Rasterization

Computer Graphics · Geometry and Intersection · rasterization.yaml

Projects primitives to the screen and fills the pixels they cover. Cost scales with primitives times coverage, and visibility comes free from a depth buffer.

• supersedescorrects · extends
• classifiesspecializes · part-of
• substitutes forapproximates · alternative-to
• depends onrequires · validates

Colour is the family; a dashed line is the second member of it.

This node

• requiresdoes not work without Polygon Meshit fills projected primitives, not implicit surfaces
• requiresdoes not work without Z-Bufferper-pixel depth is what makes visibility local

Referenced by

• extendsBack-Face Culling adds capability to thishalf a closed mesh can never face the camera
• specializesForward Shading is a specific case of thisshades each fragment as its triangle is filled
• extendsFrustum Culling adds capability to thisgeometry off screen still costs vertex work otherwise
• requires3D Gaussian Splatting does not work without thisthe speed comes from sorted alpha-blended splatting
• correctsLevel of Detail fixes a defect in thisdistant meshes otherwise cost far more than they show
• extendsMeshlets and Mesh Shaders adds capability to thisculls per cluster instead of per triangle or per object
• part-ofPainter's Algorithm is a subtopic of this
• requiresShadow Mapping does not work without thisthe depth image comes from an ordinary raster pass
• correctsSupersampling fixes a defect in thispoint-sampled coverage aliases on every edge

References

• Background — Rasterisation on Wikipedia