I’ve been using the GI precalcing method of Animation (Prepass) and LC on an animation with a flythrough and moving objects. It’s working pretty well except it seems like my frames take waaaay longer (like 2 to 3 times longer). I noticed in the vray tutorial here ( http://help.chaosgroup.com/vray/he…

Heya Thats interesting. What are you rendering? Arch/grass/moving objects what is it. Do you use any interpolation in materials?

The materials are pretty simple. Most of them are just flat vray materials with a color of some sort. Some VRay Light materials also but they are not direct lighting, but there are about 450 lights, lighting a series of buildings and objects so maybe it’s something to do with them?

Yea its probably the lights… 450 is a high-ich number. How many samples per each light? Can you supply image of scene so I can have a look roughly whats happening? Also settings screenshot would be great too.

Had you got “use light cache for glossy materials” turned on? It’d accelerate your glossies a lot.

I cannot provide the scene, it’s an ongoing project for a client, but I can give you some details on the settings. They’re not that crazy… The lights are using the default samples of 8, no motion blur or DOF, adapdive subd of 1 and 2, 1920x1080. The settings tab are vray default, and I have about 15…

What about anty aliasing? Light samples… uhh they should be at at least 24-48 to have minimum optimum impact on scene. Other wise you are wasting time on using AA filter to clean up the noise… - which takes longer to render. Can do a test for me and disable all render layers + set gray material to…

Well the important part here is why my precalculated light takes longer to render per frame than calculating it on every frame. Like I said above, I’m using Adaptive SubD at 1 and 2, the bare minimum for good quality. I skipped using adaptive DMC because yes you are right, it took a long time to cle…

Do you have any moving objects? I think unless you can provide scene to support@chaosgroup.com and ask them for 1on1 guidance it will be hard to suggest something… No idea why its taking so long. Could be many reasons user or program bug.

It’s depends of how long your animation is…Try keeping your scenes as short as possible and your prepass wont be as long. The final renderings usually takes 2 to 3 times longer to render with a 2 frame blend. If you scene isn’t too busy you can get away with a 1 frame blend and your render times wil…

[image] Corrupt Proxy issue It’s depends of how long your animation is…Try keeping your scenes as short as possible and your prepass wont be as long. The final renderings usually takes 2 to 3 times longer to render with a 2 frame blend. If you scene isn’t too busy you can get away with a 1 frame …

Precalced GI takes longer to render image?

V-Ray for 3ds Max V-Ray for 3ds Max :: General

eyepiz September 15, 2013, 4:51pm 15

Interesting…never tied that, how do you shoot hemispheric rays in you scene?

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Precalced GI takes longer to render image?

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