void Update()
{
if (_isStatic != isStatic)
{
if (isStatic == true) //becoming static
{
meshKey = new FS_MeshKey(shadowMaterial, isStatic);
CalculateShadowGeometry();
FS_ShadowManager.Manager().RecalculateStaticGeometry(null, meshKey);
}
else //becoming dynamic
{
FS_MeshKey oldMeshKey = meshKey;
meshKey = new FS_MeshKey(shadowMaterial, isStatic);
FS_ShadowManager.Manager().RecalculateStaticGeometry(this, oldMeshKey);
}
_isStatic = isStatic;
}
if (!isStatic)
{
UnityEngine.Profiling.Profiler.BeginSample("CalculateShadowGeometry");
CalculateShadowGeometry();
UnityEngine.Profiling.Profiler.EndSample();
}
}
public static FS_ShadowManager Manager()
{
if (FS_ShadowManager._manager == null)
{
GameObject gameObject = new GameObject("FS_ShadowManager");
FS_ShadowManager._manager = gameObject.AddComponent <FS_ShadowManager>();
}
return(FS_ShadowManager._manager);
}
//Singleton, returns this manager.
public static FS_ShadowManager Manager (){
if (_manager == null) {
FS_ShadowManager sm = (FS_ShadowManager) FindObjectOfType(typeof(FS_ShadowManager));
if (sm == null){
GameObject go = new GameObject("FS_ShadowManager");
_manager = go.AddComponent<FS_ShadowManager>();
} else {
_manager = sm;
}
}
return _manager;
}
//Singleton, returns this manager.
public static FS_ShadowManager Manager()
{
if (_manager == null)
{
FS_ShadowManager sm = FindObjectOfType(typeof(FS_ShadowManager)) as FS_ShadowManager;
if (sm == null)
{
GameObject go = new GameObject("FS_ShadowManager");
_manager = go.AddComponent <FS_ShadowManager>();
}
else
{
_manager = sm;
}
}
return(_manager);
}
public static FS_ShadowManager Manager()
{
if (FS_ShadowManager._manager == null)
{
FS_ShadowManager fS_ShadowManager = (FS_ShadowManager)UnityEngine.Object.FindObjectOfType(typeof(FS_ShadowManager));
if (fS_ShadowManager == null)
{
GameObject gameObject = new GameObject("FS_ShadowManager");
FS_ShadowManager._manager = gameObject.AddComponent <FS_ShadowManager>();
}
else
{
FS_ShadowManager._manager = fS_ShadowManager;
}
}
return(FS_ShadowManager._manager);
}
void Update()
{
if (_isStatic != isStatic)
{
if (isStatic == true) //becoming static
{
meshKey = new FS_MeshKey(shadowMaterial, isStatic);
CalculateShadowGeometry();
FS_ShadowManager.Manager().RecalculateStaticGeometry(null, meshKey);
}
else //becoming dynamic
{
FS_MeshKey oldMeshKey = meshKey;
meshKey = new FS_MeshKey(shadowMaterial, isStatic);
FS_ShadowManager.Manager().RecalculateStaticGeometry(this, oldMeshKey);
}
_isStatic = isStatic;
}
if (!isStatic)
{
CalculateShadowGeometry();
}
}
private void Update()
{
if (this._isStatic != this.isStatic)
{
if (this.isStatic)
{
this.meshKey = new FS_MeshKey(this.shadowMaterial, this.isStatic);
this.CalculateShadowGeometry();
FS_ShadowManager.Manager().RecalculateStaticGeometry(null, this.meshKey);
}
else
{
FS_MeshKey fS_MeshKey = this.meshKey;
this.meshKey = new FS_MeshKey(this.shadowMaterial, this.isStatic);
FS_ShadowManager.Manager().RecalculateStaticGeometry(this, fS_MeshKey);
}
this._isStatic = this.isStatic;
}
if (!this.isStatic)
{
this.CalculateShadowGeometry();
}
}
public void CalculateShadowGeometry()
{
Vector3 proj;
if (shadowMaterial == null)
{
return;
}
if (useLightSource && lightSource == null)
{
useLightSource = false;
Debug.LogWarning("No light source object given using light direction vector.");
}
if (useLightSource)
{
Vector3 ls = transform.position - lightSource.transform.position;
float mag = ls.magnitude;
