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Rendering large scene problem
show user profile  cdmask79
HI all,

I am currently working in an exterior project with lot of high poly trees ans shrubs and blocks of buildings. it also contain high detailed car with reflection. its take huge time to render 720x405 size image with low or medium quality setting in vray. is there any script or work around to reduce the render time.

i remember there is a script which increase the poly count when the camera is near and shows low when the camera is far away.can some one help me on this?

Thanks in advance.

any script or any suggestions welcome

client is not allowed me to post the image. so sorry for that.

Thank you cdmask79
read 754 times
6/23/2011 7:52:58 AM (last edit: 6/23/2011 7:52:58 AM)
show user profile  jareu
look into Distance adaptive tessellation.

also, harden up princess. Renders take a long time.

He who says it cannot be done is interrupting the man doing it.

read 750 times
6/23/2011 8:02:12 AM (last edit: 6/23/2011 8:02:12 AM)
show user profile  cdmask79
sorry i dont get exactly what you trying to say. can you please explain me ? cdmask79
read 746 times
6/23/2011 8:16:43 AM (last edit: 6/23/2011 8:16:43 AM)
show user profile  jareu
What I mean is, renders just take a long time to produce. sometimes hours, sometimes a whole day or more. Its normal, and even expected in a final production render. Part of the skill of being a 3D artist is knowing how to optimise where needed, or understanding the tradeoffs between quality and speed.
In the end, if it is for a decent image with alot going on inside, expect a long render time.

Distance adaptive tesselation is what you mentioned before, where the poly count is adjusted depending on the distance to the camera, but it is mainly for games, where the rendering time is somewhere in the order of 1/60 of a second.

for a professional render in Vray, bite the bullet and wait for your render to finish.
If this is for a client, I suggest doing one of three things:
charging for hire of your render machine, investing in a separate computer to render while you work on other projects, or paying for an online render farm which will pump out in 10 minutes, what will take your computer 20 hours.

He who says it cannot be done is interrupting the man doing it.

read 744 times
6/23/2011 8:22:24 AM (last edit: 6/23/2011 8:23:19 AM)
show user profile  cdmask79
thank u cdmask79
read 739 times
6/23/2011 8:46:19 AM (last edit: 6/23/2011 8:46:19 AM)
show user profile  ScotlandDave
Look into level of detail (LOD), and also consider using lots of planes with renders of individual trees on them ( referred to as billboards ) rather than thousands of high-poly trees..

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read 725 times
6/23/2011 2:49:40 PM (last edit: 6/23/2011 2:49:40 PM)
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