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Noise problem at high SL

Posted: Thu Feb 26, 2009 8:39 pm
by Assistant
Hi

I have problem with noise.
I have been looking over the materials but can realy find what give so mutch noise.

I have turned of all the Caustic Layers

Im light the whole scene with HDR images. on v3 image i reduzed the size and blured the ilumination HDR. But cept the reflection HDR in high quality.
The material on the car or the body is a BSDF

first layer (top)
blending weight 50
Reflectance 0 have a bitmap atached
Roughness 99
Anisotropy 0
Angle 0
Bump 0


second layer (botom)
blending weight 50
Reflectance 0 have a bitmap atached
Roughness 10
Anisotropy 0
Angle 0
Bump 0

SL20 car paint
Image

changed material to the one above SL13
Image

sized and blured HDR, SL20
Image

pleas help

Posted: Thu Feb 26, 2009 9:58 pm
by -Adrian
That's pretty odd man. Could you try using a mesh-emitter to compare? There are certain HDR images, that give massive noise. I see you blurred it, but just to rule that out.

Material seems fine.

Posted: Thu Feb 26, 2009 10:10 pm
by Fernando Tella
-Adrian wrote:Material seems fine.
Unless textures have too white pixels.

Posted: Fri Feb 27, 2009 9:04 am
by Assistant
-Adrian wrote:That's pretty odd man. Could you try using a mesh-emitter to compare? There are certain HDR images, that give massive noise. I see you blurred it, but just to rule that out.

Material seems fine.
I can do a render like that during the day.
I will mount this one in a photo that why im using HDR to light it from that location.


The material Im using is just grey and red in collor nothing is going over the RGB 235
So the problem of to bright or to dark (Lowest RGB 20)

I have done some more adjustments and put it for render during the night so will se how it looks like when i come back to the office.