if (mag != 0f)
{
lightDirection = ls / mag;
}
else
{
return; //object is on top of light source
}
}
else if (lightDirection != _lightDirection || lightDirection == Vector3.zero) //light direction is dirty
{
if (lightDirection == Vector3.zero)
{
Debug.LogWarning("Light Direction vector cannot be zero. assuming -y.");
lightDirection = -Vector3.up;
}
lightDirection.Normalize();
_lightDirection = lightDirection;
}
if (shadowCaster == null || girth != _girth)
{
if (shadowCaster == null)
{
shadowCaster = new GameObject("shadowSimple");
cornerGOs = new GameObject[4];
for (int i = 0; i < 4; i++)
{
GameObject c = cornerGOs[i] = new GameObject("c" + i);
c.transform.parent = shadowCaster.transform;
}
shadowCaster.transform.parent = transform;
shadowCaster.transform.localPosition = shadowpostion;
shadowCaster.transform.localRotation = Quaternion.identity;
shadowCaster.transform.localScale = Vector3.one;
}
if (Mathf.Abs(Vector3.Dot(transform.forward, lightDirection)) < .9f)
{
proj = transform.forward - Vector3.Dot(transform.forward, lightDirection) * lightDirection;
}
else
{
proj = transform.up - Vector3.Dot(transform.up, lightDirection) * lightDirection;
}
shadowCaster.transform.rotation = Quaternion.LookRotation(proj, -lightDirection);
cornerGOs[0].transform.position = shadowCaster.transform.position + girth * (shadowCaster.transform.forward - shadowCaster.transform.right);
cornerGOs[1].transform.position = shadowCaster.transform.position + girth * (shadowCaster.transform.forward + shadowCaster.transform.right);
cornerGOs[2].transform.position = shadowCaster.transform.position + girth * (-shadowCaster.transform.forward + shadowCaster.transform.right);
cornerGOs[3].transform.position = shadowCaster.transform.position + girth * (-shadowCaster.transform.forward - shadowCaster.transform.right);
_girth = girth;
}
Transform t = shadowCaster.transform;
r.origin = t.position;
r.direction = lightDirection;
if (maxProjectionDistance > 0f && Physics.Raycast(r, out rh, maxProjectionDistance, layerMask))
{
if (doVisibilityCulling && !isPerspectiveProjection)
{
Plane[] camPlanes = FS_ShadowManager.Manager().getCameraFustrumPlanes();
bounds.center = rh.point;
bounds.size = new Vector3(2f * girth, 2f * girth, 2f * girth);
if (!GeometryUtility.TestPlanesAABB(camPlanes, bounds))
{
return;
}
}
// Rotate Shadowcaster
//project forward or up vector onto a plane whos normal is lightDirection
if (Mathf.Abs(Vector3.Dot(transform.forward, lightDirection)) < .9f)
{
proj = transform.forward - Vector3.Dot(transform.forward, lightDirection) * lightDirection;
}
else
{
proj = transform.up - Vector3.Dot(transform.up, lightDirection) * lightDirection;
}
shadowCaster.transform.rotation = Quaternion.Lerp(shadowCaster.transform.rotation, Quaternion.LookRotation(proj, -lightDirection), .01f);
float alpha;
float dist = rh.distance - shadowHoverHeight;
alpha = 1.0f - dist / maxProjectionDistance;
if (alpha < 0f)
{
return;
}
alpha = Mathf.Clamp01(alpha);
_color.a = alpha;
_normal = rh.normal;
Vector3 hitPoint = rh.point - shadowHoverHeight * lightDirection;
shadowPlane.SetNormalAndPosition(_normal, hitPoint);
isGoodPlaneIntersect = true;
float rayDist = 0f;
float mag = 0f;
if (useLightSource && isPerspectiveProjection)
{
r.origin = lightSource.transform.position;
Vector3 lightSource2Corner = cornerGOs[0].transform.position - lightSource.transform.position;
mag = lightSource2Corner.magnitude;
