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Vray GPU, cache based rendering exponentially increasing compilation time before render.
Hi guys, I've been wondering if anyone has any workarounds or maybe its the problem of Vray itself.
I have a relatively small scene with 7 TyFlow systems that being cached before rendering and saved to disc. Usually it means that all the calculations have been already done and that Vray needs to only load this cache and render it out. Problem is:
1st frame renders in about 1 min with "preparing the scene" phase that lasts around 3 sec for it. By the 10th frame this time is over 7 min for "preparing the scene" and "starting Vray engine" phases. More surprisingly for me is that if you stop render and start it again but from the last frame, it will start again from 1 min and then exponentially build up render time. To put simple (sorry for my English), if frame 10 was 7 min, when I stop render and start from frame 10 it renders in 1 min. I already asked Tyler on TyFlow forum about this and he said that its not really TyFlows fault since cache for TyFlow is pretty much the same as PC2 cache.
I have a relatively small scene with 7 TyFlow systems that being cached before rendering and saved to disc. Usually it means that all the calculations have been already done and that Vray needs to only load this cache and render it out. Problem is:
1st frame renders in about 1 min with "preparing the scene" phase that lasts around 3 sec for it. By the 10th frame this time is over 7 min for "preparing the scene" and "starting Vray engine" phases. More surprisingly for me is that if you stop render and start it again but from the last frame, it will start again from 1 min and then exponentially build up render time. To put simple (sorry for my English), if frame 10 was 7 min, when I stop render and start from frame 10 it renders in 1 min. I already asked Tyler on TyFlow forum about this and he said that its not really TyFlows fault since cache for TyFlow is pretty much the same as PC2 cache.
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