Comment by adamjs

Yes-- Ultralight (the renderer underneath) has two modes: pure-CPU or pure-GPU. The GPU renderer does all drawing on the GPU using tesselated path geometry and pixel shaders.

All painting is actually emitted as virtual GPU draw calls, interface is here: https://github.com/ultralight-ux/Ultralight-API/blob/master/...

Platform-specific implementations (D3D11 / D3D12 / Metal / OpenGL) are provided in the AppCore repo: https://github.com/ultralight-ux/AppCore