r.direction = lightSource2Corner / mag;
isGoodPlaneIntersect = isGoodPlaneIntersect && shadowPlane.Raycast(r, out rayDist);
_corners[0] = r.origin + r.direction * rayDist;
lightSource2Corner = cornerGOs[1].transform.position - lightSource.transform.position;
r.direction = lightSource2Corner / mag;
isGoodPlaneIntersect = isGoodPlaneIntersect && shadowPlane.Raycast(r, out rayDist);
_corners[1] = r.origin + r.direction * rayDist;
lightSource2Corner = cornerGOs[2].transform.position - lightSource.transform.position;
r.direction = lightSource2Corner / mag;
isGoodPlaneIntersect = isGoodPlaneIntersect && shadowPlane.Raycast(r, out rayDist);
_corners[2] = r.origin + r.direction * rayDist;
lightSource2Corner = cornerGOs[3].transform.position - lightSource.transform.position;
r.direction = lightSource2Corner / mag;
isGoodPlaneIntersect = isGoodPlaneIntersect && shadowPlane.Raycast(r, out rayDist);
_corners[3] = r.origin + r.direction * rayDist;
if (doVisibilityCulling)
{
Plane[] camPlanes = FS_ShadowManager.Manager().getCameraFustrumPlanes();
bounds.center = rh.point;
bounds.size = Vector3.zero;
bounds.Encapsulate(_corners[0]);
bounds.Encapsulate(_corners[1]);
bounds.Encapsulate(_corners[2]);
bounds.Encapsulate(_corners[3]);
if (!GeometryUtility.TestPlanesAABB(camPlanes, bounds))
{
return;
}
}
}
else
{
//r.origin = cornerGOs[0].transform.position;
//isGoodPlaneIntersect = shadowPlane.Raycast(r, out rayDist);
//if (isGoodPlaneIntersect == false && rayDist == 0f)
// return;
//else
// isGoodPlaneIntersect = true;
//_corners[0] = r.origin + r.direction * rayDist;
//r.origin = cornerGOs[1].transform.position;
//isGoodPlaneIntersect = shadowPlane.Raycast(r, out rayDist);
//if (isGoodPlaneIntersect == false && rayDist == 0f)
// return;
//else
// isGoodPlaneIntersect = true;
//_corners[1] = r.origin + r.direction * rayDist;
//r.origin = cornerGOs[2].transform.position;
//isGoodPlaneIntersect = shadowPlane.Raycast(r, out rayDist);
//if (isGoodPlaneIntersect == false && rayDist == 0f)
// return;
//else
// isGoodPlaneIntersect = true;
//_corners[2] = r.origin + r.direction * rayDist;
//r.origin = cornerGOs[3].transform.position;
//isGoodPlaneIntersect = shadowPlane.Raycast(r, out rayDist);
//if (isGoodPlaneIntersect == false && rayDist == 0f)
// return;
//else
// isGoodPlaneIntersect = true;
//_corners[3] = r.origin + r.direction * rayDist;
r.origin = cornerGOs[0].transform.position;
_corners[0] = r.origin;
r.origin = cornerGOs[1].transform.position;
_corners[1] = r.origin;
r.origin = cornerGOs[2].transform.position;
_corners[2] = r.origin;
r.origin = cornerGOs[3].transform.position;
_corners[3] = r.origin;
}
if (isGoodPlaneIntersect)
{
if (meshKey == null || meshKey.mat != shadowMaterial || meshKey.isStatic != isStatic)
{
meshKey = new FS_MeshKey(shadowMaterial, isStatic);
}
FS_ShadowManager.Manager().registerGeometry(this, meshKey);
gizmoColor = Color.white;
}
else
{
gizmoColor = Color.magenta;
}
}
else
{
isGoodPlaneIntersect = false;
gizmoColor = Color.red;
}
}
private void CalculateShadowGeometry()
{
if (this.shadowMaterial == null)
{
return;
}
if (this.useLightSource && this.lightSource == null)
{
this.useLightSource = false;
Debug.LogWarning("No light source object given using light direction vector.");
}
if (this.useLightSource)
{
Vector3 a = base.transform.position - this.lightSource.transform.position;
float magnitude = a.magnitude;
if (magnitude == 0f)
{
return;
