I've been trying to render a simple glass logo for our lab and I've been having problems. I'm using Blender 2.59.0 with LuxBlend 0.8.0 on a Windows 7 64 bit machine.
Whenever I attempt to render some blender text objects with transparent material types through LuxRender, I'm getting some odd opaque black surfaces on the letters, as seen here:
This only seems to appear on the letters made mainly from straight surfaces. I've tried a variety of lighting combinations and different camera angle and settings. At the moment I'm using 6 point light sources and a couple of background planes which emit light. I've also tried increasing the subdivision of the surfaces... which helps, but still leaves tiny opaque surfaces (such as on top of the 'T'):
Even when I use the default 'Glass' material setting, I'm still getting these odd artefacts:
Could anyone advise me as to what I'm doing wrong or if there is anyway around this at the moment?
Thanks very much,