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Object Occlusion Culling

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Onek8
2026-10-15 02:41:03 -07:00
parent 3273054766
commit 612a3d0a09
33 changed files with 3629 additions and 84 deletions
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37
leenkx/Sources/iron/object/CameraObject.hx
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@ -62,7 +62,20 @@ class CameraObject extends Object {
public function buildProjection(screenAspect: Null<Float> = null) {
if (data.raw.ortho != null) {
P = Mat4.ortho(data.raw.ortho[0], data.raw.ortho[1], data.raw.ortho[2], data.raw.ortho[3], data.raw.near_plane, data.raw.far_plane);
var left = data.raw.ortho[0];
var right = data.raw.ortho[1];
var bottom = data.raw.ortho[2];
var top = data.raw.ortho[3];
if (data.raw.aspect != null) {
var aspect: kha.FastFloat = data.raw.aspect;
if (screenAspect == null) screenAspect = iron.App.w() / iron.App.h();
var scale = aspect / screenAspect;
var cx = (left + right) * 0.5;
var hw = (right - left) * 0.5 * scale;
left = cx - hw;
right = cx + hw;
}
P = Mat4.ortho(left, right, bottom, top, data.raw.near_plane, data.raw.far_plane);
}
else {
if (screenAspect == null) screenAspect = iron.App.w() / iron.App.h();
@ -247,25 +260,3 @@ class CameraObject extends Object {
return new Vec4(-transform.world._20, -transform.world._21, -transform.world._22);
}
}
class FrustumPlane {
public var normal = new Vec4(1.0, 0.0, 0.0);
public var constant = 0.0;
public function new() {}
public function normalize() {
var inverseNormalLength = 1.0 / normal.length();
normal.mult(inverseNormalLength);
constant *= inverseNormalLength;
}
public function distanceToSphere(sphereCenter: Vec4, sphereRadius: Float): Float {
return (normal.dot(sphereCenter) + constant) - sphereRadius;
}
public inline function setComponents(x: Float, y: Float, z: Float, w: Float) {
normal.set(x, y, z);
constant = w;
}
}