diff options
| author | Brecht Van Lommel <brecht@blender.org> | 2020-03-11 16:52:55 +0300 |
|---|---|---|
| committer | Brecht Van Lommel <brecht@blender.org> | 2020-03-11 16:52:55 +0300 |
| commit | e1e772a80243f3c279fcd076c8311301e8885d41 (patch) | |
| tree | aef8e3355b271e96a82428ba764a97dac83edca1 /source/blender/gpu | |
| parent | c4beb518de5382a23a2d1cd7b7688f24b5f36c4d (diff) | |
Cleanup: add comment explaining reason for volume texture swizzling
Diffstat (limited to 'source/blender/gpu')
| -rw-r--r-- | source/blender/gpu/intern/gpu_draw_smoke.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/source/blender/gpu/intern/gpu_draw_smoke.c b/source/blender/gpu/intern/gpu_draw_smoke.c index aa7789b3342..546faadbda4 100644 --- a/source/blender/gpu/intern/gpu_draw_smoke.c +++ b/source/blender/gpu/intern/gpu_draw_smoke.c @@ -124,6 +124,8 @@ static GPUTexture *create_transfer_function(int type, const struct ColorBand *co static void swizzle_texture_channel_single(GPUTexture *tex) { + /* Swizzle texture channels so that we get useful RGBA values when sampling + * a texture with fewer channels, e.g. when using density as color. */ GPU_texture_bind(tex, 0); GPU_texture_swizzle_channel_auto(tex, 1); GPU_texture_unbind(tex); |