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[kbrafford]

Is there a concise demo available showing how to do some calculations that generate a 2D array of pixel values with OpenCL, then shows how to use that image as a texture in OpenGL (say, mapping it onto a spinning cube or something like that)?

[nou]

look into SimpleGL example from APP SDK. it use buffer for VBO but it is almost the same as texture. just change buffer function into image equvivalents.

[kbrafford]

>just change buffer function into image equvivalents.

Heh....that's what I don't know how to do 🙂

[nou]

you replace clCreateFromGLBuffer() with clCreateFromTexture2D(context, flags, GL_TEXTURE_2D, 0, gl_texture, &err);

only diference is specify texture_target and mipmap level. you just pass GL_TEXTURE_2D and mipmap 0.

also in kernel you treat it as image2d_t