summary

• Category : Katana plugin
• Plugin Name : BD_IntegratedDeformCpp
• Features
  • Deform hair/fur with three types of deformation
  • Defer deformation evaluation

Demonstration

• DCC used in demo : Katana / Houdini

summary

• Category : Katana plugin
• Plugin list
  • TweakHair : tweak hair parameters (density / length / thickness / root thickness / tip thickness)
  • SimGuideDeform : deform static hair based on simulated guides
  • GuideDeform : deform static hair based on animated meshes
• Features
  • GuideRotationOffset : the offset that rotate the points of guide after the deformation proces
  • MeshPointOffset : the offset that move points of mesh after the deformation process

Offset Features

• When an animated mesh is stretched too much, Guides penetrate the mesh. and This is when offset features are needed

Deformation Only	applying MeshPointOffset	applying GuideRotationOffset

Optimization

• Issue : deformation calculation time is too long when move frame one by one.
• Solution : Implement deformation formula using C++
• Performance comparison.
  • feel free to refer to attached images which show ‘Render performance’ in katana (if you click image, you can zoom in )

Spec of Character	using lua script	using C++
- Character A - point count : 37,180,792 - strand count : 3,380,072	- Elapsed Time : 15 mins	- Elapsed Time : 28.73 sec
- Character B - point count : 5,465,140 - strand count : 1,477,814	- Elapsed Time : 2 mins	- Elapsed Time : 6.02 sec

Demonstration

• Data : simple demo character

Render results

• Data : simple demo character

summary

• Category : shotgrid RV plugin
• Tool Name : Version Canvas
• Features :
  • collect media of selected shots and play at once
  • compare different version number media of one shot

summary

• Build animated asset by using USD python API
  • Ani variant : only use usdPreviewSurface material
  • Render Variant : apply all shaders which are worked by loodev artist including displacement map
• arrange 10000 assets with iteration

Detail

1. Export lookdev and Animated geometry

• Do Material binding

Lookdev fragment	Geo fragment

• Asset - variant ( Ani / Render )

2. Author variantSet based on Render Purpose

Summary

• Check usd which is including arnold components
• Do CMake build arnold-usd github resource
• OS : Rocky Linux 8.8

Explanation

• Assemble data in lighting scene with Arnold operator and OTX tool
  • OTX
    • Select published lookdev data
    • Set Arnold shape attribute

Another case

• Path mapping between Windows and Rocky linux

• Specification
  • OS : windows
  • Data : maya scene lookdev asset data worked on linux
  • Issue : textures are not recognized
  • Solution : With aiStringReplace node which is one of the operator nodes, fix texture path at render time

Summary

• render approximately 7500 characters
• Data in used :
  • crowd : exported from golaem in aistandin
  • lookdev : exported with aistandin (arnold scene description data)
  • arnold operator nodes : lookdev information and all connection information

Details

• A. developed tools for work

  

• B. Each asset operator node tree
  • Selection : grouping shapes that is assigned to same material
  • Assignment Information : link between above selections and material
  • merge : merge all node

• C. all materials informations
  • export all asset’s lookdev into aistandin format (.ass)
  • and then import with aiInclude operator node

• D. merge all asset’s node tree and all materials, and then connect to crowd aistandin node

• E. render results
  • In hypershade window, we could find that there is no materials and texture nodes

• F. Zoom in and render results
  • render time : 00:01:05

• Assetlibrary
  • Import to houdini

Demonstration

Import from assetlibrary to houdini ( link )

• Assetlibrary
  • searching asset
  • confirm asset information
  • upload new asset
  • download asset
  • delete asset

Demonstration

Navigating demo ( link )

Uploading demo ( link )

Downloading demo ( link )

Delete demo ( link )