updateProjectionMatrix method
void
updateProjectionMatrix(
)
override
Implementation
@override
void updateProjectionMatrix() {
num near = this.near;
num top = near * Math.tan(MathUtils.DEG2RAD * 0.5 * fov) / zoom;
num height = 2 * top;
num width = aspect * height;
num left = -0.5 * width;
if (view != null && view!["enabled"]) {
var fullWidth = view!["fullWidth"]!;
var fullHeight = view!["fullHeight"]!;
left += view!["offsetX"]! * width / fullWidth;
top -= view!["offsetY"]! * height / fullHeight;
width *= view!["width"]! / fullWidth;
height *= view!["height"]! / fullHeight;
}
num skew = filmOffset;
if (skew != 0) left += near * skew / getFilmWidth();
projectionMatrix.makePerspective(
left, left + width, top, top - height, near, far);
projectionMatrixInverse.copy(projectionMatrix).invert();
}