[Mesa-dev] [PATCH] docs: document INTEL_PRECISE_TRIG envvar

[Juan A. Suarez Romero]

---
 docs/envvars.html | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docs/envvars.html b/docs/envvars.html
index 9eee8db..4f05d7f 100644
--- a/docs/envvars.html
+++ b/docs/envvars.html
@@ -187,6 +187,7 @@ See the <a href="xlibdriver.html">Xlib software driver page</a> for details.
    <li>do32 - generate compute shader SIMD32 programs even if workgroup size doesn't exceed the SIMD16 limit</li>
    <li>norbc - disable single sampled render buffer compression</li>
 </ul>
+<li>INTEL_PRECISE_TRIG - if set to 1 in gen<10, it fixes results out of [-1.0, 1.0] range for a small set of values.</li>
 </ul>
 
 
-- 
2.9.3