Multiple render targets exception

Ravendarke · June 21, 2015, 10:32pm

Wrong behavior - error, illogical limitation:
While opening more than 4 render targets at same time I am getting exception:

Destination array was not long enough. Check destIndex and length, and the array’s lower bounds.

One of advantage of shader model 4.0+ is ability to render into more than 4 outputs at same time. This is killing possibilities quite a lot and in my case it force to use twice as many drawcalls than it would be needed otherwise.

Any ETA on fix or is there way how I could fix it myself? (not sure how many underlying issues there can be.)

Edit:
About fixing it myself for now:

github.com

MonoGame/MonoGame/blob/1756c713b4aede3db5568f69012daf68be2d8c6a/MonoGame.Framework/Graphics/GraphicsDevice.cs

// MonoGame - Copyright (C) The MonoGame Team
// This file is subject to the terms and conditions defined in
// file 'LICENSE.txt', which is part of this source code package.

using System;
using System.Collections.Generic;
using System.Diagnostics;


namespace Microsoft.Xna.Framework.Graphics
{
    public partial class GraphicsDevice : IDisposable
    {
        private Viewport _viewport;
        private GraphicsProfile _graphicsProfile;

        private bool _isDisposed;

        private BlendState _blendState;
        private BlendState _actualBlendState;

This file has been truncated. show original

Line 53, start from there.

Then fix render target clearing…

Am I missing something?