Stencil Buffer and Stencil Test
Introduction to Stencil The concept of Stencil is closely tied to the Stencil Buffer. We know that the screen has a depth buffer. By default, if the distance of the pixel being rendered is greater than the value in the depth buffer, the current pass is discarded. The Stencil Buffer is also a buffer, but unlike the depth buffer, which has built-in comparison behavior, the Stencil Buffer requires us to explicitly define how it should be processed. ...