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				My glass is Dark...
				Posted: Mon May 14, 2007 3:18 pm
				by jedt3d
				 
 
I've tried to learn KRay 1.7OB2. With my scene setting it's work ok when render via FPrime but got some problem with KRay. The glass is dark.
Material setting. (FYI: BSDF shader isn't affacted much after tried to disable/enable it)
 
 
 
 
Render from FPrime 3.01
 
Render from KRay 1.7OB2
 
What can I do with KRay setting or have to set my material ?
 
			
					
				
				Posted: Mon May 14, 2007 3:30 pm
				by florian
				Hi,
Shaders wont work with fprim and Kray so you can kick it out.
Try setting diffuse and secularity to 0%. Glass does not really have and diffuse reflection and Kray does not like Specularity, its a fake effect anyway and raytracing it won´t take long.
Do you have all raytracing flags turned on in the global render settings?
Florian
			 
			
					
				
				Posted: Mon May 14, 2007 5:11 pm
				by erwin zwart
				and turn off doublesided, kray does calculate without airpolygons or any other stuff like that, just make glass volume and geometry is ready for the right refraction.
			 
			
					
				
				Posted: Mon May 14, 2007 5:41 pm
				by jedt3d
				Hey guys, that's my false and my embarrassment. 
I've not turn on Raytrace for reflection/refraction 
 
How can I forgot the simple things like this haha
well but thank you for suggestion too. It's help me understand it more.
 
			
					
				
				Posted: Tue May 15, 2007 9:14 pm
				by Captain Obvious
				Why do you have diffuse on your glass?
			 
			
					
				
				Posted: Wed May 16, 2007 3:51 am
				by jedt3d
				Hi, Capt.
   I'm not sure about LW Mat, please suggest me too if I'm wrong.
   I think if I want a dark glass, I've to reduce the diffuse down, like when I make a metallic material. I will use a low diffuse, and make it shinny and reflective.
   Actually, I want a clear, a bit green glass when we see from some angle and shold be a bit dark glass too. I've no idea how can I do that. I'll try to post some experiment or some example soon.
   Thanks for watching!
			 
			
					
				
				Posted: Sat May 19, 2007 7:07 pm
				by Captain Obvious
				Glass should NEVER have any diffuse at all, unless it's fritted or sandblaster or something such. The shininess is completely unrelated to your diffuse setting.