Mesa (gallium-index-bias): docs: Document indexBias.

[Jose Fonseca]

Module: Mesa
Branch: gallium-index-bias
Commit: 857c7c7ca266df4be8d4c725e056f69d4ee96624
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=857c7c7ca266df4be8d4c725e056f69d4ee96624

Author: José Fonseca <jfonseca at vmware.com>
Date:   Mon Apr 19 15:08:14 2010 +0200

docs: Document indexBias.

---

 src/gallium/docs/source/context.rst |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst
index 7439d10..69e0fcc 100644
--- a/src/gallium/docs/source/context.rst
+++ b/src/gallium/docs/source/context.rst
@@ -153,6 +153,9 @@ vertex attributes.
 If ``indexBuffer`` is NULL, the sequential numbers are used directly
 as indices to fetch vertex attributes.
 
+``indexBias`` is a value which is added to every index read from the index 
+buffer before fetching vertex attributes.
+
 If a given vertex element has ``instance_divisor`` set to 0, it is said
 it contains per-vertex data and effective vertex attribute address needs
 to be recalculated for every index.