
if(b_image.is_updated()) {
scene->image_manager->tag_reload_image(
image->filename.string(),
image->builtin_data,
get_image_interpolation(b_image_node),
get_image_extension(b_image_node),
image->use_alpha);
}
#endif
}
image->color_space = (NodeImageColorSpace)b_image_node.color_space();
image->projection = (NodeImageProjection)b_image_node.projection();
image->interpolation = get_image_interpolation(b_image_node);
image->extension = get_image_extension(b_image_node);
image->projection_blend = b_image_node.projection_blend();
BL::TexMapping b_texture_mapping(b_image_node.texture_mapping());
get_tex_mapping(&image->tex_mapping, b_texture_mapping);
node = image;
}
else if(b_node.is_a(&RNA_ShaderNodeTexEnvironment)) {
BL::ShaderNodeTexEnvironment b_env_node(b_node);
BL::Image b_image(b_env_node.image());
BL::ImageUser b_image_user(b_env_node.image_user());
EnvironmentTextureNode *env = new EnvironmentTextureNode();
if(b_image) {
bool is_builtin = b_image.packed_file() ||
b_image.source() == BL::Image::source_GENERATED ||
b_image.source() == BL::Image::source_MOVIE ||
(b_engine.is_preview() &&
b_image.source() != BL::Image::source_SEQUENCE);
if(is_builtin) {
int scene_frame = b_scene.frame_current();
int image_frame = image_user_frame_number(b_image_user,
scene_frame);
env->filename = b_image.name() + "@" + string_printf("%d", image_frame);
env->builtin_data = b_image.ptr.data;
}
else {
env->filename = image_user_file_path(b_image_user,
b_image,
b_scene.frame_current());
env->builtin_data = NULL;
}
env->animated = b_env_node.image_user().use_auto_refresh();
env->use_alpha = b_image.use_alpha();
/* TODO: restore */
/* TODO(sergey): Does not work properly when we change builtin type. */
#if 0
if(b_image.is_updated()) {
scene->image_manager->tag_reload_image(
env->filename.string(),
env->builtin_data,
get_image_interpolation(b_env_node),
EXTENSION_REPEAT,
env->use_alpha);
}
#endif
}
env->color_space = (NodeImageColorSpace)b_env_node.color_space();
env->interpolation = get_image_interpolation(b_env_node);
env->projection = (NodeEnvironmentProjection)b_env_node.projection();
BL::TexMapping b_texture_mapping(b_env_node.texture_mapping());
get_tex_mapping(&env->tex_mapping, b_texture_mapping);
node = env;
}
else if(b_node.is_a(&RNA_ShaderNodeTexGradient)) {
BL::ShaderNodeTexGradient b_gradient_node(b_node);
GradientTextureNode *gradient = new GradientTextureNode();
gradient->type = (NodeGradientType)b_gradient_node.gradient_type();
BL::TexMapping b_texture_mapping(b_gradient_node.texture_mapping());
get_tex_mapping(&gradient->tex_mapping, b_texture_mapping);
node = gradient;
}
else if(b_node.is_a(&RNA_ShaderNodeTexVoronoi)) {
BL::ShaderNodeTexVoronoi b_voronoi_node(b_node);
VoronoiTextureNode *voronoi = new VoronoiTextureNode();
voronoi->coloring = (NodeVoronoiColoring)b_voronoi_node.coloring();
BL::TexMapping b_texture_mapping(b_voronoi_node.texture_mapping());
get_tex_mapping(&voronoi->tex_mapping, b_texture_mapping);
node = voronoi;
}
else if(b_node.is_a(&RNA_ShaderNodeTexMagic)) {
BL::ShaderNodeTexMagic b_magic_node(b_node);
MagicTextureNode *magic = new MagicTextureNode();
