/// <summary>
/// Prepares a render target to hold the result of this pass.
/// </summary>
public override RenderTarget2D PrepareRenderTarget(GraphicsDevice graphics, Texture2D input, SurfaceFormat?preferredFormat)
{
int w, h;
if (renderTargetSize.HasValue)
{
w = (int)renderTargetSize.Value.X;
h = (int)renderTargetSize.Value.Y;
}
else
{
if (input != null)
{
w = input.Width;
h = input.Height;
}
else
{
w = graphics.Viewport.Width;
h = graphics.Viewport.Height;
}
}
var format = surfaceFormat ?? preferredFormat ?? (input != null ? input.Format : graphics.PresentationParameters.BackBufferFormat);
return(RenderTargetPool.GetRenderTarget(graphics
, (int)(w * renderTargetScale)
, (int)(h * renderTargetScale)
, format
, DepthFormat.None));
}