}
this.lightDirection = a / magnitude;
}
else if (this.lightDirection != this._lightDirection || this.lightDirection == Vector3.zero)
{
if (this.lightDirection == Vector3.zero)
{
Debug.LogWarning("Light Direction vector cannot be zero. assuming -y.");
this.lightDirection = -Vector3.up;
}
this.lightDirection.Normalize();
this._lightDirection = this.lightDirection;
}
if (this.shadowCaster == null || this.girth != this._girth)
{
if (this.shadowCaster == null)
{
this.shadowCaster = new GameObject("shadowSimple");
this.cornerGOs = new GameObject[4];
for (int i = 0; i < 4; i++)
{
GameObject gameObject = this.cornerGOs[i] = new GameObject("c" + i);
gameObject.transform.parent = this.shadowCaster.transform;
}
this.shadowCaster.transform.parent = base.transform;
this.shadowCaster.transform.localPosition = Vector3.zero;
this.shadowCaster.transform.localRotation = Quaternion.identity;
this.shadowCaster.transform.localScale = Vector3.one;
}
Vector3 forward;
if (Mathf.Abs(Vector3.Dot(base.transform.forward, this.lightDirection)) < 0.9f)
{
forward = base.transform.forward - Vector3.Dot(base.transform.forward, this.lightDirection) * this.lightDirection;
}
else
{
forward = base.transform.up - Vector3.Dot(base.transform.up, this.lightDirection) * this.lightDirection;
}
this.shadowCaster.transform.rotation = Quaternion.LookRotation(forward, -this.lightDirection);
this.cornerGOs[0].transform.position = this.shadowCaster.transform.position + this.girth * (this.shadowCaster.transform.forward - this.shadowCaster.transform.right);
this.cornerGOs[1].transform.position = this.shadowCaster.transform.position + this.girth * (this.shadowCaster.transform.forward + this.shadowCaster.transform.right);
this.cornerGOs[2].transform.position = this.shadowCaster.transform.position + this.girth * (-this.shadowCaster.transform.forward + this.shadowCaster.transform.right);
this.cornerGOs[3].transform.position = this.shadowCaster.transform.position + this.girth * (-this.shadowCaster.transform.forward - this.shadowCaster.transform.right);
this._girth = this.girth;
}
Transform transform = this.shadowCaster.transform;
this.r.origin = transform.position;
this.r.direction = this.lightDirection;
if (this.maxProjectionDistance > 0f && Physics.Raycast(this.r, out this.rh, this.maxProjectionDistance, this.layerMask))
{
if (this.doVisibilityCulling && !this.isPerspectiveProjection)
{
Plane[] cameraFustrumPlanes = FS_ShadowManager.Manager().getCameraFustrumPlanes();
this.bounds.center = this.rh.point;
this.bounds.size = new Vector3(2f * this.girth, 2f * this.girth, 2f * this.girth);
if (!GeometryUtility.TestPlanesAABB(cameraFustrumPlanes, this.bounds))
{
return;
}
}
Vector3 forward;
if (Mathf.Abs(Vector3.Dot(base.transform.forward, this.lightDirection)) < 0.9f)
{
forward = base.transform.forward - Vector3.Dot(base.transform.forward, this.lightDirection) * this.lightDirection;
}
else
{
forward = base.transform.up - Vector3.Dot(base.transform.up, this.lightDirection) * this.lightDirection;
}
this.shadowCaster.transform.rotation = Quaternion.Lerp(this.shadowCaster.transform.rotation, Quaternion.LookRotation(forward, -this.lightDirection), 0.01f);
float num = this.rh.distance - this.shadowHoverHeight;
float num2 = 1f - num / this.maxProjectionDistance;
if (num2 < 0f)
{
return;
}
num2 = Mathf.Clamp01(num2);
this._color.a = num2;
this._normal = this.rh.normal;
Vector3 inPoint = this.rh.point - this.shadowHoverHeight * this.lightDirection;