magic->depth = b_magic_node.turbulence_depth();
BL::TexMapping b_texture_mapping(b_magic_node.texture_mapping());
get_tex_mapping(&magic->tex_mapping, b_texture_mapping);
node = magic;
}
else if(b_node.is_a(&RNA_ShaderNodeTexWave)) {
BL::ShaderNodeTexWave b_wave_node(b_node);
WaveTextureNode *wave = new WaveTextureNode();
wave->type = (NodeWaveType)b_wave_node.wave_type();
wave->profile = (NodeWaveProfile)b_wave_node.wave_profile();
BL::TexMapping b_texture_mapping(b_wave_node.texture_mapping());
get_tex_mapping(&wave->tex_mapping, b_texture_mapping);
node = wave;
}
else if(b_node.is_a(&RNA_ShaderNodeTexChecker)) {
BL::ShaderNodeTexChecker b_checker_node(b_node);
CheckerTextureNode *checker = new CheckerTextureNode();
BL::TexMapping b_texture_mapping(b_checker_node.texture_mapping());
get_tex_mapping(&checker->tex_mapping, b_texture_mapping);
node = checker;
}
else if(b_node.is_a(&RNA_ShaderNodeTexBrick)) {
BL::ShaderNodeTexBrick b_brick_node(b_node);
BrickTextureNode *brick = new BrickTextureNode();
brick->offset = b_brick_node.offset();
brick->offset_frequency = b_brick_node.offset_frequency();
brick->squash = b_brick_node.squash();
brick->squash_frequency = b_brick_node.squash_frequency();
BL::TexMapping b_texture_mapping(b_brick_node.texture_mapping());
get_tex_mapping(&brick->tex_mapping, b_texture_mapping);
node = brick;
}
else if(b_node.is_a(&RNA_ShaderNodeTexNoise)) {
BL::ShaderNodeTexNoise b_noise_node(b_node);
NoiseTextureNode *noise = new NoiseTextureNode();
BL::TexMapping b_texture_mapping(b_noise_node.texture_mapping());
get_tex_mapping(&noise->tex_mapping, b_texture_mapping);
node = noise;
}
else if(b_node.is_a(&RNA_ShaderNodeTexMusgrave)) {
BL::ShaderNodeTexMusgrave b_musgrave_node(b_node);
MusgraveTextureNode *musgrave = new MusgraveTextureNode();
musgrave->type = (NodeMusgraveType)b_musgrave_node.musgrave_type();
BL::TexMapping b_texture_mapping(b_musgrave_node.texture_mapping());
get_tex_mapping(&musgrave->tex_mapping, b_texture_mapping);
node = musgrave;
}
else if(b_node.is_a(&RNA_ShaderNodeTexCoord)) {
BL::ShaderNodeTexCoord b_tex_coord_node(b_node);
TextureCoordinateNode *tex_coord = new TextureCoordinateNode();
tex_coord->from_dupli = b_tex_coord_node.from_dupli();
if(b_tex_coord_node.object()) {
tex_coord->use_transform = true;
tex_coord->ob_tfm = get_transform(b_tex_coord_node.object().matrix_world());
}
node = tex_coord;
}
else if(b_node.is_a(&RNA_ShaderNodeTexSky)) {
BL::ShaderNodeTexSky b_sky_node(b_node);
SkyTextureNode *sky = new SkyTextureNode();
sky->type = (NodeSkyType)b_sky_node.sky_type();
sky->sun_direction = normalize(get_float3(b_sky_node.sun_direction()));
sky->turbidity = b_sky_node.turbidity();
sky->ground_albedo = b_sky_node.ground_albedo();
BL::TexMapping b_texture_mapping(b_sky_node.texture_mapping());
get_tex_mapping(&sky->tex_mapping, b_texture_mapping);
node = sky;
}
else if(b_node.is_a(&RNA_ShaderNodeTexIES)) {
BL::ShaderNodeTexIES b_ies_node(b_node);
IESLightNode *ies = new IESLightNode();
switch(b_ies_node.mode()) {
case BL::ShaderNodeTexIES::mode_EXTERNAL:
ies->filename = blender_absolute_path(b_data, b_ntree, b_ies_node.filepath());
break;
