MonoGame/MonoGame · error · InvalidOperationException

This rasterizer state is already bound to a different graphi

Error message

This rasterizer state is already bound to a different graphics device.

What it means

Thrown by RasterizerState.BindToGraphicsDevice when a user-created RasterizerState already bound to one GraphicsDevice is bound to a different one. Native rasterizer state resources are device-specific, so MonoGame enforces exclusive one-device ownership.

Source

Thrown at MonoGame.Framework/Graphics/States/RasterizerState.cs:150

        /// <summary>
        /// Gets or Sets a value that indicates whether depth clipping is enabled.
        /// </summary>
        public bool DepthClipEnable
        {
            get { return _depthClipEnable; }
            set
            {
                ThrowIfBound();
                _depthClipEnable = value;
            }
        }

        internal void BindToGraphicsDevice(GraphicsDevice device)
        {
            if (_defaultStateObject)
                throw new InvalidOperationException("You cannot bind a default state object.");
            if (GraphicsDevice != null && GraphicsDevice != device)
                throw new InvalidOperationException("This rasterizer state is already bound to a different graphics device.");
            GraphicsDevice = device;
        }

        internal void ThrowIfBound()
        {
            if (_defaultStateObject)
                throw new InvalidOperationException("You cannot modify a default rasterizer state object.");
            if (GraphicsDevice != null)
                throw new InvalidOperationException("You cannot modify the rasterizer state after it has been bound to the graphics device!");
        }

        /// <summary>
        /// A built-in state object with settings for culling primitives with clockwise winding order.
        /// </summary>
        /// <remarks>
        /// This build-in state object has the following settings
        ///
        /// <code>

View on GitHub (pinned to 1d71bbd0ff)

Solutions

1. Create a separate RasterizerState instance for each GraphicsDevice.
2. After device recreation, instantiate new RasterizerState objects rather than reusing old ones.
3. Audit multi-device code for shared render-state references.

Example fix

// before
var rs = new RasterizerState { CullMode = CullMode.None };
deviceA.RasterizerState = rs;
deviceB.RasterizerState = rs; // throws

// after
var rsA = new RasterizerState { CullMode = CullMode.None };
var rsB = new RasterizerState { CullMode = CullMode.None };
deviceA.RasterizerState = rsA;
deviceB.RasterizerState = rsB;

// Before binding, check the state isn't on a different device
if (rsState.GraphicsDevice != null && rsState.GraphicsDevice != myDevice)
{
    rsState = new RasterizerState { /* copy settings */ };
}
GraphicsDevice.RasterizerState = rsState;

When it happens

Trigger: Creating a RasterizerState, assigning it to device A via GraphicsDevice.RasterizerState = myState, then assigning the same instance to device B. The check at RasterizerState.cs:149-150 fires when GraphicsDevice != null && GraphicsDevice != device.

Common situations: Multi-window or multi-adapter rendering with shared state objects. Headless rendering with a second device. Per-test device creation reusing state objects. Device recreation without creating fresh state instances.

Related errors

• This blend state is already bound to a different graphics de
• This depth stencil state is already bound to a different gra
• You cannot bind a default state object.
• You cannot modify a default rasterizer state object.
• You cannot modify the rasterizer state after it has been bou

AI-assisted analysis of MonoGame/MonoGame@1d71bbd0ff (2026-08-13). Data as JSON: /api/errors/500460afdd169ac8. Report an issue: GitHub.