Unity Game Optimization - Third Edition

Using forward rendering

The advantage of deferred rendering is the ability to resolve many light sources with minimal draw calls. Unfortunately, if we follow the preceding advice and apply antialiasing effects, then this must be done as a post-processing screen space shader when deferred rendering is used. This can cost a considerable amount of performance compared to how the same technique is applied as a multisampling effect in forward rendering, potentially making forward rendering the more performant of the two options.