case BL::ShaderNodeTexIES::mode_INTERNAL:
ies->ies = get_text_datablock_content(b_ies_node.ies().ptr);
if(ies->ies.empty()) {
ies->ies = "\n";
}
break;
}
node = ies;
}
else if(b_node.is_a(&RNA_ShaderNodeNormalMap)) {
BL::ShaderNodeNormalMap b_normal_map_node(b_node);
NormalMapNode *nmap = new NormalMapNode();
nmap->space = (NodeNormalMapSpace)b_normal_map_node.space();
nmap->attribute = b_normal_map_node.uv_map();
node = nmap;
}
else if(b_node.is_a(&RNA_ShaderNodeTangent)) {
BL::ShaderNodeTangent b_tangent_node(b_node);
TangentNode *tangent = new TangentNode();
tangent->direction_type = (NodeTangentDirectionType)b_tangent_node.direction_type();
tangent->axis = (NodeTangentAxis)b_tangent_node.axis();
tangent->attribute = b_tangent_node.uv_map();
node = tangent;
}
else if(b_node.is_a(&RNA_ShaderNodeUVMap)) {
BL::ShaderNodeUVMap b_uvmap_node(b_node);
UVMapNode *uvm = new UVMapNode();
uvm->attribute = b_uvmap_node.uv_map();
uvm->from_dupli = b_uvmap_node.from_dupli();
node = uvm;
}
else if(b_node.is_a(&RNA_ShaderNodeTexPointDensity)) {
BL::ShaderNodeTexPointDensity b_point_density_node(b_node);
PointDensityTextureNode *point_density = new PointDensityTextureNode();
point_density->filename = b_point_density_node.name();
point_density->space = (NodeTexVoxelSpace)b_point_density_node.space();
point_density->interpolation = get_image_interpolation(b_point_density_node);
point_density->builtin_data = b_point_density_node.ptr.data;
point_density->image_manager = scene->image_manager;
/* TODO(sergey): Use more proper update flag. */
if(true) {
point_density->add_image();
b_point_density_node.cache_point_density(b_depsgraph);
scene->image_manager->tag_reload_image(
point_density->filename.string(),
point_density->builtin_data,
point_density->interpolation,
EXTENSION_CLIP,
true);
}
node = point_density;
/* Transformation form world space to texture space.
*
* NOTE: Do this after the texture is cached, this is because getting
* min/max will need to access this cache.
*/
BL::Object b_ob(b_point_density_node.object());
if(b_ob) {
float3 loc, size;
point_density_texture_space(b_depsgraph,
b_point_density_node,
loc,
size);
point_density->tfm =
transform_translate(-loc) * transform_scale(size) *
transform_inverse(get_transform(b_ob.matrix_world()));
}
}
else if(b_node.is_a(&RNA_ShaderNodeBevel)) {
BL::ShaderNodeBevel b_bevel_node(b_node);
BevelNode *bevel = new BevelNode();
bevel->samples = b_bevel_node.samples();
node = bevel;
}
else if(b_node.is_a(&RNA_ShaderNodeDisplacement)) {
BL::ShaderNodeDisplacement b_disp_node(b_node);
DisplacementNode *disp = new DisplacementNode();
disp->space = (NodeNormalMapSpace)b_disp_node.space();
node = disp;
}
else if(b_node.is_a(&RNA_ShaderNodeVectorDisplacement)) {
BL::ShaderNodeVectorDisplacement b_disp_node(b_node);
VectorDisplacementNode *disp = new VectorDisplacementNode();
disp->space = (NodeNormalMapSpace)b_disp_node.space();
disp->attribute = "";
node = disp;
}
if(node) {
node->name = b_node.name();
graph->add(node);
}
return node;
}
static bool node_use_modified_socket_name(ShaderNode *node)
{
if(node->special_type == SHADER_SPECIAL_TYPE_SCRIPT)
return false;
return true;
}
