Vray and RPC shadows

aligrafix · April 3rd, 2007

Guys, i have a problem with RPC shadows in vray. RPC cars give their shadows with vray and they are fine but the RPC shadow of people isnt working fine here, what should i do, is there any solution?

Trevor Tizard · April 3rd, 2007

Personally I would not use RPC's with Vray. I do a separate pass with the scan line renderer and comp them in with photoshop. This allows me to adjust the lighting of the RPC to match the image better, and add better shadows.

dra3 · April 3rd, 2007

you know guys,,,i just dont know why those two cant work together,,,if rpc can work with vray then our lives will be much more easier,,,

Trevor Tizard · April 3rd, 2007

Vray is a GI renderer and RPC's are simply a collection of images applied at rendering time, so nothing for Vray to calculate against. Even with scanline or MentalRay the results never match the rest of the scene.

lmd33 · August 23rd, 2007

rpc & vray have worked for me for years in viz4. i am having the same shadow problem as 'aligrafix' in max9 vr1.5. no shadows.
again, does anyone have a solution?

lmd33 · August 23rd, 2007

ok, so its working now. not sure what was wrong before. whatever the case, the rpc has to be moved out of the 'exclude' colomn in the light's shadow exclude box. just turning on the rpc shadow doesnt shift it for you like it did previously.

okmijun · August 24th, 2007

Quote:

Originally Posted by aligrafix

Guys, i have a problem with RPC shadows in vray. RPC cars give their shadows with vray and they are fine but the RPC shadow of people isnt working fine here, what should i do, is there any solution?

I am suprised really indeed, from which version Vray support RPC? As I can remember RPC were useless for Vray?
So your cars rendering fine? Only problems with people?
Can you please post some work with RPC cars?
How about trees, bushes...etc

aligrafix · August 26th, 2007

I will post some of work here. Actually i was off for 6 days because of infection in my eyes. I am getting better. i shall post here after 2 or 3 days my results. Thanks

Thablanch · August 27th, 2007

You can also turn the self illum. off, so that light can do the job propreley.

Maxer · August 28th, 2007

I've had the same problem with people and I've never found a good solution to the problem. I did talk to the Archvision rep and the DVC this year and he said they were working on a new type of RPC that would interact with GI but he couldn’t tell me when it would be ready.

April 3rd, 2007	#1 (permalink)
aligrafix Senior Member Join Date: Apr 2006 Location: Pakistan Posts: 138 Name: Ali Rizwan	Vray and RPC shadows Guys, i have a problem with RPC shadows in vray. RPC cars give their shadows with vray and they are fine but the RPC shadow of people isnt working fine here, what should i do, is there any solution?

April 3rd, 2007	#2 (permalink)
Trevor Tizard Senior Member Join Date: Jun 2005 Location: London - ish Age: 38 Posts: 435 Name: Trevor Tizard	Re: Vray and RPC shadows Personally I would not use RPC's with Vray. I do a separate pass with the scan line renderer and comp them in with photoshop. This allows me to adjust the lighting of the RPC to match the image better, and add better shadows.

April 3rd, 2007	#3 (permalink)
dra3 Senior Member Join Date: May 2005 Location: Manhattan, New York Age: 27 Posts: 141 Name: Aldrin Cruz	Re: Vray and RPC shadows you know guys,,,i just dont know why those two cant work together,,,if rpc can work with vray then our lives will be much more easier,,, __________________ Inspiration is what drives me most,,,

April 3rd, 2007	#4 (permalink)
Trevor Tizard Senior Member Join Date: Jun 2005 Location: London - ish Age: 38 Posts: 435 Name: Trevor Tizard	Re: Vray and RPC shadows Vray is a GI renderer and RPC's are simply a collection of images applied at rendering time, so nothing for Vray to calculate against. Even with scanline or MentalRay the results never match the rest of the scene.

August 23rd, 2007	#5 (permalink)
lmd33 Junior Member Join Date: Apr 2006 Location: Port Macquarie Posts: 3 Name: Lachlan Miles	Re: Vray and RPC shadows rpc & vray have worked for me for years in viz4. i am having the same shadow problem as 'aligrafix' in max9 vr1.5. no shadows. again, does anyone have a solution?

August 23rd, 2007	#6 (permalink)
lmd33 Junior Member Join Date: Apr 2006 Location: Port Macquarie Posts: 3 Name: Lachlan Miles	Re: Vray and RPC shadows ok, so its working now. not sure what was wrong before. whatever the case, the rpc has to be moved out of the 'exclude' colomn in the light's shadow exclude box. just turning on the rpc shadow doesnt shift it for you like it did previously.

August 26th, 2007	#8 (permalink)
aligrafix Senior Member Join Date: Apr 2006 Location: Pakistan Posts: 138 Name: Ali Rizwan	Re: Vray and RPC shadows I will post some of work here. Actually i was off for 6 days because of infection in my eyes. I am getting better. i shall post here after 2 or 3 days my results. Thanks

August 27th, 2007	#9 (permalink)
Thablanch Senior Member Join Date: Feb 2005 Location: Montreal Age: 31 Posts: 104 Name: Alain Blanchette	Re: Vray and RPC shadows You can also turn the self illum. off, so that light can do the job propreley.

August 28th, 2007	#10 (permalink)
Maxer Moderator Join Date: Feb 2004 Location: USA Age: 34 Posts: 2,491 Name: Devin Johnston	Re: Vray and RPC shadows I've had the same problem with people and I've never found a good solution to the problem. I did talk to the Archvision rep and the DVC this year and he said they were working on a new type of RPC that would interact with GI but he couldn’t tell me when it would be ready. __________________ “There is no spoon” http://devinjohnston.cgsociety.org/gallery/

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