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Radiosity : SunStudy Breakdown ???


demo38
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I have a Daylight system, animating from morning to night. (Using Logarithmic Exposure Control with Exterior Daylight checked.) Radiosity, initial quality 85%, 2 Iterations, Global Sub mesh enabled at 20'.

 

??? When the sun is low, some surfaces seem to break down into glowing blue lava? Cool, but undesired right now. When the sun is higher, no breakdown at all...

 

Any thoughts on the best way to adjust for this? I'm sure it's something I'm doing, I'm just not sure what yet?

 

 

sunStudy2.jpg

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Here is a sample Max file, still having the same problem. Mesh size doesn't seem to fix the problem, neither on the iterations... The radiosity solution has been calculated in this file, at 7am, which breaks down.

 

sunStudy.max

 

Anyone have an idea of what is causing this?

 

I'm trying to use Max 5.1's built in radiosity using a Daylight system and IES Sun.

 

This image is 7AM... Blue breakdown areas...

breakdown_7am.jpg

 

This image is 1PM... Renders just fine...

fine_1pm.jpg

 

Thanks in advance.

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