Image Processing
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OpenGL:
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Image Processing
To match the physical dimensions of advertising posters,
it is common for a Desktop Publishing image to exceed
10,000x10,000 pixels (RGBA).
IMPACT's Memory-To-Graphics high download rate enables
the hardware acceleration of a variety of applications,
which all need to tile their data.
Similar to the Volume Rendering and Terrain Following techniques,
the image is drawn - and processed - on a per-tile basis.
The new tiles are loaded from memory as needed, and then used
as textures for Rotation, interpolated Zoom, and real-time Convolution.
This demonstration prototype was developped for BARCO, in Belgium.
NB: For b&w images, 60HZ roaming can be achieved by pre-interleaving
the tiles and loading them as pseudo-RGBA textures
(see TEX_SELECT extension).
This technique is demonstrated by Bob Shakib's DEMO.shakib example.
These programs have been compiled and tested
on the following High and Maximum Indigo² Impact systems
(and it is always preferable to run them
on systems with 4 TRAMS):
- IRIX 5.3 All Indigo² IMPACT with patch 1105
- IRIX 6.2
They are expected to compile and run on the following systems
but have NOT BEEN TESTED:
- Infinite Reality
- Reality Engine
(5.3 with OpenGL Extensions Patch 918
(successor to 154))
The binaries included on v6.1 of the Developer Toolbox were
generated on an IRIX 6.2 Indigo² Impact system.
In order to recompile you must install the GLUT 3.0 software,
included on this v6.1 Toolbox, onto your own system. The inst
images or tardist file can be found in
toolbox/src/exampleCode/opengl/GLUT/inst
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