private void OnWillRenderObject()
{
AntiPortalCuller culler = Camera.current.GetComponent <AntiPortalCuller>();
if (culler != null && culler.enabled)
{
if (this.isStatic == false)
{
//a GameObject maybe render multiple times in one frame, just update bounds once
if (this.lastFrame != Time.frameCount)
{
this.bounds = this.renderer.bounds;
this.lastFrame = Time.frameCount;
}
}
culler.AddOccludee(this);
}
}
void OnGUI()
{
GUIStyle style = new GUIStyle();
style.fontSize = 26;
GUI.Label(new Rect(0, 0, 100, 100), " " + fps.ToString("f2"), style);
if (GUI.Button(new Rect(0, 100, 100, 100), ""))
{
AntiPortalCuller culler = Camera.main.GetComponent <AntiPortalCuller>();
culler.enabled = !culler.enabled;
Camera.main.useOcclusionCulling = !culler.enabled;
}
//if (GUI.Button(new Rect(0, 100, 100, 100), ""))
//{
// Bounds[] b = new Bounds[10];
// bool[] v = new bool[10];
// NativeCull.Cull(b, v);
//}
}
private void OnWillRenderObject()
{
Camera camera = Camera.current;
AntiPortalCuller culler = camera.GetComponent <AntiPortalCuller>();
if (culler != null && culler.enabled)
{
Vector2 min = Vector2.positiveInfinity;
Vector2 max = Vector2.negativeInfinity;
for (int i = 0; i < 8; i++)
{
Vector3 corner = this.corners[i];
Vector3 screenPos = camera.WorldToViewportPoint(corner);
//if occluder cross with camera's near plane, ignore this occluder
if (screenPos.z < camera.nearClipPlane)
{
return;
}
//if occluder cross with camera's far plane, this occluder maybe too far and no renderer in frustum will be occluded
if (screenPos.z > camera.farClipPlane)
{
return;
}
bool visible = true;
if (screenPos.x < -1.0f)
{
screenPos.x = -1.0f;
visible = false;
}
else if (screenPos.x > 1.0f)
{
screenPos.x = 1.0f;
visible = false;
}
if (screenPos.y < -1.0f)
{
screenPos.y = -1.0f;
visible = false;
}
else if (screenPos.y > 1.0f)
{
screenPos.y = 1.0f;
visible = false;
}
this.cornerVisible[i] = visible;
if (screenPos.x < min.x)
{
min.x = screenPos.x;
}
else if (screenPos.x > max.x)
{
max.x = screenPos.x;
}
if (screenPos.y < min.y)
{
min.y = screenPos.y;
}
else if (screenPos.y > max.y)
{
max.y = screenPos.y;
}
}
this.screenArea = (max.x - min.x) * (max.y - min.y);
culler.AddOccluder(this);
}
}
