Forums - use samplerExternalOES error

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use samplerExternalOES error
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Join Date: 31 Jul 12
Posts: 2
Posted: Tue, 2012-07-31 23:52
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hi, all

       I use c/c++ with OpenGLES,  met a problem about external texture. When I  bind the surface texture to a rectangle with texture unit 0(use samplerExternalOES  in fragment shader), use texture unit 1 for looking up other texture data(use sampler2D in fragment shader). I found if rendering just a rectangle,  the rectangle can not display surface texture, it is wrong . But if rendering two or more rectangles ,it will be display right. Why does this happen? I'm so confused .

     Thank you for your help.

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