Short: Fractal generator for Imagine (PC,Amiga included) Author: psauvage@aei.ca (Patrick Sauvageau) Uploader: psauvage aei ca (Patrick Sauvageau) Type: gfx/3d Version: 1.1 Requires: 68020+FPU, 80386+FPU or a SUN Sparc Architecture: m68k-amigaos Version: 1.1 (10,13,1996) Description: The objects generated are made of a grid of evenly spaced points in X and Y, like the primitive plane. The height (Z) position of the points is determined by a semi-random fractal function. Theses objects can be used as landscape or any crumpled surfaces. The size of all objects created is 100 unit in X and in Y. Internally, a "virtual" landscape of 1024 X 1024 points is created as a function of the random seed parameter. The height of a point in the real landscape is equal to it's closest equivalent in the virtual one. This way, all landscapes created with the same random seed are identical, regardless of their number of points. Included Files: fl.txt Documentation (This file) land.jpg Example picture Land.atr Imagine 4.0 attribute file used in land.jpg Exec Directory containing all executables FL_DOS.EXE MS-DOS version (386, FPU) FL_WIN32 Win32, console version (WinNT ou 95) FL_AMIGA Amiga (68020, FPU) FL_SOLARIS SUN Sparc running Solaris 2.5 Thank to Per-Erik Westerberg for making the Amiga and Solaris versions of FL. Usage: FL The name of the file created. If a file of the same name already exists, it will be overwritten without warning. Those two numbers must be greater than 3. They indicate the number of points in the grid. : This is any positive number(s). Each number create a different shape. By keeping the same random seed and changing the number of points, you can create more or less precise version of the same landscape. The Seed used is saved in the name of the object. The same seed will alway produce the same shape. This parameter is optional; if no seed are provided, a random one will be choosen. Exemples: fl land.iob 10 10 765 This command will generate an object file called "land.iob". This object will have 100 points (10 X 10). fl land2.iob 40 40 765 This command will generate a landscape with an identical shape as the previous one. Since it will have more points, it's shape will be more precise. fl land3.iob 25 30 This command will create a 100 unit by 100 unit random landscape, with 25 points in X and 30 points in Y, using a random seed. The value of the seed is stored in the object name. Attributes: Objects created with FL have default attributes (white, phong shaded); the file "land.atr" is an attribute file to add textures and colours to the objects. To reach the author: Send all comments, questions, "whish list" and bug repports to: psauvage@aei.ca Postcardware: This program is freely redistributable as a "postcard"ware. If you use and like this program, please send me a postcard of the place where you are living. This program cannot be sold or included with any sold product without my written approval. Patrick Sauvageau 2485 Chartier Saint-Hyacinthe (Quebec) Canada J2S 4A9 Per-Erik Westerberg: Per-Erik.Westerberg@uab.ericsson.se History: 1.0 First version for PC. 1.1 Fixed the bug in the size of the TOBJ chunk (All versions); 1.1a First Version for Amiga,Solaris and Win32.