If there is such a thing.Currently, to draw on screen, I generate a framebuffer with a Renderbuffer for the GL_COLOR_ATTACHMENT0 using this code. Memorize this, and you can show off at the next OpenGL trivia night. As pointed out by in a comment, this was part of the ARB_ES2_compatibility extension that became core in OpenGL 4.1. It was not in 3.0, and even more interestingly, it is gone in 4.1 and later. It gets stranger still: Checking all the desktop OpenGL specs starting at 3.0, where FBOs were introduced, the error condition is listed in the specs for 3.1, 3.2, 3.3, and 4.0. So the glDrawBuffer() call is not needed there. These error conditions are not listed in any OpenGL ES spec, as far as I could find. To avoid the very similar GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER error condition, you will also need to set the read buffer to GL_NONE: glReadBuffer(GL_NONE)

The default draw buffer for FBOs is GL_COLOR_ATTACHMENT0, so this error condition applies if you don't have an attachment for GL_COLOR_ATTACHMENT0, and leave the draw buffer at the default. The value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE must not be NONE for any color attachment point(s) named by DRAW_BUFFERi.

If you miss this, you will get the error you're seeing, as specified for the error conditions under 'Framebuffer Completeness' in the OpenGL 3.3 spec: This is per framebuffer state, so it needs to be called while the FBO is bound. If you don't want to render to any color buffers, you need a call that specifies that: glDrawBuffer(GL_NONE) All I want to is to render ONLY the depth into a texture. I read the GL glFrameBuffer docs, and I cannot comprehend why the code above wouldn't work. The only way I found to make it work is to specify a COLOR_ATTACHMENT (which would fix the draw buffer error). I always get the error GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER. Now I'm porting this code to OpenGL Desktop (2.1 and up) and it refuses to work. Unsigned int type = glCheckFramebufferStatus( GL_FRAMEBUFFER )

GlBindFramebuffer( GL_FRAMEBUFFER, framebuffer ) GlTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE ) GlTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE ) GlTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ) GlTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ) GlBindTexture( GL_TEXTURE_2D, depth_texture ) Platform: Android OpenGL ES 2.0 I am using FBO, there is a texture attached to this FBO, after use, I use glDeleteFramebuffers to release FBO, the question is: Do I need to manually release the te. I got the following code working perfectly fine on iOS and Android: unsigned int depth_texture = 0,

Opengl es 2.0 draw framebuffer