MC Gaussian

use Vulkan Compute-Shader to rewrite 3D Gaussian splatting

roadmap

• ✅ Minimal example to verify feasibility(2024-4-10🎊works!)
• ☑️ SOTA GPU sort,by Nvidia 2022 research
  - (2024-4-21)multi-pass sort make it 4x faster than single pass,but still slower than sota
• ⬜ Camera control(in develop current now)
• ⬜ OpenXR support

showcase

	origin CUDA	Compute Shader
quality
PSNR	------------------------	$+\infty$(same in every single pixel😏)
FPS	227 fps / 4.4ms	65 fps / 15.2ms ( ⤵️245%)

GPU sort cost 11.5ms/15.2ms(75.6%),so It must be optimized!!