static ShaderInput *node_find_input_by_name(ShaderNode *node,
BL::Node& b_node,
BL::NodeSocket& b_socket)
{
string name = b_socket.name();
if(node_use_modified_socket_name(node)) {
BL::Node::inputs_iterator b_input;
bool found = false;
int counter = 0, total = 0;
for(b_node.inputs.begin(b_input); b_input != b_node.inputs.end(); ++b_input) {
if(b_input->name() == name) {
if(!found)
counter++;
total++;
}
if(b_input->ptr.data == b_socket.ptr.data)
found = true;
}
/* rename if needed */
if(name == "Shader")
name = "Closure";
if(total > 1)
name = string_printf("%s%d", name.c_str(), counter);
}
return node->input(name.c_str());
}
static ShaderOutput *node_find_output_by_name(ShaderNode *node,
BL::Node& b_node,
BL::NodeSocket& b_socket)
{
string name = b_socket.name();
if(node_use_modified_socket_name(node)) {
BL::Node::outputs_iterator b_output;
bool found = false;
int counter = 0, total = 0;
for(b_node.outputs.begin(b_output); b_output != b_node.outputs.end(); ++b_output) {
if(b_output->name() == name) {
if(!found)
counter++;
total++;
}
if(b_output->ptr.data == b_socket.ptr.data)
found = true;
}
/* rename if needed */
if(name == "Shader")
name = "Closure";
if(total > 1)
name = string_printf("%s%d", name.c_str(), counter);
}
return node->output(name.c_str());
}
static void add_nodes(Scene *scene,
BL::RenderEngine& b_engine,
BL::BlendData& b_data,
BL::Depsgraph& b_depsgraph,
BL::Scene& b_scene,
ShaderGraph *graph,
BL::ShaderNodeTree& b_ntree,
const ProxyMap &proxy_input_map,
const ProxyMap &proxy_output_map)
{
/* add nodes */
BL::ShaderNodeTree::nodes_iterator b_node;
PtrInputMap input_map;
PtrOutputMap output_map;
BL::Node::inputs_iterator b_input;
BL::Node::outputs_iterator b_output;
/* find the node to use for output if there are multiple */
BL::ShaderNode output_node = b_ntree.get_output_node(BL::ShaderNodeOutputMaterial::target_CYCLES);
/* add nodes */
for(b_ntree.nodes.begin(b_node); b_node != b_ntree.nodes.end(); ++b_node) {
if(b_node->mute() || b_node->is_a(&RNA_NodeReroute)) {
/* replace muted node with internal links */
BL::Node::internal_links_iterator b_link;
for(b_node->internal_links.begin(b_link); b_link != b_node->internal_links.end(); ++b_link) {
BL::NodeSocket to_socket(b_link->to_socket());
SocketType::Type to_socket_type = convert_socket_type(to_socket);
if (to_socket_type == SocketType::UNDEFINED) {
continue;
}
ConvertNode *proxy = new ConvertNode(to_socket_type, to_socket_type, true);
input_map[b_link->from_socket().ptr.data] = proxy->inputs[0];
output_map[b_link->to_socket().ptr.data] = proxy->outputs[0];
graph->add(proxy);
}
}
else if(b_node->is_a(&RNA_ShaderNodeGroup) || b_node->is_a(&RNA_NodeCustomGroup)) {
BL::ShaderNodeTree b_group_ntree(PointerRNA_NULL);
if(b_node->is_a(&RNA_ShaderNodeGroup))
b_group_ntree = BL::ShaderNodeTree(((BL::NodeGroup)(*b_node)).node_tree());
else
b_group_ntree = BL::ShaderNodeTree(((BL::NodeCustomGroup)(*b_node)).node_tree());
ProxyMap group_proxy_input_map, group_proxy_output_map;
/* Add a proxy node for each socket
* Do this even if the node group has no internal tree,
* so that links have something to connect to and assert won't fail.
