PDA

View Full Version : How can i handle a large file?

Ministry
06-04-2006, 05:43 AM
Hi, i ve created a village scene with lots of trees and bushes which i converted the painteffects to polygons so that i can have a lot of control over the shaders and shadow details. The problem is now i can't render the scene as the meshes have become heavy. But the output looks pretty good with detailed shadows and texture details.

The scene consists of nearly 25 trees all are painteffects and converted to polygons and few huts and a river flow that divides the village in two.. The scene is pretty simple but the meshes r heavy as the client needs details in every angle. Its a fly through camera so i can't use textured tree in the plane. For preview it takes a long time :buttrock: and i can't handle the file. :sad:

Can anybody help me with how files are handled in this situation..?

Thanks in advance.

WHERE THERE IS LIGHT, THERE IS HOPE.
ExP
06-08-2006, 10:30 PM
It really depends on the renderer and how and when you load your objects into ram as they are being rendered.

-If you are using Mental Ray do some researches on PlaceHolder objects and RAM allocation.
-Also depending on your animation package and renderer take a look at Dynamic Poly Reduction features. What this does, is setting up a script that dynamically reduces polygon on objects far away from the camera, and increases them as your object gets closer to the camera.
- A simple trick: if your trees are all similar, make sure they are instances of a main tree object. This alone can save your shot...
-Render in separate passes and/or separate layers and composite them later (for example, a first render pass of the ground only, a second pass for shadows, a third for the trees etc...).

Cheers.
AndrewRaZ
06-09-2006, 08:35 AM
yes, placeholders are a must for most ultra-high poly scenes.

take a look at bsp optimizations.

command line rendering

do a search, there's lots of threads on this topic for just about every program and renderer.
Ministry
06-11-2006, 08:20 AM
It really depends on the renderer and how and when you load your objects into ram as they are being rendered.

-If you are using Mental Ray do some researches on PlaceHolder objects and RAM allocation.
-Also depending on your animation package and renderer take a look at Dynamic Poly Reduction features. What this does, is setting up a script that dynamically reduces polygon on objects far away from the camera, and increases them as your object gets closer to the camera.
- A simple trick: if your trees are all similar, make sure they are instances of a main tree object. This alone can save your shot...
-Render in separate passes and/or separate layers and composite them later (for example, a first render pass of the ground only, a second pass for shadows, a third for the trees etc...).

Cheers.

Thanks a lot. i think i need to look for scripts or thread to do what u said.
That was really helpful.
CGTalk Moderation
06-11-2006, 08:20 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.