public GlTriangle(Color color, GlNormalizedVertex v0, GlNormalizedVertex v1, GlNormalizedVertex v2)
{
Color = color;
V0 = v0;
V1 = v1;
V2 = v2;
}
protected void addShadow()
{
Profiler.Instance.LogEvent("mesh: init");
var edges = new Dictionary <int, GlTriangleEdge>();
foreach (var triangle in Triangles)
{
GlTriangleEdge edge;
edge = new GlTriangleEdge(triangle.V0, triangle.V1);
edges[edge.Hash] = edge;
edge = new GlTriangleEdge(triangle.V1, triangle.V2);
edges[edge.Hash] = edge;
edge = new GlTriangleEdge(triangle.V2, triangle.V0);
edges[edge.Hash] = edge;
}
Profiler.Instance.LogEvent("mesh: add edges");
var color = Color.Black;
foreach (var edge in edges.Values)
{
GlNormalizedVertex v1 = edge.V1, v2 = edge.V2;
if (edges.TryGetValue(new GlTriangleEdge(v2, v1).Hash, out GlTriangleEdge neighbor))
{
GlNormalizedVertex v3 = neighbor.V1, v4 = neighbor.V2;
if (!v3.Normal.Equals(v2.Normal))
{
ShadowTriangles.Add(new GlTriangle(color, v4, v3, v2));
ShadowTriangles.Add(new GlTriangle(color, v4, v2, v1));
}
}
}
Profiler.Instance.LogEvent("mesh: add shadow");
}
public GlTriangle(Color color, GlIndexedVertex v0, GlIndexedVertex v1, GlIndexedVertex v2)
{
Color = color;
var normal = Point3D.VectorMult(v1.Position - v0.Position, v2.Position - v0.Position).Normal;
V0 = new GlNormalizedVertex(v0, normal);
V1 = new GlNormalizedVertex(v1, normal);
V2 = new GlNormalizedVertex(v2, normal);
}