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146 Chapter 17: Rendering
Rendered light map applied to the banana
With the light m a p, banana appears lit even when lights
are turned off.
That is texture baking in a nutshell.
For best results, Logarithmic exposure control is
recommended for Render To Texture.
If Linear or Automatic exposure controls are used,
each object will have different lighting levels,
generating a different histogram. Each object
rendersasifithadadifferentlightlevelandin
some cases, you may not get a rendering at all. This
happens because Linear and Automatic exposure
controls are view dependent.
Logarithmic Exposure Control is not view
dependent, and will reproduce the image correctly.
See the Exposure Controls (page 3–293) topic for
more information about Linear, Automatic and
Logarithmic exposure controls.
See also
Baked Texture Elements (page 3–146)
Target Map Slot Assignments (page 3–150)
Render to Texture D ialog (page 3–156)
Render to Texture: General S ettings Rollout (page
3–157)
Render to Texture: Objects to Bake Rollout (page
3–158)
Render to Texture: Output Rollout (page 3–160)
Render to Texture: Baked Material Rollout (page
3–162)
Render to Texture: Add Texture Elements Dialog
(page 3–164)
Shell Material (page 2–1600)
DirectX Manager Rollout (page 2–1464)
LightMap Shader Rollout (page 2–1614)
Metal Bump Shader Rollout (page 2–1614)
B a ked Textur e E lement s
Select objects. > Rendering menu > Render to Texture >
Render to Texture dialog > Output rollout > Click Add.
> Add Texture E le m e nts dialog > Choose elem ents to
render.
When you render to texture or “b ake” a texture,
you choose one or more elements to render. These
elements save aspects of the rendered scene: its
geometry, lighting , shadows, and so on. Some
texture elements can displa y in shaded viewports;
others require a DirectX v iewport shader (page
2–1464) to view in 3ds Max.
When you add an element to render, it appears in
alistintheObjects To Bake (page 3–158) rollout.
Inthelist,youcandisableorenablerenderingof
that indiv idual map, or select it to adjust which
components it will include.