1.2.5. Blending and framebuffer operations

The pixel processor produces the final display data for the framebuffer after processing the tile buffer. To increase processing speed, each pixel processor processes a different tile.

The blending unit blends the fragments with the color already present at the corresponding location in the tile buffer.

The pixel processor tests the fragments and updates the tile buffer. The pixel processor calculates if fragments are visible or hidden and stores the visible fragments in tile buffers.

The pixel processor writes the contents of the tile buffer to the framebuffer after the tile has been completely rendered.

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