public static void PlaceTextureOnFace(Face face, ImageBuffer textureToUse)
{
FaceTextureData faceData = FaceTextureData.Get(face);
faceData.Textures.Add(textureToUse);
int count = 0;
foreach (FaceEdge faceEdge in face.FaceEdges())
{
FaceEdgeTextureUvData edgeUV = FaceEdgeTextureUvData.Get(faceEdge);
switch (count++)
{
case 0:
edgeUV.TextureUV.Add(new Vector2(0, 0));
break;
case 1:
edgeUV.TextureUV.Add(new Vector2(1, 0));
break;
case 2:
edgeUV.TextureUV.Add(new Vector2(1, 1));
break;
case 3:
edgeUV.TextureUV.Add(new Vector2(0, 1));
break;
}
}
}
public ImageBuffer GetTexture(int index)
{
FaceTextureData faceData = FaceTextureData.Get(this);
if (faceData != null && index < faceData.Textures.Count)
{
return(faceData.Textures[index]);
}
return(null);
}
static public FaceTextureData Get(Face faceToGetTextureDataFor)
{
FaceTextureData plugin;
facesWithTextureData.TryGetValue(faceToGetTextureDataFor, out plugin);
if (plugin == null)
{
FaceTextureData newPlugin = new FaceTextureData();
facesWithTextureData.Add(faceToGetTextureDataFor, newPlugin);
return newPlugin;
}
return plugin;
}
static public FaceTextureData Get(Face faceToGetTextureDataFor)
{
FaceTextureData plugin;
facesWithTextureData.TryGetValue(faceToGetTextureDataFor, out plugin);
if (plugin == null)
{
FaceTextureData newPlugin = new FaceTextureData();
facesWithTextureData.Add(faceToGetTextureDataFor, newPlugin);
return(newPlugin);
}
return(plugin);
}
public static void PlaceTextureOnFace(this Mesh mesh, int face, ImageBuffer textureToUse, Matrix4X4 textureCoordinateMapping)
{
var faceTextures = new Dictionary <int, FaceTextureData>(mesh.FaceTextures);
var uvs = new Vector2Float[3];
int uvIndex = 0;
foreach (int vertexIndex in new int[] { mesh.Faces[face].v0, mesh.Faces[face].v1, mesh.Faces[face].v2 })
{
var edgeStartPosition = mesh.Vertices[vertexIndex];
var textureUv = edgeStartPosition.Transform(textureCoordinateMapping);
uvs[uvIndex++] = new Vector2Float(textureUv);
}
faceTextures[face] = new FaceTextureData(textureToUse, uvs[0], uvs[1], uvs[2]);
mesh.FaceTextures = faceTextures;
mesh.MarkAsChanged();
}