738f6d8127
The idea of this commit is to merge nodes which has identical settings and matching inputs into a single node in order to minimize number of SVM instructions. This is quite simple bottom-top graph traversal and the trickiest part is how to compare node settings without too much trouble which seems to be solved is quite clean way. Still possibilities for further improvements: - Support comparison of BSDF nodes - Support comparison of volume nodes - Support comparison of curve mapping/ramp nodes Reviewers: brecht, juicyfruit, dingto Differential Revision: https://developer.blender.org/D1673