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I trying to use the FBO by Android OpenGLES 2.0
I can render to a color texture then render to the screen now I want to render to a depth texture! but I didnt found the attr name GL_DEPTH_TEXTURE_MODE. is it not support in opengles?

Nicol Bolas
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user2318003
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1 Answers1

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GL_DEPTH_TEXTURE_MODE has nothing to do with rendering to a depth texture. That's old fixed-function stuff from desktop OpenGL 2.1. Rendering to a depth texture only requires creating a texture with a depth internal format, and then attaching it to the GL_DEPTH_ATTACHMENT of an FBO.

Nicol Bolas
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  • Is there a list of what is not "modern" OpenGL and what is? There are so many things that I don't know and I hate to go on a wild goose chase just because I didn't know that that API was fixed function... – John Leidegren Aug 30 '16 at 18:25
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    @JohnLeidegren: Generally speaking, any [OpenGL learning materials that use core profile OpenGL](https://www.opengl.org/wiki/Getting_Started#Tutorials_and_How_To_Guides) or OpenGL ES 2.0 will tell you that up-front. So just avoid the ones that don't say what version of OpenGL they're using. As for a list, you can always use the [OpenGL reference pages](https://www.opengl.org/sdk/docs/man/) or [GL Wiki](https://www.opengl.org/wiki/Main_Page) to know what's core and what is not. – Nicol Bolas Aug 30 '16 at 19:16
  • ...and here I was just thinking what exactly is the meaning of the term "core". Clearly this is the answer to my question. – John Leidegren Aug 31 '16 at 09:53