Rendering

Orthographic Render Pass

To support URP, a custom render pass has been built whose sole purpose is to do an orthographic projection.

The limitation of the render pass is that, if you need faster rendering times, multiple GraphicsCommandBuffers are needed. Currently there is only 1 and there is no API that allows multiple instances of a GraphicsCommandBuffer.

OrthographicMeshRenderSystem

By default - we retrieve the OrthographicRenderFeature via the RenderCommandProxy. We iterate through each Canvas, retrieve the attached mesh and push the mesh to the an InstructionQueue embedded into the OrthographicRenderPass. The OrthographicRenderPass ends up flushing the instruction queue and executes the context of the GraphicsCommandBuffer in orthographic view. This happens every render frame.

Limitations

Currently, there is no way to add multiple GraphicsCommandBuffer - as adding multiple command buffers would mean parallel context execution on the render side.