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OpenGL: set OpenGL lights through simple shader API.

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This commit is contained in:
Brecht Van Lommel
2015-11-27 21:08:48 +01:00
parent b5f9746dae
commit e1b8a5dc6f
2 changed files with 54 additions and 83 deletions
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47
source/blender/editors/interface/interface_draw.c
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@@ -55,6 +55,9 @@
#include "BLF_api.h"
#include "GPU_draw.h"
#include "GPU_simple_shader.h"
#include "UI_interface.h"
/* own include */
@@ -1216,14 +1219,12 @@ void ui_draw_but_COLORBAND(uiBut *but, uiWidgetColors *UNUSED(wcol), const rcti
void ui_draw_but_UNITVEC(uiBut *but, uiWidgetColors *wcol, const rcti *rect)
{
static GLuint displist = 0;
int a, old[8];
GLfloat diff[4], diffn[4] = {1.0f, 1.0f, 1.0f, 1.0f};
float vec0[4] = {0.0f, 0.0f, 0.0f, 0.0f};
float dir[4], size;
float diff[4], diffn[4] = {1.0f, 1.0f, 1.0f, 1.0f};
float size;
/* store stuff */
glGetMaterialfv(GL_FRONT, GL_DIFFUSE, diff);
/* backdrop */
glColor3ubv((unsigned char *)wcol->inner);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
@@ -1234,24 +1235,18 @@ void ui_draw_but_UNITVEC(uiBut *but, uiWidgetColors *wcol, const rcti *rect)
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
/* disable blender light */
for (a = 0; a < 8; a++) {
old[a] = glIsEnabled(GL_LIGHT0 + a);
glDisable(GL_LIGHT0 + a);
}
/* own light */
glEnable(GL_LIGHT7);
glEnable(GL_LIGHTING);
ui_but_v3_get(but, dir);
/* setup lights */
GPULightData light = {0};
light.type = GPU_LIGHT_SUN;
copy_v3_v3(light.diffuse, diffn);
zero_v3(light.specular);
ui_but_v3_get(but, light.direction);
dir[3] = 0.0f; /* glLightfv needs 4 args, 0.0 is sun */
glLightfv(GL_LIGHT7, GL_POSITION, dir);
glLightfv(GL_LIGHT7, GL_DIFFUSE, diffn);
glLightfv(GL_LIGHT7, GL_SPECULAR, vec0);
glLightf(GL_LIGHT7, GL_CONSTANT_ATTENUATION, 1.0f);
glLightf(GL_LIGHT7, GL_LINEAR_ATTENUATION, 0.0f);
GPU_simple_shader_light_set(0, &light);
for (int a = 1; a < 8; a++)
GPU_simple_shader_light_set(a, NULL);
glEnable(GL_LIGHTING);
/* transform to button */
glPushMatrix();
@@ -1283,10 +1278,10 @@ void ui_draw_but_UNITVEC(uiBut *but, uiWidgetColors *wcol, const rcti *rect)
glCallList(displist);
/* restore */
GPU_default_lights();
glDisable(GL_LIGHTING);
glDisable(GL_CULL_FACE);
glMaterialfv(GL_FRONT, GL_DIFFUSE, diff);
glDisable(GL_LIGHT7);
/* AA circle */
glEnable(GL_BLEND);
@@ -1298,12 +1293,6 @@ void ui_draw_but_UNITVEC(uiBut *but, uiWidgetColors *wcol, const rcti *rect)
/* matrix after circle */
glPopMatrix();
/* enable blender light */
for (a = 0; a < 8; a++) {
if (old[a])
glEnable(GL_LIGHT0 + a);
}
}
static void ui_draw_but_curve_grid(const rcti *rect, float zoomx, float zoomy, float offsx, float offsy, float step)