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Rendering

Univis rendering is built on custom SDF materials:

  • UNodeMaterial for the 2D path
  • UNodeMaterial3d for the 3D path

Main files:

  • src/layout/render/system.rs
  • src/layout/render/material.rs
  • src/layout/render/material_3d.rs
  • src/layout/render/shaders/unode.wgsl
  • src/layout/render/shaders/unode_3d.wgsl

Update Path

The render sync system:

  • reads UNode, ComputedSize, UBorder, UImage, UI3d, and UPbr
  • chooses the 2D or 3D path from the resolved root context
  • reuses MaterialHandles to reduce allocations
  • passes clipping data to the 2D material path

Why SDF?

  • clean edges under zoom
  • good support for border radius, clipping, and antialiasing
  • flexibility for both Round and Cut shapes