Vulkan: Render graph drawing #123168

Jeroen Bakker · 2024-06-13T09:00:59+02:00

Jeroen Bakker commented

2024-06-13 09:00:59 +02:00

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.

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.

Jeroen Bakker added this to the 4.3 milestone 2024-06-13 09:00:59 +02:00

Jeroen Bakker added the

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Vulkan: Render graph drawing #123168