/// <summary>
/// Calculate texture coordinates with face texturemapping values
/// </summary>
/// <param name="face"></param>
/// <param name="minimiseShiftValues"></param>
public void CalculateTextureCoordinatesForFace(SolidFace face, bool minimiseShiftValues = false)
{
if (face.TextureMapping.TextureLocked)
{
return;
}
TextureMapping mapping = face.TextureMapping;
foreach (SolidIndex vertexIndex in face.Indices)
{
Vector3 position = VertexPositions[vertexIndex.Index];
double u = (Vector3.Dot(position, mapping.UAxis) / mapping.UScale - mapping.UShift) /
face.Texture.Width;
double v = (Vector3.Dot(position, mapping.VAxis) / mapping.VScale + mapping.VShift) /
face.Texture.Height;
vertexIndex.DiffuseUv = new Vector2((float)u, (float)v);
}
if (minimiseShiftValues)
{
MinimiseTextureShiftValuesForFace(face);
}
}
public SolidFace()
{
Indices = new List <SolidIndex>();
TextureMapping = new TextureMapping();
TextureMapping.UScale = TextureMapping.VScale = (float)TextureMapping.DefaultScaleValue;
TextureMapping.UShift = TextureMapping.VShift = (float)TextureMapping.DefaultShiftValue;
TextureMapping.Rotation = (float)TextureMapping.DefaultRotationValue;
TextureMapping.TextureLocked = TextureMapping.DefaultTextureLockValue;
}