User Guide

textureTransformList 1037
To tile the image twice along its horizontal axis, use
shaderReference.textureTransform.scale(0.5, 1.0, 1.0). Scaling on the Z axis
is ignored.
To offset the image by
point(xOffset,yOffset), use
shaderReference.textureTransform.translate(xOffset,yOffset,0.0). Translating by
integers when the shader’s
textureRepeat property is TRUE will have no effect, because the width
and height of the texture will be valued between 0.0 and 1.0 in that case.
To apply a rotation to a texture layer, use
shaderReference.textureTransform.rotate(0,0,angle). Rotations around the Z axis are
rotated around the (0,0) 2d image point, which maps to the upper left corner of the texture.
Rotations about the X and Y axes are ignored.
Just as with a model's transform,
textureTransform modifications are layerable. To rotate the
texture about a point(xOffset,yOffset) instead of point(0,0), first translate to point(0 - xOffset,
0 - yOffset), then rotate, then translate to point(xOffset, yOffset). The
textureTransform is
similar to the shader’s
wrapTransform property with the following exceptions. It is applied in 2d
image space rather than 3d world space. As a result, only rotations about the Z axis and
translations and scales on X and Y axes are effective. The transform is applied regardless of the
shaderReference.textureMode setting. The wrapTransform, by comparison, is only effective
when the
textureMode is #wrapPlanar, #wrapCylindrical, or #wrapSpherical.
Example
This statement shows the textureTransform of the first texture in the first shader used by the
model gbCyl3:
put member("Scene").model("gbCyl3").shader.textureTransform
-- transform(1.0000, 0.0000, 0.0000,0.0000, 0.0000, 1.0000, \
0.0000, 0.0000, 0.0000, 0.0000, 1.0000, 0.0000, 0.0000, 0.0000, \
0.0000, 1.0000)
The following statement halves the height and width of the first texture used by the shader named
gbCyl3. If the
textureRepeat property of gbCyl3 is set to TRUE, four copies of the texture will be
tiled across the shader.
member("Scene").shader("gbCyl3").textureTransform.scale = \
vector(0.5, 0.5, 1)
This statement rotates the first texture used by the shader gbCyl3 by 90° from vector(0, 0, 0):
member("Scene").shader("gbCyl3").textureTransform.rotation = \
vector(0, 0, 90)
textureTransformList
Usage
shaderReference .textureTransformList[textureLayerIndex]
member(whichCastmember).shader(ShaderName).textureTransformList\
[textureLayerIndex]
member(whichCastmember).shader[shaderListIndex].texture\
TransformList[textureLayerIndex]
member(whichCastmember).model(modelName).shader.texture\
TransformList[textureLayerIndex]
member(whichCastmember).model(modelName).shaderList\
[shaderListIndex]. textureTransformList[textureLayerIndex]