All Questions
Tagged with depth-buffer opengl-es
6
questions
1
vote
0
answers
112
views
OpenGL ES - render to texture - how to preserve original depth buffer
I render to texture and attach my own depth buffer that has texture target. However, after I finish rendering I would like to set original depth buffer back.
To start rendering to texture I do:
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- 1,126
0
votes
3
answers
3k
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OpenGL ES 2.0 Shadow Mapping - depth only FBO not working due to GL_FRAMEBUFFER_INCOMPLETE_ATTACHMEN
I am trying to add simple shadow mapping to my friends gles 2.0 app. It is based on gles 2.0 and PowerVR SDK.
The problem I encounter is that FBO is not valid due to ...
1
vote
1
answer
451
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Does glScissor affect stencil and depth buffer operations?
I know glScissor() affects glColorMask() and glDepthMask(), but does it affect the stencil ...
- 115
12
votes
2
answers
10k
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How do I use depth testing and texture transparency together in my 2.5D world?
Note: I've already found an answer (which I will post after this question) - I was just wondering if I was doing it right, or if there is a better way.
I'm making a "2.5D" isometric game using OpenGL ...
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2
votes
2
answers
2k
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Disabling depth write trashes the frame buffer on some GPUs
I sometimes disable depth buffer writing via glDepthMask(GL_FALSE) during the alpha rendering of a frame. That works perfectly fine on some GPUs (like the Motorola Droid's PowerVR), but on the HTC EVO ...
- 217
11
votes
2
answers
15k
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In OpenGL, how can I discover the depth range of a depth buffer?
I am doing a GL multi-pass rendering app for iOS. The first pass renders to a depth buffer texture. The second pass uses the values in the depth buffer to control the application of a fragment shader. ...
- 985