Animation 2

1
Animation 2

• IM209
• Eunjoo Lee

2
Further Reading

• Chapter 15, Maya 4.5 Fundamentals, New Riders,
  2003
• Tutorial
• Chapter 15 in Maya 4.5 Fundamentals

3
Learning Objectives

• Troubleshooting slow renders
• Batch rendering
• Compositing
• Alpha Channel
• Render Layers

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Troubleshooting slow renders

• Render Global Setting
• Resolution Large images take longer to render
  than small images.
• Antialiasing Quality Use fast, low quality
  antialising mode for testing
• Raytraced Shadows If the raytraced shadow must
  project through many small overlapping objects,
  it will decrease rendering speed.

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Troubleshooting slow renders

• Object Attributes
• All NURBS surfaces must be tessellated to
  polygons before the renderer can work with them.
• You can adjust tessellation levels in the
  Attribute Editor

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Tessellation Levels
Triangle Count 1280 U Division Factor 0.1 V
Division Factor 0.1
Triangle Count 16744 U Division Factor 3.0 V
Division Factor 3.0
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Troubleshooting slow renders

• Material Types
• EnvFog, LightFog, Particle Cloud, Volume Fog,
  Volume Shader
• These effects are very slow to render.

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Troubleshooting slow renders

• Camera Effects
• Depth of Field Everything is in perfect focus.
  You can set the camera to produce depth blurring
  but it will add render time.

9
Batch Rendering

• Render Current Frame
• Render Globals to cover a range of frames, and
  then use the Render Batch Render option to
  render the entire sequence
• When batch render mode begins in Maya, the
  rendering starts in the background and you can
  continue to work

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Batch Rendering with the Command Prompt

• You can build 12 different scenes during the day
  and render all of them during the night.
• Standalone Renderer If you look in your Maya\bin
  folder, youll see the file Render.exe
• Using MS-DOS Prompt you can render your file.
• Render filename.mb

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Batch Rendering with the Command Prompt
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Batch Rendering with the Command Prompt

• You can override the settings stored in an .mb
  or .ma file by using this format.
• render ltoptiongt filename.mb
• render x 512 y 512 cam persp im test of sgi
  filename.mb
• You can render multiple files in one go by using
  .bat batch file.
• render x 640 y 480 cam persp im testA
  filename1.mb
• render x 800 y 600 cam TopCam im testB
  filename2.mb
• render x 320 y 240 im testC of tga
  filename3.mb