旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 뇝 � � � � � 栢栢栢栢方 栢� � � 栢� 栢� 栢� 栢� 栢栢栢� 栢� 栢栢栢栢� 栢� 栢� � � 栢� 栢� 栢� 栢� 栢� 栢� 栢� 栢� 栢� 栢� � � 栢� 栢� 栢� 栢� 栢� 栢� 栢栢栢栢� 栢� 栢� � � 栢� 栢� 栢� 栢� 栢� 栢� 栢� 栢� 栢� 栢� 栢� � � 栢栢栢栢方 栢栢栢栢� 栢� 栢栢栢� 栢� 栢� 栢方 栢方 � � � � T � R � I � A � D � 뇝 � � 突袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴� �袴袴袴袴袴袴袴� � � PRESENTS � � 훤袴袴袴袴袴袴暠 3D-Starfields In Turbo Pascal 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� Code By : Vulture Total Files : 4 File Type : 3d-stars source Release Date : 20th of October '95 Difficulty : Easy level Filename : VGA-VUL5.ARJ 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� Hey there! Vulture here typing this little textfile. Yeah, another Outlaw Triad release has hit yar screen. I just found an old little program on 3d starfields floating around my harddisk somewhere. I coded it some time ago and I thought "Well, what da heck... maybe somebody finds it usefull". So here it is! A new Outlaw release flushed into space (3d space that is ;-) 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� Well, I am aware that a 3d starfield is probably the most used routine in da whole width demo-scene (after the scroller;-) so I am not about to explain it here. Hey! If you really want to learn how to code gfx, study this source. It really isn't very difficult. But what you must know are the formulas needed to display a 3d starfield on yar screen. Here they are: NX := ((Stars.X shl 7) div Stars.Z) + Xoff; NY := ((Stars.Y shl 7) div Stars.Z) + Yoff; A star is build up by 3 coordinates, namely X,Y and Z. In order to show 3d-points on the screen, you must to some calculations first. In this case it's very simple. To get the vga's X value, multiply the stars X value with 256 and then divide it by it's Z value. Then add the Xoff, which is 160, to center it on the screen. The vga Y value is calculated in the same matter. That's it! The Stars.X is a random value between -160 and 160. The Stars.Y is a random value between -100 and 100. The Z-value starts with 255. Next, decrease the Z-value so the stars move towards the viewer. Or increase it so they move away from the viewer. There, I explained it to ya after all! Next thing to do is make a program which shows not just one, but a variety of 3d-stars. A single star does not create a starfield, now does it... ;-) Take a look at the program to see how this can be done. 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� Study the source and learn. But I've got one thing to say... I'm getting pretty sick and tired of all those lamers stealing source-code and then saying it's theirs (won't mention names...)! I mean, coders do not release their stuff so others can take the credit for it. They release it so otha people can learn from it and create demos/intros of their own. If you use other peoples sourcecode, then say so and credit them. Best thing is to get ideas from source-codes and code fcts yourselve. Btw, thanx to Denthor of Aphyxia for giving me a hint on these starfields. Well, that's it. Go and study the source and if you can, try to make some improvements on it. This source really isn't a hot piece of code so... ;-) If ya wanna contact Outlaw for some reason, call Blue Nose Productions and leave a message there. We are stated in the main menu! Ok, gotta dash now, bye... Vulture / Outlaw Triad 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� OUTLAW DISTROS � The Force � � Blue Nose Prod � � FireHouse � � +31 (0)36-5346967 � � +31 (0)345-619401 � � +31 (0)528-274176 � Open For More! 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� OUTLAW GREETZ DemoLisher (back in business), Ash (nice releases), Kr'33 (keep da gfx coming), Troop (coding a bbs together), Utter Chaos (at full speed), Thunderhawk (fanatic as always), all contacts on internet (you know who U R), and all otha (demo)groups around.... Bye! 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