public RayTracer.Structs.Color GetColorFromTexCoordinate(Vector2 texCoord)
{
lock (this)
{
float u = texCoord.X * (Width - 1);
float v = (1 - texCoord.Y) * (Height - 1);
int u0 = (int)Math.Floor(u);
int v0 = (int)Math.Floor(v);
int u1 = (int)Math.Ceiling(u);
int v1 = (int)Math.Ceiling(v);
u0 = Math.Min(Math.Max(u0, 0), Width - 1);
u1 = Math.Min(Math.Max(u1, 0), Width - 1);
v0 = Math.Min(Math.Max(v0, 0), Height - 1);
v1 = Math.Min(Math.Max(v1, 0), Height - 1);
float wu = (u - u0) / (u1 - u0);
float wv = (v - v0) / (v1 - v0);
int r1 = (int)(TextureImage.GetPixel(u0, v0).R *(1 - wu)) + (int)(TextureImage.GetPixel(u1, v0).R *wu);
int r2 = (int)(TextureImage.GetPixel(u0, v1).R *(1 - wu)) + (int)(TextureImage.GetPixel(u1, v1).R *wu);
int g1 = (int)(TextureImage.GetPixel(u0, v0).G *(1 - wu)) + (int)(TextureImage.GetPixel(u1, v0).G *wu);
int g2 = (int)(TextureImage.GetPixel(u0, v1).G *(1 - wu)) + (int)(TextureImage.GetPixel(u1, v1).G *wu);
int b1 = (int)(TextureImage.GetPixel(u0, v0).B *(1 - wu)) + (int)(TextureImage.GetPixel(u1, v0).B *wu);
int b2 = (int)(TextureImage.GetPixel(u0, v1).B *(1 - wu)) + (int)(TextureImage.GetPixel(u1, v1).B *wu);
int finalR = (int)(r1 * (1 - wv) + r2 * wv);
int finalG = (int)(g1 * (1 - wv) + g2 * wv);
int finalB = (int)(b1 * (1 - wv) + b2 * wv);
return(new Structs.Color(finalR / 255f, finalG / 255f, finalB / 255f));
}
}