private unsafe void SetFaceData(RenderContext renderContext, CubeMapDirection direction, Image <Rgba32> image)
{
fixed(void *data = &MemoryMarshal.GetReference(ImageHelper.GetPixelSpan(image)))
{
var previousTexture = renderContext.GetCurrentTexture(0);
renderContext.BindTextureCubeMap(0, this);
GL.TexImage2D(GetTextureTarget(direction),
0,
PixelInternalFormat.Rgba,
image.Width,
image.Height,
0,
PixelFormat.Rgba,
PixelType.UnsignedByte,
new IntPtr(data));
if (previousTexture != null)
{
previousTexture.Bind(0, renderContext);
}
else
{
renderContext.UnbindTextureCubeMap(0);
}
}
}
private TextureTarget GetTextureTarget(CubeMapDirection dir)
{
switch (dir)
{
case CubeMapDirection.Front:
return(TextureTarget.TextureCubeMapPositiveX);
case CubeMapDirection.Back:
return(TextureTarget.TextureCubeMapNegativeX);
case CubeMapDirection.Up:
return(TextureTarget.TextureCubeMapPositiveY);
case CubeMapDirection.Down:
return(TextureTarget.TextureCubeMapNegativeY);
case CubeMapDirection.Right:
return(TextureTarget.TextureCubeMapPositiveZ);
case CubeMapDirection.Left:
return(TextureTarget.TextureCubeMapNegativeZ);
default:
throw new ArgumentOutOfRangeException(nameof(dir), dir, null);
}
}