*/
for(b_node->inputs.begin(b_input); b_input != b_node->inputs.end(); ++b_input) {
SocketType::Type input_type = convert_socket_type(*b_input);
if (input_type == SocketType::UNDEFINED) {
continue;
}
ConvertNode *proxy = new ConvertNode(input_type, input_type, true);
graph->add(proxy);
/* register the proxy node for internal binding */
group_proxy_input_map[b_input->identifier()] = proxy;
input_map[b_input->ptr.data] = proxy->inputs[0];
set_default_value(proxy->inputs[0], *b_input, b_data, b_ntree);
}
for(b_node->outputs.begin(b_output); b_output != b_node->outputs.end(); ++b_output) {
SocketType::Type output_type = convert_socket_type(*b_output);
if (output_type == SocketType::UNDEFINED) {
continue;
}
ConvertNode *proxy = new ConvertNode(output_type, output_type, true);
graph->add(proxy);
/* register the proxy node for internal binding */
group_proxy_output_map[b_output->identifier()] = proxy;
output_map[b_output->ptr.data] = proxy->outputs[0];
}
if(b_group_ntree) {
add_nodes(scene,
b_engine,
b_data,
b_depsgraph,
b_scene,
graph,
b_group_ntree,
group_proxy_input_map,
group_proxy_output_map);
}
}
else if(b_node->is_a(&RNA_NodeGroupInput)) {
/* map each socket to a proxy node */
for(b_node->outputs.begin(b_output); b_output != b_node->outputs.end(); ++b_output) {
ProxyMap::const_iterator proxy_it = proxy_input_map.find(b_output->identifier());
if(proxy_it != proxy_input_map.end()) {
ConvertNode *proxy = proxy_it->second;
output_map[b_output->ptr.data] = proxy->outputs[0];
}
}
}
else if(b_node->is_a(&RNA_NodeGroupOutput)) {
BL::NodeGroupOutput b_output_node(*b_node);
/* only the active group output is used */
if(b_output_node.is_active_output()) {
/* map each socket to a proxy node */
for(b_node->inputs.begin(b_input); b_input != b_node->inputs.end(); ++b_input) {
ProxyMap::const_iterator proxy_it = proxy_output_map.find(b_input->identifier());
if(proxy_it != proxy_output_map.end()) {
ConvertNode *proxy = proxy_it->second;
input_map[b_input->ptr.data] = proxy->inputs[0];
set_default_value(proxy->inputs[0], *b_input, b_data, b_ntree);
}
}
}
}
else {
ShaderNode *node = NULL;
if(b_node->ptr.data == output_node.ptr.data) {
node = graph->output();
}
else {
BL::ShaderNode b_shader_node(*b_node);
node = add_node(scene,
b_engine,
b_data,
b_depsgraph,
b_scene,
graph,
b_ntree,
b_shader_node);
}
if(node) {
/* map node sockets for linking */
for(b_node->inputs.begin(b_input); b_input != b_node->inputs.end(); ++b_input) {
ShaderInput *input = node_find_input_by_name(node, *b_node, *b_input);
if(!input) {
/* XXX should not happen, report error? */
continue;
}
input_map[b_input->ptr.data] = input;
set_default_value(input, *b_input, b_data, b_ntree);
}
for(b_node->outputs.begin(b_output); b_output != b_node->outputs.end(); ++b_output) {
ShaderOutput *output = node_find_output_by_name(node, *b_node, *b_output);
if(!output) {
/* XXX should not happen, report error? */
continue;
}
output_map[b_output->ptr.data] = output;
}
}
}
}
/* connect nodes */
BL::NodeTree::links_iterator b_link;
for(b_ntree.links.begin(b_link); b_link != b_ntree.links.end(); ++b_link) {
/* Ignore invalid links to avoid unwanted cycles created in graph. */
if(!b_link->is_valid()) {
continue;
}
/* get blender link data */
BL::NodeSocket b_from_sock = b_link->from_socket();
BL::NodeSocket b_to_sock = b_link->to_socket();
ShaderOutput *output = 0;
ShaderInput *input = 0;
PtrOutputMap::iterator output_it = output_map.find(b_from_sock.ptr.data);
if(output_it != output_map.end())
output = output_it->second;
PtrInputMap::iterator input_it = input_map.find(b_to_sock.ptr.data);
if(input_it != input_map.end())
input = input_it->second;
/* either node may be NULL when the node was not exported, typically
* because the node type is not supported */
if(output && input)
graph->connect(output, input);
