/// converts a cubemap texture to a lat long map
public TextureArray2D ConvertToLatLong(TextureArray2D cube, int resolution)
{
Debug.Assert(cube.NumLayers == 6);
var dst = new TextureArray2D(LayerMipmapCount.One, new Size3(resolution, Math.Max(resolution / 2, 1)), Format.R32G32B32A32_Float, false);
var dev = Device.Get();
quad.Bind(false);
dev.Pixel.Set(toLatLong.Pixel);
var dim = dst.Size;
dev.Pixel.SetShaderResource(0, cube.GetCubeView(0));
dev.Pixel.SetSampler(0, sampler);
dev.OutputMerger.SetRenderTargets(dst.GetRtView(LayerMipmapSlice.Mip0));
dev.SetViewScissors(dim.Width, dim.Height);
dev.DrawQuad();
dev.Pixel.SetShaderResource(0, null);
dev.Pixel.SetSampler(0, null);
dev.OutputMerger.SetRenderTargets((RenderTargetView)null);
quad.Unbind();
return(dst);
}