Home » Recent acquisitions » Acorn ADFS disks » adfs_AcornUser_199804.adf » Features » Diffdim/ReadMe
Diffdim/ReadMe
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Recent acquisitions » Acorn ADFS disks » adfs_AcornUser_199804.adf » Features |
| Filename: | Diffdim/ReadMe |
| Read OK: | ✔ |
| File size: | 0482 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
Acorn user 3D series program information
----------------------------------------
The programs in this directory accompany the on going series describing
advanced graphics techniques and their application to 3D computer games.
Program 1 : Demonstrates the generation of fractal terrains.
Move the mouse to scroll the terrain.
Program 2 : Demonstrates the process used to plot the 3D terrain.
Moving the mouse left and right rotates viewer.
Verical mouse movement results in vertical viewer displacement.
Press left mouse button to accelerate, right to reverse and
middle to halt.
Program 3 : An improvement to program 2, whereby the distant parts of the landscape
are subtly represented using fewer triangles resulting in faster display.
Controls are the same as program 2.
Program 4 : Show the animated fractal cloud routine.
Note, if sufficient video memory and hardware is available Programs 2 and 3
will reconfigure to run using 24, 15 or 8 bit colour at 320 x 256 pixel
resolution.
For more information, please E-mail me at: pat@dcs.ed.ac.uk
Paul Thomson.
00000000 41 63 6f 72 6e 20 75 73 65 72 20 33 44 20 73 65 |Acorn user 3D se| 00000010 72 69 65 73 20 70 72 6f 67 72 61 6d 20 69 6e 66 |ries program inf| 00000020 6f 72 6d 61 74 69 6f 6e 0a 2d 2d 2d 2d 2d 2d 2d |ormation.-------| 00000030 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000050 2d 0a 0a 54 68 65 20 70 72 6f 67 72 61 6d 73 20 |-..The programs | 00000060 69 6e 20 74 68 69 73 20 64 69 72 65 63 74 6f 72 |in this director| 00000070 79 20 61 63 63 6f 6d 70 61 6e 79 20 74 68 65 20 |y accompany the | 00000080 6f 6e 20 67 6f 69 6e 67 20 73 65 72 69 65 73 20 |on going series | 00000090 64 65 73 63 72 69 62 69 6e 67 0a 61 64 76 61 6e |describing.advan| 000000a0 63 65 64 20 67 72 61 70 68 69 63 73 20 74 65 63 |ced graphics tec| 000000b0 68 6e 69 71 75 65 73 20 61 6e 64 20 74 68 65 69 |hniques and thei| 000000c0 72 20 61 70 70 6c 69 63 61 74 69 6f 6e 20 74 6f |r application to| 000000d0 20 33 44 20 63 6f 6d 70 75 74 65 72 20 67 61 6d | 3D computer gam| 000000e0 65 73 2e 0a 0a 50 72 6f 67 72 61 6d 20 31 20 3a |es...Program 1 :| 000000f0 20 44 65 6d 6f 6e 73 74 72 61 74 65 73 20 74 68 | Demonstrates th| 00000100 65 20 67 65 6e 65 72 61 74 69 6f 6e 20 6f 66 20 |e generation of | 00000110 66 72 61 63 74 61 6c 20 74 65 72 72 61 69 6e 73 |fractal terrains| 00000120 2e 0a 20 20 20 20 20 20 20 20 20 20 20 20 4d 6f |.. Mo| 00000130 76 65 20 74 68 65 20 6d 6f 75 73 65 20 74 6f 20 |ve the mouse to | 00000140 73 63 72 6f 6c 6c 20 74 68 65 20 74 65 72 72 61 |scroll the terra| 00000150 69 6e 2e 0a 0a 50 72 6f 67 72 61 6d 20 32 20 3a |in...Program 2 :| 00000160 20 44 65 6d 6f 6e 73 74 72 61 74 65 73 20 74 68 | Demonstrates th| 00000170 65 20 70 72 6f 63 65 73 73 20 75 73 65 64 20 74 |e process used t| 00000180 6f 20 70 6c 6f 74 20 74 68 65 20 33 44 20 74 65 |o plot the 3D te| 00000190 72 72 61 69 6e 2e 0a 20 20 20 20 20 20 20 20 20 |rrain.. | 000001a0 20 20 20 4d 6f 76 69 6e 67 20 74 68 65 20 6d 6f | Moving the mo| 000001b0 75 