swf_perspective

(PHP 4)

swf_perspective — Define a perspective projection transformation

说明

void swf_perspective ( float $fovy , float $aspect , float $near , float $far )

Defines a perspective projection transformation.

Note:
Various distortion artifacts may appear when performing a perspective projection, this is because Flash players only have a two dimensional matrix. Some are not to pretty.

参数

fovy: A field-of-view angle in the y direction.
aspect: The aspect ratio of the viewport that is being drawn onto.
near: The near clipping plane.
far: The far clipping plane.

返回值

没有返回值。