ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working in three dimensions (3D)
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A square drawn with two triangles using the vertices parameter
This technique becomes useful with larger triangle meshes where most points are shared by multiple triangles.
All fills can be applied to triangles. The fills are applied to the resulting triangle mesh as they would to any other shape.
Transforming bitmaps
Flash Player 10 and later, Adobe AIR 1.5 and later
Bitmap transformations provide the illusion of perspective or "texture" on a three-dimensional object. Specifically, you
can distort a bitmap toward a vanishing point so the image appears to shrink as it moves toward the vanishing point.
Or, you can use a two-dimensional bitmap to create a surface for a three-dimensional object, providing the illusion of
texture or “wrapping” on that three-dimensional object.
A two-dimensional surface using a vanishing point and a three-dimensional object wrapped with a bitmap.
UV mapping
Flash Player 10 and later, Adobe AIR 1.5 and later
Once you start working with textures, you'll want to make use of the uvtData parameter of drawTriangles(). This
parameter allows you to set up UV mapping for bitmap fills.
UV mapping is a method for texturing objects. It relies on two values, a U horizontal (x) value and a V vertical (y)
value. Rather than being based on pixel values, they are based on percentages. 0 U and 0 V is the upper-left of an image
and 1 U and 1 V is the lower-right:
Last updated 6/6/2012
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