73 65 20 6c 65 66 74 20 61 6e 64 20 72 69 67 |use left and rig| 000001c0 68 74 20 72 6f 74 61 74 65 73 20 76 69 65 77 65 |ht rotates viewe| 000001d0 72 2e 0a 20 20 20 20 20 20 20 20 20 20 20 20 56 |r.. V| 000001e0 65 72 69 63 61 6c 20 6d 6f 75 73 65 20 6d 6f 76 |erical mouse mov| 000001f0 65 6d 65 6e 74 20 72 65 73 75 6c 74 73 20 69 6e |ement results in| 00000200 20 76 65 72 74 69 63 61 6c 20 76 69 65 77 65 72 | vertical viewer| 00000210 20 64 69 73 70 6c 61 63 65 6d 65 6e 74 2e 0a 20 | displacement.. | 00000220 20 20 20 20 20 20 20 20 20 20 20 50 72 65 73 73 | Press| 00000230 20 6c 65 66 74 20 6d 6f 75 73 65 20 62 75 74 74 | left mouse butt| 00000240 6f 6e 20 74 6f 20 61 63 63 65 6c 65 72 61 74 65 |on to accelerate| 00000250 2c 20 72 69 67 68 74 20 74 6f 20 72 65 76 65 72 |, right to rever| 00000260 73 65 20 61 6e 64 0a 20 20 20 20 20 20 20 20 20 |se and. | 00000270 20 20 20 6d 69 64 64 6c 65 20 74 6f 20 68 61 6c | middle to hal| 00000280 74 2e 0a 0a 50 72 6f 67 72 61 6d 20 33 20 3a 20 |t...Program 3 : | 00000290 41 6e 20 69 6d 70 72 6f 76 65 6d 65 6e 74 20 74 |An improvement t| 000002a0 6f 20 70 72 6f 67 72 61 6d 20 32 2c 20 77 68 65 |o program 2, whe| 000002b0 72 65 62 79 20 74 68 65 20 64 69 73 74 61 6e 74 |reby the distant| 000002c0 20 70 61 72 74 73 20 6f 66 20 74 68 65 20 6c 61 | parts of the la| 000002d0 6e 64 73 63 61 70 65 0a 20 20 20 20 20 20 20 20 |ndscape. | 000002e0 20 20 20 20 61 72 65 20 73 75 62 74 6c 79 20 72 | are subtly r| 000002f0 65 70 72 65 73 65 6e 74 65 64 20 75 73 69 6e 67 |epresented using| 00000300 20 66 65 77 65 72 20 74 72 69 61 6e 67 6c 65 73 | fewer triangles| 00000310 20 72 65 73 75 6c 74 69 6e 67 20 69 6e 20 66 61 | resulting in fa| 00000320 73 74 65 72 20 64 69 73 70 6c 61 79 2e 0a 20 20 |ster display.. | 00000330 20 20 20 20 20 20 20 20 20 20 43 6f 6e 74 72 6f | Contro| 00000340 6c 73 20 61 72 65 20 74 68 65 20 73 61 6d 65 20 |ls are the same | 00000350 61 73 20 70 72 6f 67 72 61 6d 20 32 2e 0a 0a 50 |as program 2...P| 00000360 72 6f 67 72 61 6d 20 34 20 3a 20 53 68 6f 77 20 |rogram 4 : Show | 00000370 74 68 65 20 61 6e 69 6d 61 74 65 64 20 66 72 61 |the animated fra| 00000380 63 74 61 6c 20 63 6c 6f 75 64 20 72 6f 75 74 69 |ctal cloud routi| 00000390 6e 65 2e 0a 0a 0a 4e 6f 74 65 2c 20 69 66 20 73 |ne....Note, if s| 000003a0 75 66 66 69 63 69 65 6e 74 20 76 69 64 65 6f 20 |ufficient video | 000003b0 6d 65 6d 6f 72 79 20 61 6e 64 20 68 61 72 64 77 |memory and hardw| 000003c0 61 72 65 20 69 73 20 61 76 61 69 6c 61 62 6c 65 |are is available| 000003d0 20 50 72 6f 67 72 61 6d 73 20 32 20 61 6e 64 20 | Programs 2 and | 000003e0 33 0a 77 69 6c 6c 20 72 65 63 6f 6e 66 69 67 75 |3.will reconfigu| 000003f0 72 65 20 74 6f 20 72 75 6e 20 75 73 69 6e 67 20 |re to run using | 00000400 32 34 2c 20 31 35 20 6f 72 20 38 20 62 69 74 20 |24, 15 or 8 bit | 00000410 63 6f 6c 6f 75 72 20 61 74 20 33 32 30 20 78 20 |colour at 320 x | 00000420 32 35 36 20 70 69 78 65 6c 0a 72 65 73 6f 6c 75 |256 pixel.resolu| 00000430 74 69 6f 6e 2e 0a 0a 46 6f 72 20 6d 6f 72 65 20 |tion...For more | 00000440 69 6e 66 6f 72 6d 61 74 69 6f 6e 2c 20 70 6c 65 |information, ple| 00000450 61 73 65 20 45 2d 6d 61 69 6c 20 6d 65 20 61 74 |ase E-mail me at| 00000460 3a 20 70 61 74 40 64 63 73 2e 65 64 2e 61 63 2e |: pat@dcs.ed.ac.| 00000470 75 6b 0a 0a 50 61 75 6c 20 54 68 6f 6d 73 6f 6e |uk..Paul Thomson| 00000480 2e 0a |..| 00000482
.