Render To Texture

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Render To Texture (RTT) is a method to capture a view of the game and turn it into an image. This image can be stored in a framebuffer and updated frequently.

RTT is commonly used for reflective water in a game. A camera is placed below the water surface, looking up. The image it captures is then textured onto the water surface, looking like a live reflection.

A DuDv map, the framebuffer texture that will be distorted, and the final scene. Video available here. Images by John Leonard.

3ds Max: Render To Texture

3ds Max has a utility named Render To Texture, which is used to "bake" textures from one geometry to another, for example to create Normal maps.


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