Render a camera view to a Render Texture

A Render Texture is a type of TextureAn image used when rendering a GameObject, Sprite, or UI element. Textures are often applied to the surface of a mesh to give it visual detail. More info
See in Glossary that Unity creates and updates at run time. To use a Render Texture, create a new Render Texture using Assets > Create > Render Texture and assign it to Target Texture in your CameraA component which creates an image of a particular viewpoint in your scene. The output is either drawn to the screen or captured as a texture. More info
See in Glossary component. Then you can use the Render Texture in a MaterialAn asset that defines how a surface should be rendered. More info
See in Glossary just like a regular Texture.

To create a live arena camera in your game:

1. Create a new Render Texture asset using Assets >Create >Render Texture.
2. Create a new Camera using GameObject > Camera.
3. Assign the Render TextureA special type of Texture that is created and updated at runtime. To use them, first create a new Render Texture and designate one of your Cameras to render into it. Then you can use the Render Texture in a Material just like a regular Texture. More info
   See in Glossary to the Target Texture of the new Camera.
4. Create a new 3D cube using GameObject > 3D Object > Cube.
5. Drag the Render Texture onto the cube to create a Material that uses the render texture.
6. Enter Play Mode, and observe that the cube’s texture is updated in real-time based on the new Camera’s output.

Additional resources

• Render Texture Inspector window reference
• Render a camera’s output to a Render Texture in URP