public static void CalculateFrustumPlanes(Camera InCamera, ref Plane[] OutPlanes)
{
Matrix4x4 projectionMatrix = InCamera.projectionMatrix;
Matrix4x4 worldToCameraMatrix = InCamera.worldToCameraMatrix;
Matrix4x4 matrix4x = projectionMatrix * worldToCameraMatrix;
GeometryUtilityUser.RootVector[0] = matrix4x[3, 0];
GeometryUtilityUser.RootVector[1] = matrix4x[3, 1];
GeometryUtilityUser.RootVector[2] = matrix4x[3, 2];
GeometryUtilityUser.RootVector[3] = matrix4x[3, 3];
GeometryUtilityUser.ComVector[0] = matrix4x[0, 0];
GeometryUtilityUser.ComVector[1] = matrix4x[0, 1];
GeometryUtilityUser.ComVector[2] = matrix4x[0, 2];
GeometryUtilityUser.ComVector[3] = matrix4x[0, 3];
GeometryUtilityUser.CalcPlane(ref OutPlanes[0], GeometryUtilityUser.ComVector[0] + GeometryUtilityUser.RootVector[0], GeometryUtilityUser.ComVector[1] + GeometryUtilityUser.RootVector[1], GeometryUtilityUser.ComVector[2] + GeometryUtilityUser.RootVector[2], GeometryUtilityUser.ComVector[3] + GeometryUtilityUser.RootVector[3]);
GeometryUtilityUser.CalcPlane(ref OutPlanes[1], -GeometryUtilityUser.ComVector[0] + GeometryUtilityUser.RootVector[0], -GeometryUtilityUser.ComVector[1] + GeometryUtilityUser.RootVector[1], -GeometryUtilityUser.ComVector[2] + GeometryUtilityUser.RootVector[2], -GeometryUtilityUser.ComVector[3] + GeometryUtilityUser.RootVector[3]);
GeometryUtilityUser.ComVector[0] = matrix4x[1, 0];
GeometryUtilityUser.ComVector[1] = matrix4x[1, 1];
GeometryUtilityUser.ComVector[2] = matrix4x[1, 2];
GeometryUtilityUser.ComVector[3] = matrix4x[1, 3];
GeometryUtilityUser.CalcPlane(ref OutPlanes[2], GeometryUtilityUser.ComVector[0] + GeometryUtilityUser.RootVector[0], GeometryUtilityUser.ComVector[1] + GeometryUtilityUser.RootVector[1], GeometryUtilityUser.ComVector[2] + GeometryUtilityUser.RootVector[2], GeometryUtilityUser.ComVector[3] + GeometryUtilityUser.RootVector[3]);
GeometryUtilityUser.CalcPlane(ref OutPlanes[3], -GeometryUtilityUser.ComVector[0] + GeometryUtilityUser.RootVector[0], -GeometryUtilityUser.ComVector[1] + GeometryUtilityUser.RootVector[1], -GeometryUtilityUser.ComVector[2] + GeometryUtilityUser.RootVector[2], -GeometryUtilityUser.ComVector[3] + GeometryUtilityUser.RootVector[3]);
GeometryUtilityUser.ComVector[0] = matrix4x[2, 0];
GeometryUtilityUser.ComVector[1] = matrix4x[2, 1];
GeometryUtilityUser.ComVector[2] = matrix4x[2, 2];
GeometryUtilityUser.ComVector[3] = matrix4x[2, 3];
GeometryUtilityUser.CalcPlane(ref OutPlanes[4], GeometryUtilityUser.ComVector[0] + GeometryUtilityUser.RootVector[0], GeometryUtilityUser.ComVector[1] + GeometryUtilityUser.RootVector[1], GeometryUtilityUser.ComVector[2] + GeometryUtilityUser.RootVector[2], GeometryUtilityUser.ComVector[3] + GeometryUtilityUser.RootVector[3]);
GeometryUtilityUser.CalcPlane(ref OutPlanes[5], -GeometryUtilityUser.ComVector[0] + GeometryUtilityUser.RootVector[0], -GeometryUtilityUser.ComVector[1] + GeometryUtilityUser.RootVector[1], -GeometryUtilityUser.ComVector[2] + GeometryUtilityUser.RootVector[2], -GeometryUtilityUser.ComVector[3] + GeometryUtilityUser.RootVector[3]);
}
void UpdateGroupVisibility()
{
GeometryUtilityUser.CalculateFrustumPlanes(mainCam, ref camPlane);
for (int i = 0; i < renderGroup.Count; i++)
{
Bounds b = renderGroup[i].bound;
SetGroupVisible(i, GeometryUtility.TestPlanesAABB(camPlane, b), b.SqrDistance(mainCamTrans.position));
}
}
private Plane[] CalcFrustum(Camera InCamera)
{
GeometryUtilityUser.CalculateFrustumPlanes(InCamera, ref CachedPlanes);
#if UNITY_EDITOR && true
Plane[] SysPlanes = GeometryUtility.CalculateFrustumPlanes(InCamera);
for (int i = 0; i < SysPlanes.Length; ++i)
{
if (!IsEqual(SysPlanes[i], CachedPlanes[i]))
{
DebugHelper.Assert(false, "Internal error in CalcFrustum");
}
}
#endif
return(CachedPlanes);
}
private Plane[] CalcFrustum(Camera InCamera)
{
GeometryUtilityUser.CalculateFrustumPlanes(InCamera, ref this.CachedPlanes);
return(this.CachedPlanes);
}
void CustomTests()
{
GeometryUtilityUser.CalculateFrustumPlanes(Camera.main, ref CustomPlanes);
}
