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View Full Version : render time has increased massively..

blinky
12-12-2006, 10:06 AM
...and to be honest i dont know why.

I just have a scene with a character in it, nothing else. its gone from rendering at, a few minutes for the whole thing to 10 minutes or so for just the head.

i havent really changed anything between versions that were ok and this current one ( well nothing that would make it slow down this much ).

i did merge the old scene into a new one - perhaps even a few times. I heard that might do bad stuff to scenes, but i dont know.

A few people at work are having a similar problem, but with different scenes... anyone know anything that could do something like this?

cheers
CoolCalb
12-12-2006, 10:35 AM
maybe accidently one or a few objects, got really high subdivision levels?check to see if all polygon meshes have normal subdee level in their Geometry Aprox property...


maybe some planted the sphere of death in your scene? :scream:
it's a 0.001 scaled sphere, with thousands of subdivisions... some animators, plant this
sphere in other people's scene, as revenge :)

but seriously.. check the Geometry aproximation of all polygon meshes..
wurp
12-12-2006, 10:40 AM
don't merge scenes unless you have to, its really a good way to screw up your scene..

if you need to transfer stuff between scenes use models instead.
blinky
12-12-2006, 10:44 AM
well no one else has had anything to do with the scene so i doubt its the sphere of death :)

what is the problem with merging? what stuff is it liable to do? i might be able to find out whats going on if i know what to look for
Tekano
12-12-2006, 11:12 AM
hello Blinky, have you turned (in render options) logged messages, information & progress on? what does it say whilst its taking long time?


do you have SSS in a shader? ive recently had an issue where this was rendering fine then all of a sudden takes a *long* time.

might be time to optimise render, bsp tree etc..
blinky
12-12-2006, 11:17 AM
i took the merge scene stuff to heart and exported the whole scene as a model then banged it in a fresh one.. it seems to have done the trick somewhat.

i lost all my layers - but small price to pay

thanks for hints and tips all
wurp
12-12-2006, 11:38 AM
it merges layers and passes as well, if you merge a few times without deleting the stuff that you dont need you end up with a mess..

also, if one of the scenes you're merging with has some corrupt data thats not related to any of the geometry in there (corrupt pass for example) you get that in the new scene as well.

well no one else has had anything to do with the scene so i doubt its the sphere of death :)

what is the problem with merging? what stuff is it liable to do? i might be able to find out whats going on if i know what to look for
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12-12-2006, 11:38 AM
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