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Age	Commit message (Collapse)	Author
2017-11-09	Cycles: Replace __MAX_CLOSURE__ build option with runtime integrator variable	Mai Lavelle
	Goal is to reduce OpenCL kernel recompilations. Currently viewport renders are still set to use 64 closures as this seems to be faster and we don't want to cause a performance regression there. Needs to be investigated. Reviewed By: brecht Differential Revision: https://developer.blender.org/D2775
2017-11-05	Code refactor: remove emission and background closures, sum directly.	Brecht Van Lommel

2017-09-13	Code cleanup: deduplicate some branched and split kernel code.	Brecht Van Lommel
	Benchmarks peformance on GTX 1080 and RX 480 on Linux is the same for bmw27, classroom, pabellon, and about 2% faster on fishy_cat and koro.
2017-09-12	Cycles: change AO bounces approximation to do more glossy and transmission.	Mathieu Menuet
	Rather than treating all ray types equally, we now always render 1 glossy bounce and unlimited transmission bounces. This makes it possible to get good looking results with low AO bounces settings, making it useful to speed up interior renders for example. Reviewed By: brecht Differential Revision: https://developer.blender.org/D2818
2017-08-13	Code cleanup: make L_transparent part of PathRadiance.	Brecht Van Lommel

2017-05-11	Cycles: fix AO approximation for split kernel	Hristo Gueorguiev

2017-05-02	Cycles: Branched path tracing for the split kernel	Mai Lavelle
	This implements branched path tracing for the split kernel. General approach is to store the ray state at a branch point, trace the branched ray as normal, then restore the state as necessary before iterating to the next part of the path. A state machine is used to advance the indirect loop state, which avoids the need to add any new kernels. Each iteration the state machine recreates as much state as possible from the stored ray to keep overall storage down. Its kind of hard to keep all the different integration loops in sync, so this needs lots of testing to make sure everything is working correctly. We should probably start trying to deduplicate the integration loops more now. Nonbranched BMW is ~2% slower, while classroom is ~2% faster, other scenes could use more testing still. Reviewers: sergey, nirved Reviewed By: nirved Subscribers: Blendify, bliblubli Differential Revision: https://developer.blender.org/D2611
2017-03-27	Cycles: First implementation of shadow catcher	Sergey Sharybin
	It uses an idea of accumulating all possible light reachable across the light path (without taking shadow blocked into account) and accumulating total shaded light across the path. Dividing second figure by first one seems to be giving good estimate of the shadow. In fact, to my knowledge, it's something really similar to what is happening in the denoising branch, so we are aligned here which is good. The workflow is following: - Create an object which matches real-life object on which shadow is to be catched. - Create approximate similar material on that object. This is needed to make indirect light properly affecting CG objects in the scene. - Mark object as Shadow Catcher in the Object properties. Ideally, after doing that it will be possible to render the image and simply alpha-over it on top of real footage.
2017-03-16	Cycles: Define ccl_local variables in kernel functions	Sergey Sharybin
	Declaring ccl_local in a device function is not supported by certain compilers.
2017-03-13	Fix T50925: Add AO approximation to split kernel	Hristo Gueorguiev

2017-03-09	Cycles: SSS and Volume rendering in split kernel	Hristo Gueorguiev
	Decoupled ray marching is not supported yet. Transparent shadows are always enabled for volume rendering. Changes in kernel/bvh and kernel/geom are from Sergey. This simiplifies code significantly, and prepares it for record-all transparent shadow function in split kernel.