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Is something wrong with my render settings? 
Posted: 18 July 2013 11:53 AM   [ Ignore ]
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Hi,

I’m rendering a scene with some lighting and the lighting fades out over distance like a light normally would. E.g the further away the light is, the fainter the light is.

However when it gets fainter it gets faint in these blocks and not in a smooth gradient. If you look at the picture hopefully it will make sense.

Many thanks for your help guys! You’re constantly awesome!

Nathan

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Posted: 18 July 2013 11:53 AM   [ Ignore ]   [ # 1 ]
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P.S. Lighting is not finished yet

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Posted: 18 July 2013 12:10 PM   [ Ignore ]   [ # 2 ]
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The banding looks like a shadow-bias issue - it may be too low, so that surfaces (sometimes) shadow themselves. Try raising the shadow bias a bit (it’s an offset, in cm, so don’t go overboard or items will seem to float). If you are using depth-mapped shadows switching to ray-traced will probably help - the resolution of DSMs is fixed and is too low for large environments.

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Posted: 18 July 2013 01:57 PM   [ Ignore ]   [ # 3 ]
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it helps if you tell us what program you are using. Just for future reference when asking a question, include if you are using Studio, Poser, Carrara, Bryce etc, that way the community can better answer your question. Some times a fix for Studio won’t be the same for Poser etc

anyway, Richard is probably right, so give that a try

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Posted: 18 July 2013 04:56 PM   [ Ignore ]   [ # 4 ]
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If this is Daz Studio I am guessing it could be the shading rate, what is it set to. 1.00? If that is the case drop it down to 0.20.

Yes it could also be Sahdow Bias. I find a value of 0.10 works for the most part.

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Posted: 18 July 2013 05:37 PM   [ Ignore ]   [ # 5 ]
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Richard Haseltine - 18 July 2013 12:10 PM

The banding looks like a shadow-bias issue - it may be too low, so that surfaces (sometimes) shadow themselves. Try raising the shadow bias a bit (it’s an offset, in cm, so don’t go overboard or items will seem to float). If you are using depth-mapped shadows switching to ray-traced will probably help - the resolution of DSMs is fixed and is too low for large environments.

Cheers Richard! Yeah I’ve done it and it’s worked pretty well, just gotta make sure once I put the other lights in that it doesn’t mess it up! Thanks!

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Posted: 18 July 2013 06:07 PM   [ Ignore ]   [ # 6 ]
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Szark - 18 July 2013 04:56 PM

If this is Daz Studio I am guessing it could be the shading rate, what is it set to. 1.00? If that is the case drop it down to 0.20.

Yes it could also be Sahdow Bias. I find a value of 0.10 works for the most part.

It’s poser and the shading rate is already at 0

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Posted: 19 July 2013 06:01 AM   [ Ignore ]   [ # 7 ]
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Wilkes Animations - 18 July 2013 06:07 PM
Szark - 18 July 2013 04:56 PM

If this is Daz Studio I am guessing it could be the shading rate, what is it set to. 1.00? If that is the case drop it down to 0.20.

Yes it could also be Sahdow Bias. I find a value of 0.10 works for the most part.

It’s poser and the shading rate is already at 0

In Poser you can edit the resolution of shadow maps, they are a parameter on the light. That won’t affect the banding but it can help the smoothness of shadow edges.

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