OptiX 400 Shakedown

Following the migration of buffer and textures to work with OptiX 400 notice several peculiarities in photon propagation.

• optix 400 : seedPhotonsFromGenstepsImp FATAL : mismatch between CPU and GPU photon counts
  • Focussed workaround on gensteps using OpticksBufferControl
  • Issue
• FIXED : OptiX 400 Interop Wierdness
  • TODO
    • check performance implications of OptiX zeroing ?
  • FIXED : missing creation mode metadata
  • WORKAROUND : OptiX zeroing record buffer in generate.cu
  • Debug Approaches
    • OOAxisAppCheck
  • GGeoViewTest : Interop and Compute Mode not matching
    • interop
  • tpmt– : origin attraction and swarming
    • interop
    • compute
    • compute mode still matching g4
  • FIXED : interop : fail to pullback/persist sequence buffer
  • op –cerenkov
    • interop
    • compute