private float?ProcessTriangle(int triangleIndex)
{
System.Diagnostics.Debug.Assert((int)m_flags != 0);
MyTriangle_Vertices triangle;
MyTriangleVertexIndices triangleIndices = m_model.Triangles[triangleIndex];
m_model.GetVertex(triangleIndices.I0, triangleIndices.I2, triangleIndices.I1, out triangle.Vertex0, out triangle.Vertex1, out triangle.Vertex2);
Vector3 calculatedTriangleNormal = MyUtils.GetNormalVectorFromTriangle(ref triangle);
//We dont want backside intersections
if (((int)(m_flags & IntersectionFlags.FLIPPED_TRIANGLES) == 0) &&
Vector3.Dot(m_line.Direction, calculatedTriangleNormal) > 0)
{
return(null);
}
Line lineF = (Line)m_line;
float?distance = MyUtils.GetLineTriangleIntersection(ref lineF, ref triangle);
// If intersection occured and if distance to intersection is closer to origin than any previous intersection
if ((distance != null) && ((m_result == null) || (distance.Value < m_result.Value.Distance)))
{
// We need to remember original triangleVertexes coordinates (not transformed by world matrix)
MyTriangle_BoneIndicesWeigths?boneWeights = m_model.GetBoneIndicesWeights(triangleIndex);
m_result = new MyIntersectionResultLineTriangle(ref triangle, ref boneWeights, ref calculatedTriangleNormal, distance.Value);
return(distance.Value);
}
return(null);
}
private float?ProcessTriangle(int triangleIndex)
{
System.Diagnostics.Debug.Assert((int)m_flags != 0);
MyTriangle_Vertices triangle;
MyTriangleVertexIndices triangleIndices = m_model.Triangles[triangleIndex];
m_model.GetVertex(triangleIndices.I0, triangleIndices.I2, triangleIndices.I1, out triangle.Vertex0, out triangle.Vertex1, out triangle.Vertex2);
Vector3 calculatedTriangleNormal = MyUtils.GetNormalVectorFromTriangle(ref triangle);
//We dont want backside intersections
if (((int)(m_flags & IntersectionFlags.FLIPPED_TRIANGLES) == 0) &&
Vector3.Dot(m_line.Direction, calculatedTriangleNormal) > 0)
{
return(null);
}
Line lineF = (Line)m_line;
float?distance = MyUtils.GetLineTriangleIntersection(ref lineF, ref triangle);
if (distance.HasValue)
{
MyTriangle_BoneIndicesWeigths?boneWeights = m_model.GetBoneIndicesWeights(triangleIndex);
var result = new MyIntersectionResultLineTriangle(ref triangle, ref boneWeights, ref calculatedTriangleNormal, distance.Value);
m_result.Add(result);
}
return(distance);
}