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Last week File formats and exporting models 3DS Max 7 Bible
Chapter 3 Files types Collecting resources Saving your work Exporting XRefs Other ways of viewing files
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This week Cameras
Camera basics Using cameras Camera parameters Viewing through a camera
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Model A is due on Friday
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Cameras Virtual cameras duplicate the
functions and controls of real-world cameras
What controls does a real-world camera have?
A. Focal lengthB. Field of View
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Camera parameters Type Focal length Depth of field Environment and clipping frames
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Focal length The distance between the lens and
the light-sensitive surface Lens size
28mm wide angled lens 50mm normal lens 85mm long focus and more….
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Field of view Field of View
the width of your view as an angle with its apex at your viewpoint and the ends at the sides of the view
Relates to the lens size 28mm wide angled lens
75o
50mm normal lens 40o
85mm long focus 24o
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Create Camera From View Creates a Target camera whose field
of view matches an active, Perspective viewport.
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Activity Create an array of 9 cubes
Work in metres Note the sizes and distances
Add a camera Change a viewport to a camera Alter the lens size
Normal Wide angled Telephoto
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Depth of Field Simulates the
natural blurring of foreground and background scene elements Related to the
aperture setting on a real camera
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Depth of Field Rendering Effect The values set in the
Depth of Field parameters can blur things
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Clipping frame Exclude some of
a scene’s geometry and view or render only certain portions of the scene
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Activity Working with your set of cubes:
Position of four cameras as follows: Bird’s eye Overhead Worm’s eye Normal
Export as VRML and view Alter the depth of field Alter the clipping planes
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Questions You have been asked to model a race
track Describe the difference between Free and
Target cameras, giving an example of how you would use both
Give three different positions for static cameras and lens sizes to create different effects, discuss the effects and justify your choice
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Portfolio 6 A word document with 4 jpegs, each
with a view from a different camera of a scene with 12 cubes : One to demonstrate a wide angle lens One to demonstrate a telephoto lens One to demonstrate clipping One to demonstrate depth of field
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