Problem with vray sun and Physical cam for interior scene

harrowboy · August 1st, 2008

hi people, I've been trying to use just a vray sun and physical cam to lit up this interior scene, but I get the problem of those black solid lines around the places where the sun light strikes.

I have Gamma set to 2.2
Affect colors / Material Editors ticked

Vray frame buffer
Adaptive QMC / Catmull-Rom
adp. QMC sampler: min 3 / max 6, thresh 0.005
GI: Irr. map and QMC both 1.0
Irradiance map: min -3 / max 0, HSph 70 and Interp 40
Environment: GI 1.0
Color mapping: HSV dark multiplier 2.0, 1.0, 1.0 (boxes unchecked)

sun parameters: default
cam setting: ISO 200 and 1/30s @ f8

would it be the position of my sun thats causing the problem?

dave013 · August 1st, 2008

Try turning on Sub-Pixel mapping in the Color mapping rollout.

harrowboy · August 2nd, 2008

thx Dave that did solve the problem; also would know if vray lights are needed for an interior scene like this? or do I just use the photometrics as if they were real light fixtures?

moodo · August 3rd, 2008

try out with the hsv exponential turned off. i guess you dont need the hsv exponential, because you have an exposurecontrol with you vray camera.

Squareframe · August 4th, 2008

photometric lights are the way to go...and they use less memory

August 1st, 2008	#2 (permalink)
dave013 Junior Member Join Date: Aug 2007 Location: Brisbane, Australia Age: 23 Posts: 14 Name: David Higgins	Re: Problem with vray sun and Physical cam for interior scene Try turning on Sub-Pixel mapping in the Color mapping rollout.

August 2nd, 2008	#3 (permalink)
harrowboy Junior Member Join Date: Jun 2006 Location: Auckland Posts: 13 Name: Tommy Cheng	Re: Problem with vray sun and Physical cam for interior scene thx Dave that did solve the problem; also would know if vray lights are needed for an interior scene like this? or do I just use the photometrics as if they were real light fixtures?

August 3rd, 2008	#4 (permalink)
moodo Member Join Date: Aug 2006 Location: Berlin Posts: 35 Name: Olaf Dittmers	Re: Problem with vray sun and Physical cam for interior scene try out with the hsv exponential turned off. i guess you dont need the hsv exponential, because you have an exposurecontrol with you vray camera.

August 4th, 2008	#5 (permalink)
Squareframe Junior Member Join Date: Feb 2007 Location: Adelaide (South Australia) Posts: 5 Name: Pedro Torres	Re: Problem with vray sun and Physical cam for interior scene photometric lights are the way to go...and they use less memory

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