diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_texture.c')
| -rw-r--r-- | source/blender/gpu/intern/gpu_texture.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/source/blender/gpu/intern/gpu_texture.c b/source/blender/gpu/intern/gpu_texture.c index 9ef42592b55..2fd3e618664 100644 --- a/source/blender/gpu/intern/gpu_texture.c +++ b/source/blender/gpu/intern/gpu_texture.c @@ -1648,6 +1648,17 @@ void GPU_texture_wrap_mode(GPUTexture *tex, bool use_repeat) } } +void GPU_texture_swizzle_channel_auto(GPUTexture *tex, int channels) +{ + WARN_NOT_BOUND(tex); + + glActiveTexture(GL_TEXTURE0 + tex->number); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_R, GL_RED); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_G, (channels >= 2) ? GL_GREEN : GL_RED); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_B, (channels >= 3) ? GL_BLUE : GL_RED); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_A, (channels >= 4) ? GL_ALPHA : GL_ONE); +} + static GLenum gpu_get_gl_filterfunction(eGPUFilterFunction filter) { switch (filter) { |