CODEWITHSUNDEEP
androidopengl-es
John
John

Reputation: 727

How to render to a specific mip-level in OpenGLES?

Anyone know how to render to specific mip-level texture?

Currently I am binding the mip-level texture by:

        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
            GL_TEXTURE_2D, textID, mip-level);

Then later in my code, I will do something like this:

glBindFramebuffer(GL_FRAMEBUFFER, FBO_ID);
    drawArrays(...);

But I the shader is not executed!!!

Upvotes: 1

Views: 329

Answers (1)

Andon M. Coleman
Andon M. Coleman

Reputation: 43359

If textID is anything other than 0, this should be generating a GL_INVALID_VALUE error.

  • GL_INVALID_VALUE is generated if level is not 0 and texture is not 0.

I suggest you take a look at glFramebufferTexture2D for OpenGL ES. It is valid to do what you want in normal OpenGL but not in OpenGL ES :-\

Upvotes: 1

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