I've been doing searches regarding my issue (which may be one or two problems depending upon whether the second is caused by the first) but nothing that is clear enough for me to fix it.
I am running Blender 2.63.0 64bit release version 45996 on a Windows 7 64bit OS. Stats:
Intel i7 2600k 3.4 GHz quad core.
16 GB RAM
Radeon HD 7970 w/ 3 GB VRAM
With LuxRender 1.0RC1 pylux version 1.0RC1
When trying to assign a material to the default cube the material preview area is blacked out and when hitting F12 to export the scene nothing happens. Here is the Blender console output:
I found a rather terse post that mentions a render_smallluxgpu.py file but no indication as to where that file should be placed. The post also mentioned this issue being mentioned elsewhere - but not that I could find through the forum search function where the issue is discussed in a way understandable by someone with very rusty programming skills. Also, that post did not address the luxcleanup() being called from within the world block error.
I've spent most of my afternoon installing, uninstalling, and trying out different versions of Lux to try and get it working. At one point I had it working where I could export my blender scene and LuxRender would render it - but there were no material previews within Blender. I know, I should have left well-enough alone, but I thought it less efficient to build a test object for every material I wanted to place. I now can't remember what version was working.
Anyway, sorry if this is a re-post but I did honestly look through the forums for a clear answer and couldn't find one.
Addendum: I installed a copy of pylux.py and associated folder into my Blender 2.62 addons folder and it ran like a charm, material previews were there - external renderer launched and began a render of my test scene beautifully. So I know that my installation of LuxRender is working and that I am placing the addon files in their correct places. The problem appears to be the BMesh issue. I'm still not sure what I did to get LuxRender to run in 2.63 at all (even without the previews.)
