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-rw-r--r--docs/envvars.html5
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/envvars.html b/docs/envvars.html
index 6520befaaa..7b64dc9fef 100644
--- a/docs/envvars.html
+++ b/docs/envvars.html
@@ -20,6 +20,11 @@ Mesa supports the following environment variables:
If the value of MESA_DEBUG is "FP" floating point arithmetic errors will
generate exceptions.
<li>MESA_NO_DITHER - if set, disables dithering, overriding glEnable(GL_DITHER)
+<li>MESA_TEX_PROG - if set, implement conventional texture env modes with
+fragment programs (intended for developers only)
+<li>MESA_TNL_PROG - if set, implement conventional vertex transformation
+operations with vertex programs (intended for developers only).
+Setting this variable automatically sets the MESA_TEX_PROG variable as well.
</ul>
<p>