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Problem with OpenGL accumulation buffer

Posted: Thu Aug 30, 2012 5:05 pm
by GroundUpEngine
I have been messing around with basic effects in OpenGL, the effect I have had problems with is motion blur via the accumulation buffer. When I render transparent treetops and fog in the scene, then add a motion blurred object (different part of the scene) all the treetops seem to be unaffected by fog standing out with a darkened colour. :(

Accumulation buffer off:
Image
Accumulation buffer on:
Image

Re: Problem with OpenGL accumulation buffer

Posted: Fri Oct 12, 2012 8:33 am
by eatcomics
GroundUpEngine wrote:I have been messing around with basic effects in OpenGL, the effect I have had problems with is motion blur via the accumulation buffer. When I render transparent treetops and fog in the scene, then add a motion blurred object (different part of the scene) all the treetops seem to be unaffected by fog standing out with a darkened colour. :(
Well that's strange. It seems to me that those trees give you all sorts of trouble xD Sorry to report that I have no experience with this OpenGL effect, so I'm absolutely useless.

Re: Problem with OpenGL accumulation buffer

Posted: Sat Oct 13, 2012 5:59 pm
by GroundUpEngine
eatcomics wrote:It seems to me that those trees give you all sorts of trouble xD
:lol:
Project's pretty dead.. but I fixed the main problem being rendering the transparent part of the trees with techniques like manual Z sorting, but this problem is just another bug due to the limitations of either the API or my knowledge of the API. ;)

Re: Problem with OpenGL accumulation buffer

Posted: Mon Oct 15, 2012 12:27 pm
by eatcomics
GroundUpEngine wrote:
eatcomics wrote:It seems to me that those trees give you all sorts of trouble xD
:lol:
Project's pretty dead.. but I fixed the main problem being rendering the transparent part of the trees with techniques like manual Z sorting, but this problem is just another bug due to the limitations of either the API or my knowledge of the API. ;)
Oh god. I thought since there were no responses that this was a relatively new thread. Need to check dates....