public void Execute()
{
List <MLight> allSpotLight = MLight.avaliableSpotShadowIndices;
List <MLight> allPointLight = MLight.avaliableCubemapIndices;
UIntPtr * allPtr = stackalloc UIntPtr[max(spotExists ? allSpotLight.Count : 0, pointExists ? allPointLight.Count : 0)];
int ptrCount = 0;
if (spotExists)
{
for (int i = 0; i < allSpotLight.Count; ++i)
{
ref Cone c = ref allSpotLightPosition[i];
float3 dir = c.vertex - cameraPos;
if (!MathLib.ConeIntersect(allSpotLightPosition[i], MathLib.GetPlane(dir, cameraPos + dir * shadowDistance)))
{
allPtr[ptrCount] = new UIntPtr(MUnsafeUtility.GetManagedPtr(allSpotLight[i]));
ptrCount++;
}
}
for (int i = 0; i < ptrCount; ++i)
{
MLight ml = MUnsafeUtility.GetObject <MLight>(allPtr[i].ToPointer());
ml.RemoveLightFromAtlas(false);
ml.updateShadowCache = true;
}
}
public static bool ConeIntersect(Cone cone, float4 plane)
{
float3 m = cross(cross(plane.xyz, cone.direction), cone.direction);
float3 Q = cone.vertex + cone.direction * cone.height + normalize(m) * cone.radius;
return(PointInsidePlane(cone.vertex, plane) || PointInsidePlane(Q, plane));
}
public void Init(Camera cam, float shadowDist)
{
cameraPos = cam.transform.position;
shadowDistance = shadowDist;
List <MLight> allSpotLight = MLight.avaliableSpotShadowIndices;
List <MLight> allPointLight = MLight.avaliableCubemapIndices;
if (allSpotLight != null && allSpotLight.Count > 0)
{
allSpotLightPosition = new NativeArray <Cone>(allSpotLight.Count, Allocator.Temp, NativeArrayOptions.UninitializedMemory).Ptr();
for (int i = 0; i < allSpotLight.Count; ++i)
{
MLight ml = allSpotLight[i];
Transform tr = ml.transform;
allSpotLightPosition[i] = new Cone(tr.position, ml.light.range, tr.forward, ml.light.spotAngle);
}
spotExists = true;
}
else
{
spotExists = false;
}
if (allPointLight != null && allPointLight.Count > 0)
{
allPointLightPosition = new NativeArray <float4>(allPointLight.Count, Allocator.Temp, NativeArrayOptions.UninitializedMemory).Ptr();
for (int i = 0; i < allPointLight.Count; ++i)
{
MLight ml = allPointLight[i];
Transform tr = ml.transform;
allPointLightPosition[i] = float4(tr.position, ml.light.range);
}
pointExists = true;
}
else
{
pointExists = false;
}
}