nested objects do they use up CPU resources [Solved]

AbnerK

Hi,

If an object is inside another object does that slow down the render? I have some freebie rocks that I'm using. I'm not yet able to morph them, so doubled them up with just the bit I needed showing. My render is taking forever but, this is the first time I've rendered a complete scene. After 24 hours I've only got 96 itterations. I'd normally have finished a perfect render of a Genesis 8 figure hours ago. 

Thanks

Richard Haseltine

Well, the data is certainly being sent to the engine so it will have some impact. However, unless the rocks surface proeprties allow light to penetrate through them or scatter inside the hidden portions should not be involved in many calculations.

AbnerK

Oh, great, thanks Richard, that does make sense. I read another thread that you answered but that was about objects turned off which I never questioned, but I must have read something somewhere about the see through objects and not understood at the time. Thanks

Paintbox

Do you know of Scene Optimizer ? It allows you to quickly change material properties and even make textures smaller, so rocks that are in the distance will have smaller maps. Because say the rock has 4096px x 4096px, but ALL of them do, memory count goes up quickly. By making distant and small rocks have smaller textures you probably see big improvement as well. Also deleting normal and bump maps of distant rocks all help.

Yesterday I had an interior scene and it rendered a lot longer, and it all the walls had reflection on them and a bump map that wasnt needed. With turning reflections and bump off I saw a big improvement in my render times.

AbnerK

Ah, I thought of that later, when the render was half way through, I stopped it 60%/ 30 hours in. I thought that'll do. :-) I do have scene Optimizer but to be really honest I'd forgotten if I had it or not and couldn't remember what it was called, It's hard to look for something when you don't know what it's called. It was a small scene where most things were close up, but thanks for the tips, I'll make a note and make sure I don't forget about the Scene Optimizer. I got really enthusiastic when I started and bought everything in in sales. :-)