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-rw-r--r--src/gallium/docs/source/context.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst
index f241411a002..8250c30f2ab 100644
--- a/src/gallium/docs/source/context.rst
+++ b/src/gallium/docs/source/context.rst
@@ -63,7 +63,9 @@ objects. They all follow simple, one-method binding calls, e.g.
* ``set_scissor_state`` sets the bounds for the scissor test, which culls
pixels before blending to render targets. If the :ref:`Rasterizer` does
not have the scissor test enabled, then the scissor bounds never need to
- be set since they will not be used.
+ be set since they will not be used. Note that scissor xmin and ymin are
+ inclusive, but xmax and ymax are exclusive. The inclusive ranges in x
+ and y would be [xmin..xmax-1] and [ymin..ymax-1].
* ``set_viewport_state``