View Full Version : slow rendering with big scenes

10 October 2007, 09:25 AM
Hi, I have a problem with rendering a really large scene.
I have two scenes: a background scene and a character scene. The background scene is very large but renders really fast. The character scene is a lot smaller and also renders really fast. But when I import the character into the background scene and render it, it renders really slow. about 10 times slower then when I render them seperately. I found out it had to do with the raytrace shadows of the light I use. When I turn them off it renders really fast.
Does somebody know where the problem could be. Render them in seperate layers is always an option, but it isn't really a fast way to tweak the shading on the character or the background.


10 October 2007, 04:41 PM
Old thread, I know...

If you seperate the Layers (diff, spec, reflection, shadow) it shoudn't be so slow at all, even if you batch the rendering process...?!?

10 October 2007, 01:03 PM
It's a bsp issue. Read this ( article and then tweak the bsp depth value.

10 October 2007, 01:12 PM
Could be, but if he runs out of ram, he might be rendering on HDD.

Have you converted the textures to .map or .bot?

CGTalk Moderation
10 October 2007, 01:12 PM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.