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Am 2013-09-03 09:47, schrieb Henri Verbeet:
This originally came from the ARB fragment program implementation,
but I don't see a justification for clamping there either. For the
texture formats typically used with the fixed function pipe
clamping wouldn't make a difference, and we don't have any tests
that say we need to clamp.
The idea behind the clamps is that the fixed function pipeline is
generally limited to the [0.0;1.0] range. bbf313e7 added a test for
that, and there was e.g. 14706 (which doesn't contain much info tbh).
Personally I'd keep the clamps in unless a test says otherwise or
there's another compelling reason to remove them. But since it is
quite unlikely to matter that's not a strong opinion. The ideal
solution is of course to write a test.
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