}
}
static void add_nodes(Scene *scene,
BL::RenderEngine& b_engine,
BL::BlendData& b_data,
BL::Depsgraph& b_depsgraph,
BL::Scene& b_scene,
ShaderGraph *graph,
BL::ShaderNodeTree& b_ntree)
{
static const ProxyMap empty_proxy_map;
add_nodes(scene,
b_engine,
b_data,
b_depsgraph,
b_scene,
graph,
b_ntree,
empty_proxy_map,
empty_proxy_map);
}
/* Sync Materials */
void BlenderSync::sync_materials(BL::Depsgraph& b_depsgraph, bool update_all)
{
shader_map.set_default(scene->default_surface);
TaskPool pool;
set<Shader*> updated_shaders;
BL::Depsgraph::ids_iterator b_id;
for(b_depsgraph.ids.begin(b_id); b_id != b_depsgraph.ids.end(); ++b_id) {
if (!b_id->is_a(&RNA_Material)) {
continue;
}
BL::Material b_mat(*b_id);
Shader *shader;
/* test if we need to sync */
if(shader_map.sync(&shader, b_mat) || shader->need_sync_object || update_all) {
ShaderGraph *graph = new ShaderGraph();
shader->name = b_mat.name().c_str();
shader->pass_id = b_mat.pass_index();
shader->need_sync_object = false;
/* create nodes */
if(b_mat.use_nodes() && b_mat.node_tree()) {
BL::ShaderNodeTree b_ntree(b_mat.node_tree());
add_nodes(scene, b_engine, b_data, b_depsgraph, b_scene, graph, b_ntree);
}
else {
DiffuseBsdfNode *diffuse = new DiffuseBsdfNode();
diffuse->color = get_float3(b_mat.diffuse_color());
graph->add(diffuse);
ShaderNode *out = graph->output();
graph->connect(diffuse->output("BSDF"), out->input("Surface"));
}
/* settings */
PointerRNA cmat = RNA_pointer_get(&b_mat.ptr, "cycles");
shader->use_mis = get_boolean(cmat, "sample_as_light");
shader->use_transparent_shadow = get_boolean(cmat, "use_transparent_shadow");
shader->heterogeneous_volume = !get_boolean(cmat, "homogeneous_volume");
shader->volume_sampling_method = get_volume_sampling(cmat);
shader->volume_interpolation_method = get_volume_interpolation(cmat);
shader->displacement_method = get_displacement_method(cmat);
shader->set_graph(graph);
/* By simplifying the shader graph as soon as possible, some
* redundant shader nodes might be removed which prevents loading
* unnecessary attributes later.
*
* However, since graph simplification also accounts for e.g. mix
* weight, this would cause frequent expensive resyncs in interactive
* sessions, so for those sessions optimization is only performed
* right before compiling.
*/
if(!preview) {
pool.push(function_bind(&ShaderGraph::simplify, graph, scene));
/* NOTE: Update shaders out of the threads since those routines
* are accessing and writing to a global context.
*/
updated_shaders.insert(shader);
}
else {
/* NOTE: Update tagging can access links which are being
* optimized out.
*/
shader->tag_update(scene);
}
}
}
pool.wait_work();
foreach(Shader *shader, updated_shaders) {
shader->tag_update(scene);
}
}
/* Sync World */
void BlenderSync::sync_world(BL::Depsgraph& b_depsgraph, bool update_all)
{
Background *background = scene->background;
Background prevbackground = *background;
BL::World b_world = b_scene.world();
if(world_recalc || update_all || b_world.ptr.data != world_map) {
Shader *shader = scene->default_background;
ShaderGraph *graph = new ShaderGraph();
/* create nodes */
if(b_world && b_world.use_nodes() && b_world.node_tree()) {
BL::ShaderNodeTree b_ntree(b_world.node_tree());
add_nodes(scene, b_engine, b_data, b_depsgraph, b_scene, graph, b_ntree);
/* volume */
PointerRNA cworld = RNA_pointer_get(&b_world.ptr, "cycles");
shader->heterogeneous_volume = !get_boolean(cworld, "homogeneous_volume");
shader->volume_sampling_method = get_volume_sampling(cworld);
shader->volume_interpolation_method = get_volume_interpolation(cworld);
}
else if(b_world) {
BackgroundNode *background = new BackgroundNode();
background->color = get_float3(b_world.horizon_color());
graph->add(background);
ShaderNode *out = graph->output();
