OpenGL error when using Cycles engine #41314

New Issue

dru banerjee · 2014-08-04T08:23:24+02:00

dru banerjee commented

2014-08-04 08:23:24 +02:00

Win 8.1 AMD64 Radeon

2.71 e7b396c from Buildbot,

Intermittent behavior - simple object, simple material, cycles engine hit the openGL render button, fails with this error:

'Failed to create OpenGL off-screen buffer, GPUFrameBuffer: framebuffer incomplete error 1282 'Invalid operation'

Does not do it in stable 2.70a.

Some tests suggest that if you are in 'rendered' view and hit the render openGL button it will fail. And also after you leave 'rendered view' it will fail the first time you press it.
So to summarize: if you are in 'rendered view' it will (almost) always fail to make an OpenGL render.
If you have been in rendered view it will fail the first time, and succeed after.

Here is the procedure to (hopefully)to recreate error. Open Blender. Load Factory settings. Switch to cycles, change material, world and lamp to cycles versions by deleting them and hitting new, or open attached file. Switch to rendered view. Hit OpenGL render button. Fail. Switch back to solid view. Hit openGL render button. fail. Hit it again. Renders!

Hope this report is detailed and complete.

OpenGL_fail.blend

Win 8.1 AMD64 Radeon 2.71 e7b396c from Buildbot, Intermittent behavior - simple object, simple material, **cycles engine** hit the openGL render button, fails with this error: 'Failed to create OpenGL off-screen buffer, GPUFrameBuffer: framebuffer incomplete error 1282 'Invalid operation' Does not do it in stable 2.70a. Some tests suggest that if you are in 'rendered' view and hit the render openGL button it will fail. And also after you leave 'rendered view' ***it will fail the first time*** you press it. So to summarize: if you are in 'rendered view' it will (almost) always fail to make an OpenGL render. If you have been in rendered view it will fail the first time, and succeed after. Here is the procedure to (hopefully)to recreate error. Open Blender. Load Factory settings. Switch to cycles, change material, world and lamp to cycles versions by deleting them and hitting new, or open attached file. Switch to rendered view. Hit OpenGL render button. Fail. Switch back to solid view. Hit openGL render button. fail. Hit it again. Renders! Hope this report is detailed and complete. [OpenGL_fail.blend](https://archive.blender.org/developer/F101441/OpenGL_fail.blend)

dru banerjee commented

2014-08-04 08:23:24 +02:00

Changed status to: 'Open'