private static Int32 intersect3D_RayTriangle(Ray R, WMTriangle T, out Vector3 I)
{
I = Vector3.zero;
Vector3 vector = T.point1 - T.point0;
Vector3 vector2 = T.point2 - T.point0;
Vector3 lhs = Vector3.Cross(vector, vector2);
if (lhs == Vector3.zero)
{
return(-1);
}
Vector3 direction = R.direction;
Vector3 rhs = R.origin - T.point0;
Single num = -Vector3.Dot(lhs, rhs);
Single num2 = Vector3.Dot(lhs, direction);
if (Mathf.Abs(num2) < 1E-08f)
{
if (num == 0f)
{
return(2);
}
return(0);
}
else
{
Single num3 = num / num2;
if ((Double)num3 < 0.0)
{
return(0);
}
I = R.origin + num3 * direction;
Single num4 = Vector3.Dot(vector, vector);
Single num5 = Vector3.Dot(vector, vector2);
Single num6 = Vector3.Dot(vector2, vector2);
Vector3 lhs2 = I - T.point0;
Single num7 = Vector3.Dot(lhs2, vector);
Single num8 = Vector3.Dot(lhs2, vector2);
Single num9 = num5 * num5 - num4 * num6;
Single num10 = (num5 * num8 - num6 * num7) / num9;
if ((Double)num10 < 0.0 || (Double)num10 > 1.0)
{
return(0);
}
Single num11 = (num5 * num7 - num4 * num8) / num9;
if ((Double)num11 < 0.0 || (Double)(num10 + num11) > 1.0)
{
return(0);
}
return(1);
}
}
public static Boolean Raycast(Ray ray, WMMesh mesh, out WMRaycastHit hit)
{
Int32[] triangles = mesh.Triangles;
Vector4[] tangents = mesh.Tangents;
Vector3[] vertices = mesh.Vertices;
Transform transform = mesh.Transform;
hit = default(WMRaycastHit);
for (Int32 i = 0; i < (Int32)triangles.Length / 3; i++)
{
Int32 num = (Int32)tangents[triangles[i * 3]].x;
if (num != 4078 || WMPhysics.IgnoreExceptions)
{
if (num != 4088 || WMPhysics.IgnoreExceptions)
{
if (num != 2040 || WMPhysics.IgnoreExceptions)
{
Single num2 = Vector3.Dot(Vector3.up, mesh.TriangleNormals[i]);
if (num2 <= 0.1f)
{
if (!WMPhysics.IgnoreExceptions)
{
goto IL_15E;
}
}
Vector3 vector = vertices[triangles[i * 3]];
Vector3 vector2 = vertices[triangles[i * 3 + 1]];
Vector3 vector3 = vertices[triangles[i * 3 + 2]];
vector = transform.TransformPoint(vector);
vector2 = transform.TransformPoint(vector2);
vector3 = transform.TransformPoint(vector3);
WMTriangle t = new WMTriangle(vector, vector2, vector3);
if (WMPhysics.intersect3D_RayTriangle(ray, t, out hit.point) == 1)
{
hit.triangleIndex = i;
return(true);
}
}
}
}
IL_15E :;
}
return(false);
}
public static Boolean RaycastOnSpecifiedTriangle(Ray ray, WMMesh mesh, Int32 triangleIndex, out WMRaycastHit hit)
{
Vector3[] vertices = mesh.Vertices;
Int32[] triangles = mesh.Triangles;
Transform transform = mesh.Transform;
hit = default(WMRaycastHit);
Vector3 vector = vertices[triangles[triangleIndex * 3]];
Vector3 vector2 = vertices[triangles[triangleIndex * 3 + 1]];
Vector3 vector3 = vertices[triangles[triangleIndex * 3 + 2]];
vector = transform.TransformPoint(vector);
vector2 = transform.TransformPoint(vector2);
vector3 = transform.TransformPoint(vector3);
WMTriangle t = new WMTriangle(vector, vector2, vector3);
if (WMPhysics.intersect3D_RayTriangle(ray, t, out hit.point) != 0)
{
hit.triangleIndex = triangleIndex;
return(true);
}
return(false);
}
