diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/envvars.html | 1 | ||||
| -rw-r--r-- | docs/shading.html | 8 |
2 files changed, 8 insertions, 1 deletions
diff --git a/docs/envvars.html b/docs/envvars.html index 6d7a321da9..b2c0e01ee3 100644 --- a/docs/envvars.html +++ b/docs/envvars.html @@ -28,6 +28,7 @@ Setting this variable automatically sets the MESA_TEX_PROG variable as well. <li>MESA_EXTENSION_OVERRIDE - can be used to enable/disable extensions. A value such as "GL_EXT_foo -GL_EXT_bar" will enable the GL_EXT_foo extension and disable the GL_EXT_bar extension. +<li>MESA_GLSL - <a href="shading.html#envvars">shading language options</a> </ul> <p> diff --git a/docs/shading.html b/docs/shading.html index 77c86be3aa..96060f1a75 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 |