[Mesa-dev] [PATCH] ir_to_mesa: Handle shadow compare w/projection and LOD bias correctly

[Ian Romanick]

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On 04/04/2011 02:42 PM, Brian Paul wrote:
> BTW, as long as you're looking at shadow samplers, we'll need support
> for cubical shadow map sampling in the (hopefully not too distant)
> future.  The coord.W component would be the distance value.  I haven't
> looked to see if that's a new issue in the IR or code generators.

It shouldn't be a problem for the GLSL IR.  The coordinate used to
sample the texture is stored in the as a vector of the correct type for
the texture target.  The comparitor is stored separately as a scalar.
The various back ends will need to be updated to do the right thing, and
right now they don't.
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