graph->connect(background->output("Background"), out->input("Surface"));
}
if(b_world) {
/* AO */
BL::WorldLighting b_light = b_world.light_settings();
background->use_ao = b_light.use_ambient_occlusion();
background->ao_factor = b_light.ao_factor();
background->ao_distance = b_light.distance();
/* visibility */
PointerRNA cvisibility = RNA_pointer_get(&b_world.ptr, "cycles_visibility");
uint visibility = 0;
visibility |= get_boolean(cvisibility, "camera")? PATH_RAY_CAMERA: 0;
visibility |= get_boolean(cvisibility, "diffuse")? PATH_RAY_DIFFUSE: 0;
visibility |= get_boolean(cvisibility, "glossy")? PATH_RAY_GLOSSY: 0;
visibility |= get_boolean(cvisibility, "transmission")? PATH_RAY_TRANSMIT: 0;
visibility |= get_boolean(cvisibility, "scatter")? PATH_RAY_VOLUME_SCATTER: 0;
background->visibility = visibility;
}
else {
background->use_ao = false;
background->ao_factor = 0.0f;
background->ao_distance = FLT_MAX;
}
shader->set_graph(graph);
shader->tag_update(scene);
background->tag_update(scene);
}
PointerRNA cscene = RNA_pointer_get(&b_scene.ptr, "cycles");
/* when doing preview render check for BI's transparency settings,
* this is so because Blender's preview render routines are not able
* to tweak all cycles's settings depending on different circumstances
*/
if(b_engine.is_preview() == false)
background->transparent = get_boolean(cscene, "film_transparent");
else
background->transparent = b_scene.render().alpha_mode() == BL::RenderSettings::alpha_mode_TRANSPARENT;
if(background->transparent) {
background->transparent_glass = get_boolean(cscene, "film_transparent_glass");
background->transparent_roughness_threshold = get_float(cscene, "film_transparent_roughness");
}
else {
background->transparent_glass = false;
background->transparent_roughness_threshold = 0.0f;
}
background->use_shader = view_layer.use_background_shader;
background->use_ao = background->use_ao && view_layer.use_background_ao;
if(background->modified(prevbackground))
background->tag_update(scene);
}
/* Sync Lights */
void BlenderSync::sync_lights(BL::Depsgraph& b_depsgraph, bool update_all)
{
shader_map.set_default(scene->default_light);
BL::Depsgraph::ids_iterator b_id;
for(b_depsgraph.ids.begin(b_id); b_id != b_depsgraph.ids.end(); ++b_id) {
if (!b_id->is_a(&RNA_Light)) {
continue;
}
BL::Light b_light(*b_id);
Shader *shader;
/* test if we need to sync */
if(shader_map.sync(&shader, b_light) || update_all) {
ShaderGraph *graph = new ShaderGraph();
/* create nodes */
if(b_light.use_nodes() && b_light.node_tree()) {
shader->name = b_light.name().c_str();
BL::ShaderNodeTree b_ntree(b_light.node_tree());
add_nodes(scene, b_engine, b_data, b_depsgraph, b_scene, graph, b_ntree);
}
else {
float strength = 1.0f;
if(b_light.type() == BL::Light::type_POINT ||
b_light.type() == BL::Light::type_SPOT ||
b_light.type() == BL::Light::type_AREA)
{
strength = 100.0f;
}
EmissionNode *emission = new EmissionNode();
emission->color = get_float3(b_light.color());
emission->strength = strength;
graph->add(emission);
ShaderNode *out = graph->output();
graph->connect(emission->output("Emission"), out->input("Surface"));
}
shader->set_graph(graph);
shader->tag_update(scene);
}
}
}
void BlenderSync::sync_shaders(BL::Depsgraph& b_depsgraph)
{
/* for auto refresh images */
bool auto_refresh_update = false;
if(preview) {
ImageManager *image_manager = scene->image_manager;
int frame = b_scene.frame_current();
auto_refresh_update = image_manager->set_animation_frame_update(frame);
}
shader_map.pre_sync();
sync_world(b_depsgraph, auto_refresh_update);
sync_lights(b_depsgraph, auto_refresh_update);
sync_materials(b_depsgraph, auto_refresh_update);
/* false = don't delete unused shaders, not supported */
shader_map.post_sync(false);
}
CCL_NAMESPACE_END
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