On 07/11/2013 01:44 PM, Zack Rusin wrote:
GLSL spec says that rsq is undefined for src<=0, but the D3D10
spec says it needs to be a NaN, so lets stop taking an absolute
value of the source which completely breaks that behavior. For
the gl program we can simply insert an extra abs instrunction
which produces the desired behavior there.
Signed-off-by: Zack Rusin <[email protected]>
---
Reviewed-by: Brian Paul <[email protected]>
Also, GLSL's inversesqrt() doesn't say anything about absolute value.
-Brian
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