/ue-dualcontouring-gpu

Primary LanguageC++MIT LicenseMIT

isosurafce reconstruct

method

dual contouring

main reference code

main component

  • computeshadertestcomponent:
    • control the compute shader pass
    • output is the vertex position
  • meshgencompoennt:
    • control the generation of mesh
    • get the vertex position from previous component and build octree to gen the index of mesh

result

img img img

profile

test platform:

  • rtx3060 12g
  • i7-10700
  • 32g 2933mhz
date compute shader mesh gen data range vertex num triangle num simplify
7.8 4 12 32 * 32 * 32 - - -
7.14 11 9 128 * 128 * 128 6200 12000 no
7.15 7 9 128 * 128 * 128 6200 12000 no
7.26 1 3 128 * 128 * 128 313 636 yes
7.26 1 8 128 * 128 * 128 6200 12000 no

optimize log

7.13

  • 解决octree生命周期中的内存泄露问题
  • 采用自底向上的构建方法减少octree构建时间
  • 将compute shader 进行重构，从而减少计算qef部分的时间开销

7.14

  • 实时更新rwbuffer的size取代初始值，减少通信bandwith开销

7.15

  • 修改rwbuffer的size更新策略，减少rwbuffer创建开销

7.20

  • 加入了减面功能

7.26

  • 通过进行预先筛选减少cpugpu通信开销