30 Jul
2015
30 Jul
'15
4:47 p.m.
https://bugs.freedesktop.org/show_bug.cgi?id=73528
--- Comment #41 from MWATTT megwattt@gmail.com --- I'm able to reproduce the bug (with commit 97ec2c694fe568e375ec7a2b85c1acb1e4666b54 reverted) with a small program after viewing a minecraft apitrace.
Apparently, if 2 textures are attached to a fbo (as GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1), GL_COLOR_ATTACHMENT1 is cleared and after that glDrawBuffers(2, {GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1}) is called, but the shader of the following drawing command doesn't write anything in the second buffer (GL_COLOR_ATTACHMENT1), then it will hang.
I've attached a small code which reproduce the hang.
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