Blender
V3.3
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This project redesigns the internals of Blender's compositor. The project has been executed in 2011 by At Mind. At Mind is a technology company located in Amsterdam, The Netherlands. The project has been crowd-funded. This code has been released under GPL2 to be used in Blender.
the new compositor has 2 goals.
The speedup has been done by making better use of the hardware Blenders is working on. The previous compositor only used a single threaded model to calculate a node. The only exception to this is the Defocus node. Only when it is possible to calculate two full nodes in parallel a second thread was used. Current workstations have 8-16 threads available, and most of the time these are idle.
In the new compositor we want to use as much of threads as possible. Even new OpenCL capable GPU-hardware can be used for calculation.
The previous compositor only showed the final image. The compositor could wait a long time before seeing the result of his work. The new compositor will work in a way that it will focus on getting information back to the user. It will prioritize its work to get earlier user feedback.