{"record":{"id":"500460afdd169ac8","repo":"MonoGame/MonoGame","slug":"this-rasterizer-state-is-already-bound-to-a-differ","errorCode":null,"errorMessage":"This rasterizer state is already bound to a different graphics device.","messagePattern":"This rasterizer state is already bound to a different graphics device\\.","errorType":"exception","errorClass":"InvalidOperationException","httpStatus":null,"severity":"error","filePath":"MonoGame.Framework/Graphics/States/RasterizerState.cs","lineNumber":150,"sourceCode":"        /// <summary>\n        /// Gets or Sets a value that indicates whether depth clipping is enabled.\n        /// </summary>\n        public bool DepthClipEnable\n        {\n            get { return _depthClipEnable; }\n            set\n            {\n                ThrowIfBound();\n                _depthClipEnable = value;\n            }\n        }\n\n        internal void BindToGraphicsDevice(GraphicsDevice device)\n        {\n            if (_defaultStateObject)\n                throw new InvalidOperationException(\"You cannot bind a default state object.\");\n            if (GraphicsDevice != null && GraphicsDevice != device)\n                throw new InvalidOperationException(\"This rasterizer state is already bound to a different graphics device.\");\n            GraphicsDevice = device;\n        }\n\n        internal void ThrowIfBound()\n        {\n            if (_defaultStateObject)\n                throw new InvalidOperationException(\"You cannot modify a default rasterizer state object.\");\n            if (GraphicsDevice != null)\n                throw new InvalidOperationException(\"You cannot modify the rasterizer state after it has been bound to the graphics device!\");\n        }\n\n        /// <summary>\n        /// A built-in state object with settings for culling primitives with clockwise winding order.\n        /// </summary>\n        /// <remarks>\n        /// This build-in state object has the following settings\n        ///\n        /// <code>","sourceCodeStart":132,"sourceCodeEnd":168,"githubUrl":"https://github.com/MonoGame/MonoGame/blob/1d71bbd0ff4071a03caa583aa3bc56b85924a819/MonoGame.Framework/Graphics/States/RasterizerState.cs#L132-L168","documentation":"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.","triggerScenarios":"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.","commonSituations":"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.","solutions":["Create a separate RasterizerState instance for each GraphicsDevice.","After device recreation, instantiate new RasterizerState objects rather than reusing old ones.","Audit multi-device code for shared render-state references."],"exampleFix":"// before\nvar rs = new RasterizerState { CullMode = CullMode.None };\ndeviceA.RasterizerState = rs;\ndeviceB.RasterizerState = rs; // throws\n\n// after\nvar rsA = new RasterizerState { CullMode = CullMode.None };\nvar rsB = new RasterizerState { CullMode = CullMode.None };\ndeviceA.RasterizerState = rsA;\ndeviceB.RasterizerState = rsB;","handlingStrategy":"validation","validationCode":"// Before binding, check the state isn't on a different device\nif (rsState.GraphicsDevice != null && rsState.GraphicsDevice != myDevice)\n{\n    rsState = new RasterizerState { /* copy settings */ };\n}\nGraphicsDevice.RasterizerState = rsState;","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Create per-device RasterizerState instances.","On device recreation, build new state objects.","Audit multi-device code for shared render-state references."],"tags":["monogame","rasterizerstate","graphics-device","multi-device","invalid-operation","graphics","render-state","culling"],"backgroundTag":null,"analyzedSha":"1d71bbd0ff4071a03caa583aa3bc56b85924a819","analyzedAt":"2026-08-13T17:10:33.625Z","schemaVersion":2},"datasetVersion":"2026-08-13T19:17:28.613Z"}