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gradient quad
A gradient quad is a simple benchmark: one rectangle filled with a smooth color gradient, used to measure raw draw speed.
A quad is a four-cornered rectangle, and filling it with a color gradient exercises the rasterizer and fragment shader on a trivial workload. Because there is almost no geometry, its frame rate reflects the renderer's baseline overhead and headroom rather than scene complexity. Hitting very high fps on it (e.g. ~2400) confirms the pipeline is not bottlenecked on simple drawing.
See also
- fpsFrames per second is how many complete images a renderer draws each second — higher means smoother motion.
- fragmentA fragment is a candidate pixel produced when the GPU rasterizes a triangle, before it is finalized on screen.
- framebufferA framebuffer is the block of memory holding the image being rendered, essentially the picture that becomes the screen.