diff options
| author | Brian Paul <[email protected]> | 2009-10-14 11:28:28 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2009-10-14 19:09:08 -0600 |
| commit | 85fb3e402744bbfd67ca9c79c98f54dd8ad169f5 (patch) | |
| tree | 12a644b24704bffba076178d4ee710b18fe51ae2 /docs/shading.html | |
| parent | 24e2f61469a4915ca4aba431cbe4634293cbe92e (diff) | |
docs: document more MESA_GLSL env var options
Diffstat (limited to 'docs/shading.html')
| -rw-r--r-- | docs/shading.html | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/docs/shading.html b/docs/shading.html index 77c86be3aa6..96060f1a752 100644 --- a/docs/shading.html +++ b/docs/shading.html @@ -39,7 +39,8 @@ Contents <p> The <b>MESA_GLSL</b> environment variable can be set to a comma-separated -list of keywords to control some aspects of the GLSL compiler: +list of keywords to control some aspects of the GLSL compiler and shader +execution. These are generally used for debugging. </p> <ul> <li>dump - print GLSL shader code to stdout at link time @@ -49,6 +50,11 @@ list of keywords to control some aspects of the GLSL compiler: <li>nopt - disable compiler optimizations <li>opt - force compiler optimizations <li>uniform - print message to stdout when glUniform is called +<li>nopvert - force vertex shaders to be a simple shader that just transforms + the vertex position with ftransform() and passes through the color and + texcoord[0] attributes. +<li>nopfrag - force fragment shader to be a simple shader that passes + through the color attribute. </ul> <p> Example: export MESA_GLSL=dump,nopt |