A strange problem after applying displacement shader and mantra GI

[CSN0309]

Hi guys,

please check out my attachment pic,, i have totally no idea why this strange result can happen?#$#$%

I imported my model from 3DMAX into Houdini by obj format, and i have applied a choppywater to this object and a properties node with Displacement Bound(5) as well. Everything looks good when i use regional render. Bur when i apply Mantra GI to the scene and do a formal render,,,,then i got a very strange result!!?? it looks like i got wireframe appears on my model..not sure..

Has anybody knows why??? thanks in advance

[LFX]

Out of the blue I would say you need to fuse the points.

[CSN0309]

thanks first of all, but it doesn't help even i put a fuse node on it...ice_test.hipnc

[CSN0309]

ice_test.hipnc here is scene file Edited January 15, 2011 by CSN0309

[Macha]

I can't see your ice geo (next time when you upload, please lock the ice geo file sop and it will be saved with the hip file)

What happens when you reduce ray shading back to 1 and increase Z-Importance in the renderer?

Edited January 16, 2011 by Macha

[CSN0309]

sorry for that..

ya~ i think this problem is relate to the Z-Importance and Ray shading quality, when i increase the value on both, the strange wireframe disappear.

But it took long time to render..

Thanks all