Enumeration
CoglPipelineAlphaFunc
Description [src]
Alpha testing happens before blending primitives with the framebuffer and
gives an opportunity to discard fragments based on a comparison with the
incoming alpha value and a reference alpha value. The CoglPipelineAlphaFunc
determines how the comparison is done.
Members
-
COGL_PIPELINE_ALPHA_FUNC_NEVER -
Never let the fragment through.
- Value:
512 - Available since: 16
- Value:
-
COGL_PIPELINE_ALPHA_FUNC_LESS -
Let the fragment through if the incoming alpha value is less than the reference alpha value.
- Value:
513 - Available since: 16
- Value:
-
COGL_PIPELINE_ALPHA_FUNC_EQUAL -
Let the fragment through if the incoming alpha value equals the reference alpha value.
- Value:
514 - Available since: 16
- Value:
-
COGL_PIPELINE_ALPHA_FUNC_LEQUAL -
Let the fragment through if the incoming alpha value is less than or equal to the reference alpha value.
- Value:
515 - Available since: 16
- Value:
-
COGL_PIPELINE_ALPHA_FUNC_GREATER -
Let the fragment through if the incoming alpha value is greater than the reference alpha value.
- Value:
516 - Available since: 16
- Value:
-
COGL_PIPELINE_ALPHA_FUNC_NOTEQUAL -
Let the fragment through if the incoming alpha value does not equal the reference alpha value.
- Value:
517 - Available since: 16
- Value:
-
COGL_PIPELINE_ALPHA_FUNC_GEQUAL -
Let the fragment through if the incoming alpha value is greater than or equal to the reference alpha value.
- Value:
518 - Available since: 16
- Value:
-
COGL_PIPELINE_ALPHA_FUNC_ALWAYS -
Always let the fragment through.
- Value:
519 - Available since: 16
- Value: