Support for clip/cull planes in ES: EXT_clip_cull_distance #566
Assignees
Labels
Comments
|
Yes, if this extension gets implemented, it would change what versions trigger these variables. In glslang, I only see |
|
We at Unity would like to see this get implemented soon, as AFAIK the only way to get glslang to produce RelaxedPrecision stuff is to use ES profile, but that in turn will disable all user clip planes. Having this be controlled by an extension would also be a good way to control whether the SPIR-V shader output requires the ClipDistance capability. |
This actually is not true. When generating SPIR-V, GLSL mediump and lowp translate to SPIR-V RelaxedPrecision. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
EXT_clip_cull_distance exposts ARB_cull_distance to GL ES.
https://www.khronos.org/registry/gles/extensions/EXT/EXT_clip_cull_distance.txt
It looks like the version/profile requirements in Initialize.cpp will need updating to include ES for the following:
gl_ClipDistance
gl_CullDistance
gl_MaxClipDistances
gl_MaxCullDistances
gl_MaxCombinedClipAndCullDistances
Also just to double check, the version number requirements for cull distance are 450, but only OpenGL 3.0 is required. Is this because a
#extensiondirective is needed to enable them before#version 450?The text was updated successfully, but these errors were encountered: