/// <summary>
/// Gets the pixel at the specified position.
/// </summary>
/// <param name="x">The x position.</param>
/// <param name="y">The y position.</param>
/// <param name="z">The z position.</param>
/// <param name="wrapMode">The wrap mode.</param>
/// <returns>The pixel color.</returns>
public Vector4 GetPixel(int x, int y, int z, TextureAddressMode wrapMode)
{
switch (wrapMode)
{
case TextureAddressMode.Clamp:
x = TextureHelper.WrapClamp(x, _width);
y = TextureHelper.WrapClamp(y, _height);
z = TextureHelper.WrapClamp(z, _depth);
break;
case TextureAddressMode.Repeat:
x = TextureHelper.WrapRepeat(x, _width);
y = TextureHelper.WrapRepeat(y, _height);
z = TextureHelper.WrapRepeat(z, _depth);
break;
case TextureAddressMode.Mirror:
x = TextureHelper.WrapMirror(x, _width);
y = TextureHelper.WrapMirror(y, _height);
z = TextureHelper.WrapMirror(z, _depth);
break;
}
unsafe
{
float *ptr = (float *)_intPtrs[z].ToPointer() + (y * _width + x) * 4;
return(new Vector4(*ptr++, *ptr++, *ptr++, *ptr));
}
}
/// <summary>
/// Gets the pixel at the specified position.
/// </summary>
/// <param name="x">The x position.</param>
/// <param name="y">The y position.</param>
/// <param name="wrapMode">The wrap mode.</param>
/// <returns>The pixel color.</returns>
public Vector4 GetPixel(int x, int y, TextureAddressMode wrapMode)
{
switch (wrapMode)
{
case TextureAddressMode.Clamp:
x = TextureHelper.WrapClamp(x, _width);
y = TextureHelper.WrapClamp(y, _height);
break;
case TextureAddressMode.Repeat:
x = TextureHelper.WrapRepeat(x, _width);
y = TextureHelper.WrapRepeat(y, _height);
break;
case TextureAddressMode.Mirror:
x = TextureHelper.WrapMirror(x, _width);
y = TextureHelper.WrapMirror(y, _height);
break;
}
return(GetPixel(y * _width + x));
}