Hello,
In this tutorial i will explain how you can map one object on a 512 * 1024 texture sheet, and how you can map one object on two 512 * 512 texture sheets. Let’s start with the simple one, map an object on a 512 * 1024 map. I made a simple mesh for the occasion, not something you would map on a 512 * 1024 map, but that’s not our concern in this tutorial.
Now, basically you make your uvw map, but you only use the lower or upper half of your uvw space. Make sure you have at least one cluster very close to the edge, because that will show us where the virtual edge of the texturesheet is. Look under the scale tool for “vertical Scale”. Select all your clusters, and scale until your clusters fill the entire uvw space.
Now, render your uvw map. Make sure you set height to 512, and width to 1024. That’s all there is to it. If you now use a 512*1024 texture sheet in your diffuse slot it will be mapped correctly.
For the second one, please check Ghostscapes reply. ALOT easier
That’s all there is to it.