glsl: Make invariant outputs in ES fragment shader not to cause error (!61) · Merge requests · Mesa / mesa

In all GLSL ES versions output variables in fragment shader are allowed to be invariant.

From Section 4.6.1 ("The Invariant Qualifier") GLSL ES 1.00 spec:

"Only the following variables may be declared as invariant:

Built-in special variables output from the fragment shader."

From Section 4.6.1 ("The Invariant Qualifier") GLSL ES 3.00 spec:

"Only variables output from a shader can be candidates for invariance."

This patch was lying forgotten in mailing lists for some time.

glsl: Make invariant outputs in ES fragment shader not to cause error