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Re: [Public WebGL] Centroid sampling makes conformance tests fail?

To: public_webgl@khronos.org
Subject: Re: [Public WebGL] Centroid sampling makes conformance tests fail?
From: Mark Callow <callow_mark@hicorp.co.jp>
Date: Thu, 21 Jun 2012 10:54:30 +0900
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On 21/06/2012 06:17, Florian Bösch wrote:

...

So regarding the centroid sampling, I don't know how HLSL specifies this exactly, but in GLSL (for desktop OpenGL) there are sampling specifiers to varyings. They usually default to centroid sampling, but can be switched over to nearest and other modes.

You've got that backwards. A variable not qualified with "centroid" can be interpolated with the flexibility Nicolas described from the OpenGL ES 2.0 spec. You must specify "centroid" in the FS to get centroid behavior.

Regards

-Mark

References:
- [Public WebGL] Centroid sampling makes conformance tests fail?
  - From: Nicolas Capens <nicolas@transgaming.com>
- Re: [Public WebGL] Centroid sampling makes conformance tests fail?
  - From: Florian Bösch <pyalot@gmail.com>
- Re: [Public WebGL] Centroid sampling makes conformance tests fail?
  - From: Nicolas Capens <nicolas@transgaming.com>
- Re: [Public WebGL] Centroid sampling makes conformance tests fail?
  - From: Florian Bösch <pyalot@gmail.com>

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