The CopySource field is a member of the ResourceState enumeration within the Sandbox.Rendering namespace. It represents a state in which a GPU resource is used as a source for copy operations. This state is typically used when a resource needs to be read from during a copy operation, such as copying data from a texture or buffer to another resource.
Use the CopySource state when you need to perform a copy operation where the resource acts as the source. This is part of the resource state transition mechanism, which ensures that resources are in the correct state before operations are performed on them.
For example, before copying data from a texture, you would transition the texture to the CopySource state to ensure it is ready to be read from.
// Example of transitioning a resource to CopySource state ResourceState currentState = ResourceState.Common; // Transition the resource to CopySource state currentState = ResourceState.CopySource; // Perform copy operation here // ... // Transition back to the original state if needed currentState = ResourceState.Common;