this.shadowPlane.SetNormalAndPosition(this._normal, inPoint);
this.isGoodPlaneIntersect = true;
float num3 = 0f;
if (this.useLightSource && this.isPerspectiveProjection)
{
this.r.origin = this.lightSource.transform.position;
Vector3 a2 = this.cornerGOs[0].transform.position - this.lightSource.transform.position;
float magnitude2 = a2.magnitude;
this.r.direction = a2 / magnitude2;
this.isGoodPlaneIntersect = (this.isGoodPlaneIntersect && this.shadowPlane.Raycast(this.r, out num3));
this._corners[0] = this.r.origin + this.r.direction * num3;
a2 = this.cornerGOs[1].transform.position - this.lightSource.transform.position;
this.r.direction = a2 / magnitude2;
this.isGoodPlaneIntersect = (this.isGoodPlaneIntersect && this.shadowPlane.Raycast(this.r, out num3));
this._corners[1] = this.r.origin + this.r.direction * num3;
a2 = this.cornerGOs[2].transform.position - this.lightSource.transform.position;
this.r.direction = a2 / magnitude2;
this.isGoodPlaneIntersect = (this.isGoodPlaneIntersect && this.shadowPlane.Raycast(this.r, out num3));
this._corners[2] = this.r.origin + this.r.direction * num3;
a2 = this.cornerGOs[3].transform.position - this.lightSource.transform.position;
this.r.direction = a2 / magnitude2;
this.isGoodPlaneIntersect = (this.isGoodPlaneIntersect && this.shadowPlane.Raycast(this.r, out num3));
this._corners[3] = this.r.origin + this.r.direction * num3;
if (this.doVisibilityCulling)
{
Plane[] cameraFustrumPlanes2 = FS_ShadowManager.Manager().getCameraFustrumPlanes();
this.bounds.center = this.rh.point;
this.bounds.size = Vector3.zero;
this.bounds.Encapsulate(this._corners[0]);
this.bounds.Encapsulate(this._corners[1]);
this.bounds.Encapsulate(this._corners[2]);
this.bounds.Encapsulate(this._corners[3]);
if (!GeometryUtility.TestPlanesAABB(cameraFustrumPlanes2, this.bounds))
{
return;
}
}
}
else
{
this.r.origin = this.cornerGOs[0].transform.position;
this.isGoodPlaneIntersect = this.shadowPlane.Raycast(this.r, out num3);
if (!this.isGoodPlaneIntersect && num3 == 0f)
{
return;
}
this.isGoodPlaneIntersect = true;
this._corners[0] = this.r.origin + this.r.direction * num3;
this.r.origin = this.cornerGOs[1].transform.position;
this.isGoodPlaneIntersect = this.shadowPlane.Raycast(this.r, out num3);
if (!this.isGoodPlaneIntersect && num3 == 0f)
{
return;
}
this.isGoodPlaneIntersect = true;
this._corners[1] = this.r.origin + this.r.direction * num3;
this.r.origin = this.cornerGOs[2].transform.position;
this.isGoodPlaneIntersect = this.shadowPlane.Raycast(this.r, out num3);
if (!this.isGoodPlaneIntersect && num3 == 0f)
{
return;
}
this.isGoodPlaneIntersect = true;
this._corners[2] = this.r.origin + this.r.direction * num3;
this.r.origin = this.cornerGOs[3].transform.position;
this.isGoodPlaneIntersect = this.shadowPlane.Raycast(this.r, out num3);
if (!this.isGoodPlaneIntersect && num3 == 0f)
{
return;
}
this.isGoodPlaneIntersect = true;
this._corners[3] = this.r.origin + this.r.direction * num3;
}
if (this.isGoodPlaneIntersect)
{
if (this.meshKey == null || this.meshKey.mat != this.shadowMaterial || this.meshKey.isStatic != this.isStatic)
{
this.meshKey = new FS_MeshKey(this.shadowMaterial, this.isStatic);
}
FS_ShadowManager.Manager().registerGeometry(this, this.meshKey);
this.gizmoColor = Color.white;
}
else
{
this.gizmoColor = Color.magenta;
}
}
else
{
this.isGoodPlaneIntersect = false;
this.gizmoColor = Color.red;
}
}
