GPU: remove 'GPU_SHADER_2D_UNIFORM_COLOR'

The only real difference between `GPU_SHADER_2D_UNIFORM_COLOR` and
`GPU_SHADER_3D_UNIFORM_COLOR` is that in the vertex shader the 2D
version uses `vec4(pos, 0.0, 1.0)` and the 3D version uses
`vec4(pos, 1.0)`.

But VBOs with 2D attributes work perfectly in shaders that use 3D
attributes. Components not specified are filled with components from
`vec4(0.0, 0.0, 0.0, 1.0)`.

So there is no real benefit to having two different shader versions.

This will simplify porting shaders to python as it will not be
necessary to use a 3D and a 2D version of the shaders.

In python the new name for '2D_UNIFORM_COLOR'' and '3D_UNIFORM_COLOR'
is 'UNIFORM_COLOR', but the old names still work for backward
compatibility.

Differential Revision: https://developer.blender.org/D15836

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/editors/animation/anim_markers.c b/source/blender/editors/animation/anim_markers.c
index e7c7f679b16..f2655f31f3c 100644
--- a/source/blender/editors/animation/anim_markers.c
+++ b/source/blender/editors/animation/anim_markers.c
@@ -503,7 +503,7 @@ static void draw_marker(const uiFontStyle *fstyle,
 static void draw_markers_background(rctf *rect)
 {
   uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
-  immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
+  immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
 
   uchar shade[4];
   UI_GetThemeColor4ubv(TH_TIME_SCRUB_BACKGROUND, shade);