Autodesk LIGHTSCAPE, Manual

Page: 132 / 362

Using Materials 7
124
Lightscape
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It is best to align textures on blocks in the Prep-
aration stage. Otherwise you must align every
instance of the block during the Solution stage.
Align textures on blocks in Isolate mode. This way
you will get the same relative placement on each
instance of the block. Furthermore, the surfaces
you select for the placement of textures must be
immediate children of the isolated block and not
part of a sub-block. For more information, see
“Modifying Block Definitions” on page 89.
Using Orthographic Projection
Use orthographic projection to project a texture
onto a plane. With orthographic projection, you can
use any of the four mapping modes. The points used
to define the projection plane also determine the
position of the texture image. If the texture is not of
a fixed size, the three points also determine its tile
size.
To apply orthographic projection:
1.
Select a surface or surfaces.
2.
Right-click and then choose Texture Alignment.
3.
Select Orthographic from the Projection list.
4. Select a mapping mode from the mapping
modes list.
5.
In the Mouse Selection mode box, enable Pick
Points. (To pick a point on a vertex, enable Snap to
Nearest Vertex.)
6. In the Texture Alignment dialog, enable the cor-
ner that you want to pick, and then click a point in
the model to position that corner. You can also posi-
tion a corner by typing its coordinates in the corre-
sponding box.
7.
Repeat step 6 to position the three corners of the
projection plane.
These points also mark the corners of the texture
image.
8.
You can move the points to scale or rotate the
texture.
Horizontal mapping modes list
Vertical mapping modes list
Upper-left
corner Lower-right corner Lower-left corner