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Geocache Versioning ?
issues
ΒΆ
Geocache Versioning ?
PMT Distributions
Offset Vacuum Base
[RESOLVED] Containing Material placeholder leading to DUD in buffer
Issue
CFG4 PMT Edge Double Reflect
FIXED : a TIR bug
PMT Test
Torch Stratification
Summary
Issue
Visualization Artifact Only ? NO
Time Banding
Time Compression Artifact ? YEP
Improve Time Compression ?
Changing Position/Time Domain used for record compression
Position Compression Artifact ? Dont think so
Refs
Leaky Analytic Sphere
Executive Summary
Refs about floating point epsilon
Polar Leak
Scaling the BBox
Radial Shooting from all directions
Leaky Triangulated Box
Summary
Initial Observation
Surface Debug : lacking hits due to surface/volume model mismatch
Chroma Solution to same issue
How to do this with GGeo ?
Approach using AssimpGGeo::convertSensors
Possibly a problem with PMT normals ?
Detdesc dive
Sphere Sphere Intersection
How to try some simple replacement cathode ?
Analytic OptiX geometry
Triangulated Case
Now with simplified OptiX geometry
Union Splitting
Mesh mending
Visualisations
applying fix to fuller geometry
oav fix
Check Topology of Meshes
Where to do mesh fixing ?
Mesh Surgery implemented in openmeshtest-
G4DAE/G4 triangulation code quickly goes down rabbit hole
Idea mesh scanning to identify internal faces
ExplodeZVertices makes it obvious that have two closed meshes, not interior faces of one
Single face eyeballing
Numerical view
many upwards going photons think their m1 is Ac when actually Gd
Isolate issue to single volume : 3158
OpenGL Eyeballing
NumPy Look at faces/vertices
Next volume : 3159, same structure acting OK
Check at detdesc level
~
Box Asymmetry
JPMT Scint not working
Moving Bookmarks
Groupvel Related issues
Optical Photon Propagation Times need to use GROUPVEL
Where/when/how to bring into GGeo ?
Another material property added to the G4DAE export ?
GROUPVEL in Geant4
G. Horton-Smith, 2005/04/14
Geant4 fix into 4.7.1
Observe
G4MaterialPropertiesTable::SetGROUPVEL
Recreate the calc ?
Bringing GROUPVEL into Opticks
How to handle GROUPVEL in comparison against cfg4- ?
Groupvel Kludge Unintended Consequences
Nopstep failing to appear : viz debugg
Optical Local Time Goes Backward
PMT Distributions
Scattering : GdLS missing RAYLEIGH
Scintillation Photons
Tracing thru Opticks
G4Scintillation
DYB Scintillation props
geant4_opticks_integration
G4/Op Integration Overview
Objectives
See Also
Approach
DONE
DEBUGGING
TODO
High Level Refactor
Objective
Approach
DONE
Tests Commands To Run Whilst Refactoring
[FIXED] OP record vis broken by OpticksEvent simplifications
[FIXED] Left field flakiness
FIXED: Photon record coloring M key seems wrong
[FIXED] CFG4 load count mismatch assert
[FIXED] GUI Photon Selection Failure
FIXED
Background
Approach to solving
Not Working
Working
[FIXED] GUI Photon Flag Names All NULL
progress
initial issue
Broken PMT Test
FIXED
Issue : photon record positional qwns all zero
Broken Indexing
G4GUN Debug
Integration starting point : pure g4gun
Evt debug with npy-/g4gun.py
domains
Opticks Space Domain
G4/GDML Space Domain
Geometry Selection
shape
Time Goes Backward
[FIXED] Issue : with GDML geometry opticalphoton time going backwards
Material Properties
[WORKED AROUND] Issue : old GDML export omits material properties
Taming Geant4 Verbosity
FIXED Issue : g4 geometry cleanup WARNINGs
FIXED Issue : g4 process verbosity control
Issue : g4 couples table noise, comment call to DumpCutValuesTable()
Issue : g4 init is slow, how to cache the physics tables ?
Issue : g4 Em noise control
Issue : g4 noise control
Borked Photon Record Colors
where do the colors come from
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