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| PS3 Real-time Ray-tracing |
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IBM Interactive Ray-tracer (iRT) using three
Sony Playstation3s (PS3) to render a model
that is 75x more complex then those used in
today's games. Ray-tracing is the rendering
technique used by the film industry and is
considered to complex for today's game
systems. The code was written using IBM Cell
SDK 2.0 on Linux. The iRT is totally
scalable and only requires one Cell SPE to
run. More PS3s = More SPEs = Higher client
frame rates. All images are at least 720p 4x
multi-sampled, with dynamic light sources,
procedurally generated atmosphere, and
dynamic shadows.
Sorry about the bad camera microphone.
Download raytracer at:
http://www.alphaworks.ibm.com/tech/irt
Here's a link to the model we used:
http://www.turbosquid.com/FullPreview/Index.c
fm/ID/249122
Tags : Playstation3 PS3 Raytracing Raycasting Cell graphics SPE Linux rendering |
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Affichage : 532809
Durée : 104 s |
| PhotoTechEDU Day 3: Ray Tracing, Lenses, and Mirrors |
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Google Tech Talks
January 31, 2007
ABSTRACT
Photographic Technology Day 3: Ray Tracing,
Lenses, and Mirrors
In this lecture, we will study the principles
of ray tracing for simple optical components:
thin spherical lenses and spherical mirrors.
The notion of real/virtual object and
real/virtual images will be highlighted as
well as the computation of the position and
magnification the image. The case of thick
lenses will also be mentioned including the
notion of nodal and cardinal points.
Credits: Speaker:Rom Clement
Tags : google howto phototechedu day ray tracing |
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Affichage : 3274
Durée : 3451 s |
| Cell Processor Ray-tracing |
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This video shows a progression of ray-traced
shaders executing on a cluster of IBM QS20
Cell blades. The model comprises over 300,000
triangles and renders at over 60 frames per
second, depending on the shader, at 1080p
resolution using 14 Cell processors. Because
of the scalable nature of the ray-tracer it
can also render interactive frames on a
single Linux Playstation3 using only 6 SPEs.
Download raytracer at:
http://www.alphaworks.ibm.com/tech/irt
Tags : Cell Ray-tracing rendering PS3 graphics IBM Sony Playstation3 |
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Affichage : 100623
Durée : 39 s |
| Elite Force Raytracing Demo |
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Early demo of a raytracing version of Raven
Software's Star Trek Voyager: Elite Force.
Running on a single AMD Athlon X2 3800+ at a
resolution of 426x350 pixels. Single light
source (camera) and no shadows yet.
Full support for Quake 3 world architecture
(Bézier curves, md3 models) and surface
shaders.
Tags : Elite Force interactive realtime ray tracing raytraced game |
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Affichage : 7744
Durée : 210 s |
| Ray Tracing (Converging Lens) |
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Ray tracing diagram for a converging lens,
with the object beyond twice the focal
length. (yes, the light actually bends at
both surfaces, not the middle of the lens...)
This video was made with a Samsung Document
Camera (pretty much a digital video camera on
a stick)
Tags : lens ray tracing washburn physics |
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Affichage : 2579
Durée : 65 s |
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