www.kraytracing.com

Hi all,

when using a gradient texture as color -> Input Parameter: Light Incidence and then choosing the Light, LightWave will crash when starting Kray's render process. Is this a known bug or limitation?
Thanks in advance.

LW 3D: 9.3.1 WinXP32
Kray 1.7 OB6.1

That was new to me anyway.. Will try to confirm it.

Yep that one was already reported so it's a confirm

Thanks Silverlw.

The bug still exists in OB6.5 and not only affects the colorchannel, same crash happens when i connect a gradient to the reflection- or transparantiechannel. Needed for great looking glass.

Great glass? Don't you mean incidence angle instead of light incidence? I don't know how light incidence is useful for glass...

If it's incidence angle that is crashing, then it's a new bug, although I doubt it since I use it all the time.

Yep, you're right. I meant the incidence angle. I've attachted two screenshots. The first (named 1.jpg) is my material as i would use it in LW. The second is an lighter version since Kray doesn't need the spotinfo for airpolys.

Oke, more issues at a "fun-project". This time, i've set up my glass using the old-fashion surface editor. I get strange triangles rendered out of kray.
These do not appear in lw. BTW the object is a frozen subpatch (poly only therefore), 'cause of matching the liquid with the glass.

I've attached two images, a lw and a kray render, all the same settings.

I've also seen triangles like that with Kray renders. I've got rid of them by freezing the model at a higher level of subdivision. This is not really a cure - I suspect the triangles just become too small to see - and it slows down rendering of course, but it does mean you can get a decent render.

Phil

Are the polys coplanar? Try scaling the liquid up a bit and re-render it.