I have a 2d triangle with uv coordinates, i have a point d and I wish to calculate the uv coordinates for this point.
It has to fit in a geometry shader, can someone help me out?
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#1
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Posted 18 April 2009 - 07:51 PM
I have a 2d triangle with uv coordinates, i have a point d and I wish to calculate the uv coordinates for this point.
It has to fit in a geometry shader, can someone help me out?
#2
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Posted 18 April 2009 - 08:31 PM
Google for "barycentric coordinates", that should do the job.
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#3
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Posted 19 April 2009 - 03:47 PM
Don't forget to do perspective correction.
#4
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Posted 19 April 2009 - 03:49 PM
geon said:
Don't forget to do perspective correction.
It's a 2D triangle...
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