22d352dacc
This PR adds drawing support to the render graph. It adds support for draw, indirect draw, indexed draw and indexed indirect draw. Draw commands can only be executed within a rendering scope. Data transfer commands and dispatch commands cannot be executed within a rendering scope. Blender can still send in commands in any order and the render graph needs to find out the best order to minimize context switches (rendering/begin/end). This is the responsibility of the scheduler. The scheduler will push data transfer and dispatch commands outside the rendering scope: - data transfer and dispatch commands at the beginning are done before the rendering begin. - data transfer and dispatch commands at the end are done after the rendering end. - data transfer and dispatches in between draw commands will be pushed to the beginning if they are not yet being used. - for all other data transfer and dispatch commands the rendering is suspenderd and will be continued afterwards. Within a rendering context it is not allowed to perform synchronization commands. Any synchronization commands inside a rendering scope will be performed before the rendering scope begins. Nodes are now organized in groups to simplify the code around this area. Pull Request: https://projects.blender.org/blender/blender/pulls/123168
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