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- This distribution has the following directory structure.
-
- distrib ------- radiosity (A package to compute global
- | illumination by Equilibrium based methods.)
- |
- -------- bin
- |
- |
- -------- doc
- |
- -------- src
- |
- -------- scene --- originals
- |
- |
- --- filter
- |
- |
- src
- |
- |
- preview
- (a Radiance
- Input file previewer
- on X11)
- |
- |-------- doc
- |
- -------- src
-
-
- The package has been developed under UNIX on a SUN-3
- workstation. It has been ported to and tested on SUN-4 and DRS-6000
- (a SPARC-RISC processor).
-
- 'make all' on distrib directory creates the executables.
- The executables and their function has been given below.
- More detail descriptions
- are available in the respective 'doc' directories.
- rad : A tool for computation of global illumination for
- a 3D scene composed of polygon, sphere,
- cylinder, cone and discs with plastic or
- mirror surface properties and only diffuse
- light sources.
- Image formats supported are created in a UTAH-RLE,
- Radiance Output Format and SUN-RASTER format.
- radfilter: An utility to convert a Radiance Input
- scene description to a format suitable for
- input to rad. Though 'rad' supports all the
- geometric primitives of radiance, it
- hardly supports any of the surface properties.
- The only ones supported are diffuse without
- highlight and mirror. So the filter does a
- highly gross approximation of surface information in
- radiance input files to one of these two properties.
- Example :
- All the light sources are assigned diffuse
- property.
- METAL is assigned mirror reflectance.
- Anything else is assigned pure
- diffuse reflectance.
- preview : A radiance input file previewer on X11 terminal.
- Presents a wireframe form of the geometries.
- Provides a minimal interface for scene composition.
-
- Execution of 'rad' does not require any additional feature.
- However, the execution of 'radfilter' and 'preview' require
- that the Radiance utilities are available on the path.
- Additionaly 'preview' requires X11 display terminal.
-
- Bugs, suggestions and corrections may be directly send to me
- (sumant@shakti.ncst.ernet.in, sumant@surya.ncst.ernet.in).
- --------
- Sumant N. Pattanaik
- Graphics & CAD Division
- National Centre for Software Technology
-