Reparameterize a mesh

Pick the mesh(es) you want to reparameterize.
Create a shader and click the Map button beside any parameter in the shader’s Control Window. (The specific parameter you map the Projection texture to is unimportant.)
Select the Projection texture from the Texture Procedures window.
Select a Projection type in the Projection texture’s Control Window.
Position and orient the Projection texture’s Texture Projection Object in the modeling windows.
In the Projection texture’s Control Window, set Clean Seams and Normalize Seams ON, and click the Apply Mapping button beside Project to UV. The mesh is now reparameterized.
Create a shader (or use an existing shader) that uses a surface texture only (no environment textures or solid textures), and assign it to the mesh. The surface texture now appears projected onto the mesh.
If, after rendering, you are not satisfied with the position and orientation of the texture on the mesh, you can reparameterize the mesh by repositioning and re-orienting the Projection texture’s Texture Projection Object, and then clicking the Apply Mapping button again.