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ATI / AMD depth texture issues when using GL_DEPTH_COMPONENT

Question asked by xtr3mer on Apr 12, 2014

Hello,

 

for some reason my ATI Radeon HD 5850 seems to have problems with...

 

GL_DEPTH_COMPONENT16

GL_DEPTH_COMPONENT24

GL_DEPTH_COMPONENT32

GL_DEPTH_COMPONENT

 

When I create an FBO with only a depth texture attachment...

 

glTexImage2D(..., 0, VGFX_DEPTH_COMPONENT, Width, Height, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);

 

...and I use glBlitFramebuffer to copy the depth texture to another compatible texture

which is rendered to the screen I get strange results, some diagonal lines

(see attached Bild2.jpg and Bild3.jpg).

 

But when I use GL_DEPTH24_STENCIL8 instead, everything looks fine (see Bild1.jpg).

 

What is wrong? There are no gl errors and the frame buffer status is complete.

 

Help is really appreciated!

 

 

- Windows 8.1 but also happens on Windows 7

- Catalyst version 13.12

- I use core profile 3.2

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