◄ Wiki / Graphics
scissor
A rectangle that clips rendering so pixels outside it are never drawn.
The scissor test defines an axis-aligned rectangle on screen; any fragment falling outside it is discarded before being written. It is a cheap, hard-edged way to restrict drawing to a region — useful for UI panels, split views, or limiting a pass to part of the screen — separate from the smoother clipping done by the viewport.
See also
- scanline rasterizerThe engine that turns triangles and shapes into pixels by filling them one horizontal row at a time.
- shaderA small program that runs on the GPU to compute part of how a scene is drawn.
- sample-rate / per-sample shadingRunning a pixel's shading calculation separately for each anti-aliasing sample instead of once for the whole pixel.