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156 Chapter 17: Rendering
UVs, or symmetrical mapping. If you are
working with a character or other model that has
mirrored UVs, we recommend that you follow this
procedure:
1. Either add an Unwrap modifier or go into an
existing Unwrap modifier where the symmetry
exists.
2. Move half of the overlapping texture
coordinates on the W axis so t hat they’re
slightly offset from the other half.
RenderToTexturewillusethetexture
coordinates with the higher W value.
Edit Normals Modifier Mak es Normal
Bump Mapping Incorrect
Don’t apply an Edit Normals modifier (page 1–634)
to the low-res object. Normal bump projection
relies on the low-res object having st andard
normals, and altering them causes normal bump
maps to have unpredictable results.
R ender to Tex t ures Di al og
Rendering menu > Render To Texture > Render to Texture
dialog
Rendering to texture, or “texture baking,” is
controlled by this dialog. Most of this dialog’s
controls are contained in its rollouts.
See also
General Settings rollout (page 3–157)
Objects To Bake Rollout (page 3–158)
Output Rollout (page 3–160)
Baked Material Rollout (page 3–162)
Automatic Mapping Rollout (page 3–163)
Procedures
To bake an object’s texture:
There are a lot of options for rendering to textures.
These are the basic overall steps.
1. Select an object.
Ideally, the object w i l l have a texture assigned
toit,orlightsandshadowsthatfallonit,and
so on.
2. Choose Rendering > Render To Texture.
3. Inthesamedialog,gototheOutputrollout.
4. Click Add, and in the Add Texture Elements
dialog, choose the element(s) you want to
render.
5. Set Target Map Slots, if necessary.
6. Click Render.
Theelementsyouchosetorenderarerendered
tofiles,andthebakedtextureisdisplayedin
shaded viewports.
To bak e the tex ture of multiple objects:
1.
Set up the texture-baking parameters of each
object you want to bake. This corresponds to
steps 2 through 5 of the previous procedure.
2. In the Objects To Ba ke rollout, change All
Selected to All Prepared.
3. Click Render.
Textures are rendered for all the objects you
previously set up.
Interfa ce