Difference between revisions of "Talk:Rectangle Texture"

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(puzzle about texture coordinate in the texel space)
 
(Explaining meaning of center of a texel.)
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== Texel center ==
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What's meaning of 'the CENTER of 13th texel'? Isn't a texel the minimal unit for sampling?
 
What's meaning of 'the CENTER of 13th texel'? Isn't a texel the minimal unit for sampling?
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: The sentence in question is attempting to explain where a particular non-normalized texture coordinate goes to in texel space. Because rectangle textures can undergo filtering, they are not discrete spaces. So if the coordinate means "the center of the 13th texel", that can give a different value from "the left edge of the 13th texel" depending on the filtering mode. The latter will filter against the 12th texel; the former will not. [[User:Alfonse|Alfonse]] ([[User talk:Alfonse|talk]]) 18:05, 26 November 2019 (UTC)

Revision as of 18:05, 26 November 2019

Texel center

What's meaning of 'the CENTER of 13th texel'? Isn't a texel the minimal unit for sampling?

The sentence in question is attempting to explain where a particular non-normalized texture coordinate goes to in texel space. Because rectangle textures can undergo filtering, they are not discrete spaces. So if the coordinate means "the center of the 13th texel", that can give a different value from "the left edge of the 13th texel" depending on the filtering mode. The latter will filter against the 12th texel; the former will not. Alfonse (talk) 18:05, 26 November 2019 (UTC)