5.5.2.6 Primitives with Adjacency
A triangle list with adjacency is where, for each triangle, you also include its three neighboring triangles called adjacent triangles; see Figure 5.14b to observe how these triangles are defined. This is used for the geometry shader, where certain geometry
shading algorithms need access to the adjacent triangles. In order for the geometry shader to get those adjacent triangles, the adjacent triangles need to be submitted to the pipeline in the vertex/i......
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