Vray Proxy Renders Slowly

[ctk111]

I'm new to creating/using proxies and since my render times seem really slow, I'm not sure I'm doing it correctly. I'm using some Evermotion trees and exported them as a vrmesh and automatically created the proxy object. Next I saved the max file with the proxy object and merged it into my scene. To duplicate the trees I made instances. I have approximately 16 different types of trees totaling around 130 in my scene. With the proxies in there are about 2,000,000 polys. I made a test render and after an hour the status was still in prepass. When I removed the proxies from the scene it rendered in about 3 minutes.

 

One thing I didn't do which was in a tutorial I saw was to attach the individual objects of the tree before making a mesh. Not sure if this makes a difference.

 

I'm running a xp64 with 4mb of ram, Max 9 with Vray 1.5 sp1. Any help is appreciated.

[chadw]

I am working on something similar and have not experienced render times like you are having. Maybe a jump of a few min for a test render. Your work flow sounds the same.... so I would try collapsing them and go through your 16 species and see if one of them has bad stuff happening with it. You could even test in your scene turning off all but on type and see if you are getting bad results from one and not the others. Maybe someone else has a silver bullet, but I would go through and with process of elimination find my error. Best of luck

[dinhtuan]

You can incease the Dynamic memory limit to about 1000mb. I dont know how big your vraymeshs now but dynamic ram must higher than that. You can search forum for a tutor of Brian about this

[mfured20]

it might depend on your other settings. if, for instance, you have a lot of shadow subdivisions on your main overhead light source, it takes a long time for the shadow from each leaf to be calculated. there are a lot of reasons that this could happen, not necessarily the fault of the trees themselves.

 

not attaching the tree pieces shouldn't really make a difference. thats what i did when i first started, but now i only attach them for ease of scaling.

[ctk111]

Sorry for late follow-up and thanks for all of your suggestions. I did two things to reduce the rendering time and not sure if one or both made the actual difference as I haven't had a chance to go back and test. The first thing I did was reduce the number of different types of proxies in the scene and then I turned off calculate gi on all the proxies. This brought my render times down significantly. Thanks again.

[perspectivo3d]

May be you use something from evermotion or dosch . I've once be like your problem about Vray Proxy, and I found the problem come from Trees models that I merged in to my scene with Evermotion Archmodel. In my opinion,they set up Vray Material too high and the polygons is hugh too.

 

I solving this problem by tune down some value of materials and use polygon cruncher to crunch down poolygons count to lower value as I pleased.

[rashed]

wow increasing dynamic memory limit from 400mb to 1000mb reduced my carpet proxy render time from 2:57 to 0:22... thanks