Red is moving horizontally
White is moving vertically
Blue is moving away
Yello is moving closer and to the lower right
Create a motion-blurred image of a moving sphere.
To do this, use any form of ray tracing. For example,
for points (x,y) on the screen you could use rays
p(t) = (x,y,0) + s(0,0,1)
and a moving sphere:
center(time) = p0 + ((time-time0)/(time1-time0))(p1-p0)
You can fire rays through each pixel with jittered 1D times
between topen and tclose. The color of the sphere can be
a constant, i.e., no lighting is required.
Here are some examples illustrating some motion blur. All images were created with 1024 samples per pixel using a jitter sampling
| All spheres are moving. Red is moving horizontally White is moving vertically Blue is moving away Yello is moving closer and to the lower right |
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| Only the yellow sphere has movement |
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// this is sample code