void OnDrawSceneHandles(SceneView _sceneView)
{
Handles.color = Color.white.SetAlpha(.5f);
Handles.DrawWireCube(m_ModifingMesh.bounds.center, m_ModifingMesh.bounds.size * 1.2f);
if (!m_SelectingPolygon)
{
return;
}
GMeshPolygon _mainPolygon = m_Polygons[m_SelectedPolygon];
foreach (var subPolygon in m_SubPolygons)
{
GDirectedTriangle directedTriangle = m_Polygons[subPolygon].GetDirectedTriangle(m_Verticies);
if (Vector3.Dot(directedTriangle.normal, _sceneView.camera.transform.forward) > 0)
{
continue;
}
Handles.color = Color.yellow.SetAlpha(.1f);
Handles.DrawAAConvexPolygon(directedTriangle.triangle.verticies);
Handles.color = Color.yellow;
Handles.DrawLines(directedTriangle.triangle.GetDrawLinesVerticies());
}
GTriangle mainTriangle = _mainPolygon.GetTriangle(m_Verticies);
Handles.color = Color.green.SetAlpha(.3f);
Handles.DrawAAConvexPolygon(mainTriangle.verticies);
Handles.color = Color.green;
Handles.DrawLines(mainTriangle.GetDrawLinesVerticies());
if (!m_EditingVectors)
{
return;
}
Handles.color = Color.green;
foreach (var indice in _mainPolygon.indices)
{
Handles_Extend.DrawArrow(m_Verticies[indice], m_VertexDatas[indice], .1f * m_GUISize, .01f * m_GUISize);
if (m_SelectedVertexIndex == indice)
{
continue;
}
Handles_Extend.DrawWireSphere(m_Verticies[indice], m_VertexDatas[indice], C_VertexSphereRadius * m_GUISize);
}
Handles.color = Color.yellow;
foreach (var subPolygon in m_SubPolygons)
{
foreach (var indice in m_Polygons[subPolygon].indices)
{
Handles.DrawLine(m_Verticies[indice], m_Verticies[indice] + m_VertexDatas[indice] * .03f * m_GUISize);
}
}
}
public static bool RayDirectedTriangleIntersect(GDirectedTriangle _triangle, GRay _ray, bool _rayDirectionCheck, bool _triangleDirectionCheck, out float distance)
{
if (!RayTriangleCalculate(_triangle[0], _triangle[1], _triangle[2], _ray.origin, _ray.direction, out distance, out float u, out float v))
{
return(false);
}
bool intersect = true;
intersect &= !_rayDirectionCheck || distance > 0;
intersect &= !_triangleDirectionCheck || Vector3.Dot(_triangle.normal, _ray.direction) < 0;
return(intersect);
}
static Vector3[] RenegerateNormals(int[] _indices, Vector3[] _verticies)
{
Vector3[] normals = new Vector3[_verticies.Length];
GMeshPolygon[] polygons = URender.GetPolygons(_indices);
foreach (var polygon in polygons)
{
GDirectedTriangle triangle = polygon.GetDirectedTriangle(_verticies);
Vector3 normal = triangle.normal;
foreach (var indice in polygon.indices)
{
normals[indice] += normal;
}
}
normals = normals.ToArray(normal => normal.normalized);
return(normals);
}
protected static int RayDirectedTriangleIntersect(GMeshPolygon[] _polygons, Vector3[] _verticies, GRay _ray, out Vector3 hitPoint, out GDirectedTriangle hitTriangle)
{
collisionPoint = Vector3.zero;
float minDistance = float.MaxValue;
int index = _polygons.LastIndex(p =>
{
GDirectedTriangle triangle = p.GetDirectedTriangle(_verticies);
bool intersect = UGeometry.RayDirectedTriangleIntersect(triangle, _ray, true, true, out float distance);
if (intersect && minDistance > distance)
{
collisionTriangle = triangle;
collisionPoint = _ray.GetPoint(distance);
minDistance = distance;
return(true);
}
return(false);
});
hitPoint = collisionPoint;
hitTriangle = collisionTriangle;
return(index);
}
public static bool RayDirectedTriangleIntersect(GDirectedTriangle _triangle, GRay _ray, bool _rayDirectionCheck, bool _triangleDirectionCheck) => RayDirectedTriangleIntersect(_triangle, _ray, _rayDirectionCheck, _triangleDirectionCheck, out float distance);
