PDA

View Full Version : Any tips on reducing the size of a scene??

strick9
09-18-2003, 02:04 AM
Hi I just got done my first nurbs scene of an automobile. I am able to render the scene in Mental Ray fine, but the Maya software render chokes about 1 quarter the way through. If I break the model into layers, and render smaller parts it renders fine. My question is does anybody have any tips or techniques for reducing the size on a scene so my machine can handle the rendering better?

Thanks.
ntmonkey
09-18-2003, 04:32 AM
If you goto File -> optimize scene size -> options, you can toggle all that will be done to your scene file. This makes it smaller and render faster in some cases. However, anything this does is UNDOABLE!!! So make sure you save out an extra copy.

hope it helps,

Lu
galactor
09-18-2003, 08:06 AM
When working with Nurbs it is always a good thing when you export them as DXF, and then import them into a new scene. This way all the unneccesery nodes are removed and the geometry is also cleaned up.

You can activate the DXF format by enabeling the ALIASTOMAYA plugin in the pluginManager.

:: Galactor ::
Madpear
09-18-2003, 09:43 AM
There one thing you MUST do when working with NURBS model: setting the tessalletion properly.

Select one object, then go to the Attribute Editor. Under Tessellation, check the Display Render Tessallation box. Then, under Advanced Tessellation, check the Enable Advanced Tessellation box, and change the Number U and V in order to have the tessallation you need.

If you have many SAME objects, you can go the Window > General Editor > Attribute Spread sheet. Under Tessallation turn Explicit Tessallation Attributes and Display Render Tessallation to on and set the Number U and V properly
gaggle
09-18-2003, 12:52 PM
Or, if you're feeling lazy, use the Render -> Set NURBS Tesselation feature.
Madpear's way of doing it would make for an even more renderable scene though.
esse
09-18-2003, 01:32 PM
there are many many things you can do. Some of them depending on the rendering thechnique you use (raytracing, raycasting).

Here are some things to consider:
- reduce number of lights
- tweak shadow settings (deptmap size, filter size, number of shadowrays, ...)
- bake procedural textures (Convert Solid Texture)
- render from a shell (with the batchrenderer), it uses less memory than having Maya open and rendering from there.
- tune the sampling in the renderglobals
- consider doing some effects in post instead of in Maya (glows, DOF, ...)
- tesselation tuning is very important (as already mentioned by MadPear)
- and many many more....
CGTalk Moderation
01-16-2006, 03:00 AM
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.