Following up on the previous post on GPU utilization and performance, and to provide a practical example, I expanded a bit on a topic discussed in brief: vertex shader exports and their impact on performance. To measure the performance cost, I set up a small experiment, rendering 250 instances of a model 10 times, each time increasing the number of vertex attributes by one until it reached a total of 10 float4 vertex exports, in addition to position export:
Interplay of Light 