University of Oregon - Department of Architecture - ARCH 424/524 Cheng - Advanced Design Development Media
Session Twelve
Rendering II: Lighting & Material Basics
Feb 13, 1997
Objectives:
To understand how lighting and materials can affect perception. and to gain control of manipulating these elements in a CAD program.
I. Project updates
Introduction of Hyperplace assignment, examples from UBC and HKU.
EXERCISE: With a partner, examine and discuss your projects. Be ready to explain your strategy for creating a compelling place description and completing the course requirements.
II. Lighting
A. Utilizing classic photographic lighting strategies gives baseline quality to renderings.
- A source located at 45 degrees from the view point will dramatize three-dimensional qualities.
- A weaker second source on the opposite side can act as a fill light to reveal what would otherwise be lost in shadow.
- Backlighting or high-contrast lighting can be used for special effects.
B. Pragmatic tips:
- Save your work often.
- Test lighting with
- small output files (Display --> Image Options --> Custom Image Size)
- start with lower quality rendering first (first no shadows or transparency or texture maps)
- simpler geometry (turn off detailed layers)
- Take notes about variables, view locations & settings
C. TRY IT:
Copy "Chinhse.fmz" and "win.zlb" from the Course Disk, Session 12, to your Guest folder.
This Chinese farmhouse was built when there was little paint available.
- Show what the house would look like after an interior paint job by selecting faces and changing their color. Can you make the topography look more realistic?
- The farmhouse currently has one interior light and one exterior sun. Show what the house would look like at twilight by adjusting the lighting and changing the background.
- When the village becomes more prosperous, the house could have more electrical lighting. Show how the lighting could be used to make a welcoming place.
III. Materials Basics
TRY IT: In a new file, create a simple box, sphere and cone.
- Try mapping the default Autodessus texture map onto each one.
- Once you are have centered the label onto the shapes, create a new texture map with the map.TIFF file. Can you spin the globe to show Austrailia? You can look at either globe.fmz or globe.GIF as examples.
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edited Jan 18, 1996 by nywcheng