By Eric Haines
The construction of ever extra real looking 3-D photos is principal to the advance of special effects. The ray tracing process has develop into the most renowned and robust potential wherein photo-realistic photographs can now be created. The simplicity, splendor and simplicity of implementation makes ray tracing an important a part of realizing and exploiting cutting-edge machine graphics.
An advent to Ray Tracing develops from basic ideas to complicated purposes, delivering "how-to" strategies in addition to an in depth figuring out of the clinical foundations of ray tracing. it's also richly illustrated with four-color and black-and-white plates. this can be a publication in an effort to be welcomed via all focused on smooth special effects, photo processing, and computer-aided design.
- Provides functional "how-to" information
- Contains prime quality colour plates of pictures created utilizing ray tracing techniques
- Progresses from a easy knowing to the complicated technological know-how and alertness of ray tracing
Read or Download An Introduction to Ray Tracing (The Morgan Kaufmann Series in Computer Graphics) PDF
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Additional resources for An Introduction to Ray Tracing (The Morgan Kaufmann Series in Computer Graphics)
Heckbert, P. S . and Hanrahan, P. , Beam tracing polygonal objects. Siggraph ' 84 [RT] . 1 8 . Joy, K . I . and Bhetanobhotla, M . N . , Ray tracing parametric surface patches utilizing numerical techniques and ray coherence . S iggraph '86 [OI] . 1 9 . Kajiya, J . T. , Ray tracing parametric patches . Siggraph '82 [OI] . 20. Kajiya, J . T. , New techniques for ray tracing procedurally defined objects. Siggraph ' 83 [OI ] . 2 1 . Kajiya, J . T. and Von Herzen, B . , Ray tracing volume densities, Siggraph ' 84 [OI] .
When the wheel is going slowly, the camera can faithfully record its samples of the image on film (usually about 24 or 30 samples per second). Figure 15 shows a wheel, with one spoke painted black. We're going to sample this clockwise-spinning wheel at 6 frames per second. Figure 1 6(a) shows our samples when the wheel is spinning at 1 revolution per second; no problem, watching this film we would perceive a wheel slowly spinning clockwise . Figure 1 6(b) shows the same wheel at 3 revolutions per second: now we can't tell at all which way the thing is spinning.
Note that the smooth edges turn i nto stairsteps - commonly called 'jaggies . ' No matter how high we increase the resolution, the jaggies will not disappear; they will only get sma ller. Thus the strategy ' use more pixels' will never cure the jaggies! 20 An Overvie w of Ra y Tracing
An Introduction to Ray Tracing (The Morgan Kaufmann Series in Computer Graphics) by Eric Haines