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Technical Group Reports --- Rendering and project management

Arts Col 753, Animation Production with CSE 682, Computer Animation Winter 2010 Professors: Maria Palazzi and Rick Parent. Technical Group Reports --- Rendering and project management. Group Members: Jane Drozd, Adam Kane, Kang-che Lee, Shengying Shen, Ross Wang. Outline.

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Technical Group Reports --- Rendering and project management

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  1. Arts Col 753, Animation Production with CSE 682, Computer Animation Winter 2010 Professors: Maria Palazzi and Rick Parent Technical Group Reports--- Rendering and project management Group Members: Jane Drozd, Adam Kane, Kang-che Lee, Shengying Shen, Ross Wang

  2. Outline • Rendering: • playblast • controlling rendering quality • software v. hardware rendering • render output: image formats, channels, etc. • batch rendering • the ACCAD render-farm • render layers • Project management • groups • sets and partitions • making an object unselectable (template) • display layers • copies v. instances • file referencing • proxy references

  3. Rendering

  4. Playblast • A fast way to render in Maya • Use screen capture to make animation • Make sure the area to be displayed is not obstructed

  5. Playblast Steps • Window -> Playblast

  6. Playblast Steps

  7. Rendering Quality • Window -> Rendering Editors -> Render Settings

  8. Rendering Quality

  9. Software VS Hardware Rendering • Software • Computation done by the computer instead of special hardware • It is flexible programming • Slower than hardware since it needs more time for calculation • Hardware • Computation done through video card and drivers • It is faster than software rendering • Usually it produce a lower quality than software rendering

  10. Render Output • Formats • Default: Maya Image File Format (IFF) • Two main types: • Raster: pixel based format • TIFF, BMP, JPG… • Vector: line/curve based format • AI, SWF, SVG…

  11. Render Output • Channels: • Four main channels per pixel • 3 color channels • Red • Green • Blue • Alpha channel, used for transparency. • Depth channel may be used to record how far away a given pixel is.

  12. Channels

  13. Batch Rendering • Allows rendering of multiple images at once • Rendering an animation: • Configure options • Check Script Editor

  14. ACCAD Render Farm • Start->Programs->Graphics 3D->Submit to ACCAD Distributed Rendering

  15. Render Layers Example from Maya documentation.

  16. Reasons to Composite • Creativity • Modifiability • Efficiency

  17. Interface

  18. Caveats • Be mindful of compositor expectations • Color and channel interpretation

  19. Project Management

  20. Grouping

  21. Sets and Partitions • Sets – collections of objects. • Paritions – non-overlapping sets.

  22. Display Layers

  23. Display Layers visibility off

  24. Display Layers Template – wireframe - not selectable

  25. Reference – not selectable Display Layers

  26. Copies vs. Instances

  27. Copies vs. Instances

  28. Copies vs. Instances

  29. Copies vs. Instances

  30. File Referencing • allows you to assemble multiple objects, shading materials, animation, and so on, into a scene without importing the files into the scene. • allows users to segment scenes as required to suit the production workflow. • not like Importing where the objects get copied over. Referencing needs an active link. • reduces file size of the composited scene.

  31. File Referencing multi-level referencing House.ma House.ma Parent Scene Boy.ma Girl.ma Boy.ma Girl.ma Referenced Child scenes Shoes.ma Hat.ma Referenced GrandChild scenes

  32. File Referencing Lock: prevent them from being accidentally modified when they are referenced in your scene.

  33. File Referencing • When modified within the parent scene, the edits are recorded in a reference nodethat is created in the parent scene file. • The data in the original referenced child scene file remains unmodified. • Edits made to attributes within a parent scene have precedence over modifications made to the same attributes in the referenced child scene file lower in the hierarchy. Parent Scale in parent scene Child Scale & change color in child scene

  34. Proxy References • substitute one or more file references by creating a set of possible substitute references, known as proxies, for a given file reference. • are used to temporarily simplify complex scenes by substituting simpler versions of the objects into the scene. • allowing you to focus on the elements you need to work on while still maintaining a spatial context of the scene’s elements. • A proxy reference can only be created for an existing file reference. http://download.autodesk.com/us/maya/2009help/index.html?url=File_referencing_About_proxy_references.htm,topicNumber=d0e117929

  35. Proxy References File Referencing 2 ‘complex’ cubes exist proxy references

  36. Proxy References Proxy References :2 ‘simple’ sphere

  37. Thank you !

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