void InitPVSMeshes()
{
m_PVSItemIDS.Clear();
m_GlobalNodeId = 0;
m_BoundsArray = null;
if (m_PVSMeshRoot != null)
{
MeshRenderer[] mss = m_PVSMeshRoot.GetComponentsInChildren <MeshRenderer> (true);
if (mss != null)
{
System.Array.Sort(mss, (MeshRenderer m1, MeshRenderer m2) => {
var p1 = m1.transform.position;
var p2 = m2.transform.position;
float vv = p1.z - p2.z;
if (Mathf.Abs(vv) > float.Epsilon)
{
if (p1.z < p2.z)
{
return(-1);
}
return(1);
}
vv = p1.x - p2.x;
if (Mathf.Abs(vv) > float.Epsilon)
{
if (p1.x < p2.x)
{
return(-1);
}
return(1);
}
return(0);
}
);
m_BoundsArray = new PVSBounds[mss.Length];
for (int i = 0; i < mss.Length; ++i)
{
var ms = mss [i];
PVSBounds bounds = new PVSBounds();
var b = ms.bounds;
bounds.min = ms.bounds.min;
bounds.max = ms.bounds.max;
bounds.forward = ms.transform.forward;
bounds.up = ms.transform.up;
bounds.id = GeneratorNodeId();
m_BoundsArray [i] = bounds;
m_PVSItemIDS.AddIDs(bounds.id, ms.transform);
}
}
}
m_PVSItemIDS.m_BakerRoot = m_PVSMeshRoot;
}
void DrawSelectMeshObjLineCheck()
{
if (m_TargetCamera == null)
{
return;
}
if (m_BakerMode == PVSSceneBakerMode.CameraRTComputeMode || m_BakerMode == PVSSceneBakerMode.CameraRTCpuMode)
{
return;
}
var selTrans = Selection.activeTransform;
if (selTrans != null)
{
var ms = selTrans.GetComponent <MeshRenderer>();
if (ms != null)
{
var b = ms.bounds;
Handles.color = Color.black;
Handles.DrawLine(m_TargetCamInfo.position, b.center);
if (GUILayout.Button("检测是否选中碰撞"))
{
Vector3 dir = b.center - m_TargetCamInfo.position;
dir = dir.normalized;
Ray ray = new Ray(m_TargetCamInfo.position, dir);
PVSBounds bound = new PVSBounds();
bound.min = b.min;
bound.max = b.max;
bound.up = ms.transform.up;
bound.forward = ms.transform.forward;
float tutDistance = 0f;
while (true)
{
if (PVSRayTrack.sdPVSCell(ref ray, bound, ref tutDistance))
{
Debug.Log("有碰撞");
break;
}
if (tutDistance > m_TargetCamInfo.far)
{
Debug.Log("无碰撞");
break;
}
}
}
}
}
}
internal static bool sdPVSCell(ref Ray ray, PVSBounds bounds, ref float tutDistance)
{
float distance = sdPVSCell(ray.origin, bounds);
if (distance <= Vector3.kEpsilon)
{
return(true);
}
tutDistance += distance;
ray.origin += distance * ray.direction;
return(false);
}
internal static float sdPVSCell(Vector3 pt, PVSBounds bounds)
{
Matrix4x4 mat = Matrix4x4.identity;
Vector3 center = bounds.center;
Vector3 size = bounds.size;
Vector3 up = bounds.up;
Vector3 zz = bounds.forward;
Vector3 right = Vector3.Cross(up, zz);
mat.m00 = right.x; mat.m01 = right.y; mat.m02 = right.z;
mat.m10 = up.x; mat.m11 = up.y; mat.m12 = up.z;
mat.m20 = zz.x; mat.m21 = zz.y; mat.m22 = zz.z;
pt -= center;
pt = mat.MultiplyPoint(pt);
float ret = sdBox(pt, size);
return(ret);
}
