public void QueryVisibleRenderers(DrawDevice device, RawList <ICmpRenderer> visibleRenderers)
{
int activeCount = this.cullingInfo.Count;
CullingInfo[] cullingData = this.cullingInfo.Data;
ICmpRenderer[] rendererData = this.cullingRenderers.Data;
visibleRenderers.Clear();
visibleRenderers.Reserve(activeCount);
ICmpRenderer[] visibleRendererData = visibleRenderers.Data;
int visibleCount = 0;
VisibilityFlag mask = device.VisibilityMask;
for (int i = 0; i < activeCount; i++)
{
// Check group and overlay / world visibility
if ((cullingData[i].Visibility & VisibilityFlag.AllGroups & mask) == VisibilityFlag.None)
{
continue;
}
if ((cullingData[i].Visibility & VisibilityFlag.ScreenOverlay) != (mask & VisibilityFlag.ScreenOverlay))
{
continue;
}
// Check spatial visibility
if (!device.IsSphereInView(cullingData[i].Position, cullingData[i].Radius))
{
continue;
}
// Add renderer to visible result list
visibleRendererData[visibleCount] = rendererData[i];
visibleCount++;
}
visibleRenderers.Count = visibleCount;
}
[Test] public void IsSphereInViewOrthographic()
{
Vector2 viewportSize = new Vector2(800, 600);
using (DrawDevice device = new DrawDevice())
{
device.TargetSize = viewportSize;
device.ViewportRect = new Rect(viewportSize);
device.ViewerPos = new Vector3(0, 0, 0);
device.FocusDist = 500;
device.NearZ = 100;
device.FarZ = 10000;
device.Projection = ProjectionMode.Orthographic;
// Viewport center
Assert.IsTrue(device.IsSphereInView(new Vector3(0, 0, device.FocusDist), 150));
// Just inside each of the viewports sides
Assert.IsTrue(device.IsSphereInView(new Vector3(-viewportSize.X * 0.5f - 100, 0, device.FocusDist), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, -viewportSize.Y * 0.5f - 100, device.FocusDist), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(viewportSize.X * 0.5f + 100, 0, device.FocusDist), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, viewportSize.Y * 0.5f + 100, device.FocusDist), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, 0, device.FarZ - 50), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, 0, device.NearZ + 50), 150));
// Just outside each of the viewports sides
Assert.IsFalse(device.IsSphereInView(new Vector3(-viewportSize.X * 0.5f - 200, 0, device.FocusDist), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, -viewportSize.Y * 0.5f - 200, device.FocusDist), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(viewportSize.X * 0.5f + 200, 0, device.FocusDist), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, viewportSize.Y * 0.5f + 200, device.FocusDist), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, 0, device.FarZ + 50), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, 0, device.NearZ - 50), 150));
}
}
[Test] public void IsSphereInViewPerspective()
{
Vector2 viewportSize = new Vector2(800, 600);
using (DrawDevice device = new DrawDevice())
{
device.TargetSize = viewportSize;
device.ViewportRect = new Rect(viewportSize);
device.ViewerPos = new Vector3(0, 0, 0);
device.FocusDist = 500;
device.NearZ = 100;
device.FarZ = 10000;
device.Projection = ProjectionMode.Perspective;
// Viewport center
Assert.IsTrue(device.IsSphereInView(new Vector3(0, 0, device.FocusDist), 150));
// Just inside each of the viewports sides
Assert.IsTrue(device.IsSphereInView(new Vector3(-viewportSize.X * 0.5f - 100, 0, device.FocusDist), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, -viewportSize.Y * 0.5f - 100, device.FocusDist), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(viewportSize.X * 0.5f + 100, 0, device.FocusDist), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, viewportSize.Y * 0.5f + 100, device.FocusDist), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, 0, device.FarZ - 50), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, 0, device.NearZ + 50), 150));
// Just outside each of the viewports sides
Assert.IsFalse(device.IsSphereInView(new Vector3(-viewportSize.X * 0.5f - 200, 0, device.FocusDist), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, -viewportSize.Y * 0.5f - 200, device.FocusDist), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(viewportSize.X * 0.5f + 200, 0, device.FocusDist), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, viewportSize.Y * 0.5f + 200, device.FocusDist), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, 0, device.FarZ + 50), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, 0, device.NearZ - 50), 150));
// Things that are in/visible because of perspective projection
Assert.IsFalse(device.IsSphereInView(new Vector3(-viewportSize.X * 0.5f - 100, 0, device.FocusDist * 0.5f), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(-viewportSize.X * 0.5f - 200, 0, device.FocusDist * 2.0f), 150));
}
}
[Test] public void IsSphereInViewScreenSpace()
{
Vector2 viewportSize = new Vector2(800, 600);
using (DrawDevice device = new DrawDevice())
{
device.TargetSize = viewportSize;
device.ViewportRect = new Rect(viewportSize);
device.Projection = ProjectionMode.Screen;
// Screen space mode is supposed to ignore view dependent settings
device.ViewerAngle = MathF.DegToRad(90.0f);
device.ViewerPos = new Vector3(7000, 8000, -500);
device.FocusDist = 500;
device.NearZ = 100;
device.FarZ = 10000;
// Viewport center
Assert.IsTrue(device.IsSphereInView(new Vector3(viewportSize.X * 0.5f, viewportSize.Y * 0.5f, 0), 150));
// Just inside each of the viewports sides
Assert.IsTrue(device.IsSphereInView(new Vector3(-100, 0, 0), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, -100, 0), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(viewportSize.X + 100, 0, 0), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, viewportSize.Y + 100, 0), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, 0, 10000), 150));
Assert.IsTrue(device.IsSphereInView(new Vector3(0, 0, 50), 150));
// Just outside each of the viewports sides
Assert.IsFalse(device.IsSphereInView(new Vector3(-200, 0, 0), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, -200, 0), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(viewportSize.X + 200, 0, 0), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, viewportSize.Y + 200, 0), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, 0, 1000000000), 150));
Assert.IsFalse(device.IsSphereInView(new Vector3(0, 0, -50), 150));
}
}