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TerrainSculpt.doc
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1989-04-17
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TerrainSculpt
With this program it is possible to model fractal mountain ranges. The
model can be saved as a scene, which you can read with the Ray-Tracing
program SCULPT-3D. (The format is the IFF-file format SA3D).
Modelling:
What you see is a grid, which represents the height map of the mountain
range. Left of the grid you see a color table, each color identifying a
certain height (Blue is water, brown is rock. How darker the color, the
larger the height.) With the mouse you can make a rough model of the
mountain range. To do this move the mouse pointer to a square on the
grid and click on a mouse button. This way you can increase or decrease
the height of the grid element.
After you have completed the modelling you can tell the computer to
generate the complete mountain range. The computer does this with an
algoritm from the book 'The Science of Fractals'. (Editors Peitgen &
Saupe).
With some options you can get a great variaity:
VARIATION : Measure of roughness.
RASTER : Width of the model grid.
(And shows the grid after the rendering)
ANGLE : ViewAngle on the rendered mountain range.
SIZE : Size of the rendered mountain.
(When you want to use the model in SCULPT select a
low value, it consumes a lot of memory.)
Clear : Clear the grid.
To Sculpt : Save the mountain range as SCULPT scene.
The file is saved in the directory scene.
Render : Generation of a 3D view of the
mountain. For each step in the generation process,
the height map is shown.
Make sure that you have installed the directory scene and the math
libraries, otherwise the program won't run.
(c) IRRUDIUM
Ruud van der Sman
Oostblok 17
2291 XH Wateringen
Holland