VERLET Car Engine v2
Community Forums/Showcase/VERLET Car Engine v2
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 PlayGround  RaceTrack  250 vehicles!! Just a quick update of my Verlet Physics engine. Quite a lot has changed but it’s now in a better structure so that I can actually make something out of it!! CONTROLS ========= SPACE = reset simulation BACKSPACE = Swap between playground & racetrack CURSORS = Throttle / Steering F1 = Change Car F2 = Change Camera F2 = Reverse Camera View ENTER = Special Action JOYPAD ( Analogue only / Current setup is for PS2 but can be altered via JOYPAD.exe) Left Stick = Steer Right Stick = Throttle Button1 = SELECT = Change Car Button2 = TRIANGLE = Change Camera Button3 = R2 = Reverse Camera View Button4 = R1 = Special Action ( Tank fires / cop car siren / knightrider turbo ) CONFIGURATION ( see CONFIG folder ) ================================= JOYPAD.exe Change sticks / buttons / deadspots etc.. SETUP.cfg Can change screen settings / shadows onoff / number of vehicles / no of objects / CameraRange multiplier / Players ( 1 or 2 ). CHANGES ======== Train removed ( temporarily ) until I get it working better. Sorry :( Knightrider car Transit Van Slight update on overall vehicle graphics Barrier Object New Camera … very similar to GFA’s. Works better IMHO Simple Shadow system ( can be turned off in Setup.cfg ) Tiling system demo .. still in the works ( graphics unfinished too ) but you get the general idea of how I see it working. KNOWN ISSUES ============= Shadows are naff but serve their purpose Sometimes cars can’t selfright … fix in the works ( just press space ) Hope you like. Feedback welcome and please quote FPS if you can be arsed. Cheers Stevie http://www.steviegoodwin.plus.com/Engine_Test2.zip Oh, and for a bit of fun, test your machine to it’s limit by increasing the vehicles in the setup.cfg file … I can get 100 + 12 objects running at 30fps :))) |
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| Groovy! I'll give this a whirl tomorrow, Stevie. I'm so jealous of the great stuff you do. I really need to get my hands dirty with verlets, soon. :) P.S. Are you creating your models in-code, out of primitives? |
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| I'm re-uploading it big10p as I has max vehicles too high. Give me 5 mins. Yeah, creating vehicles in code using primitives then save them in my own format ... no good at modeling but I've got some good mesh functions to cull unwanted polys , colour and piece them together. It's painstaking but I'm getting quicker all the time. [EDIT] If you need any help with verlets etc.. give me a shout. I've thought of nothing else for around a year now!! Stevie |
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| S'OK, Stevie. I won't be downloading 'til tomorrow, anyways. ;) P.S. Are you a coder by trade? Just wondering 'coz you pump out some great stuff. I loved Z-Virus (that was yours, right?). :) |
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| Yeah, that was mine ... thanks :) I'm not a coder by trade ( I wish ) .. I'm actually a business analyst for a bank :( Always wanted to make some spare cash with coding .. even get something published for once. May seem a bit strange but it's kind coments like this that spur me on! Upload Done. Stevie |
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| Those are great models, especially for "hard coding" them, congrats so far Stevie. :) |
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| Yeah, this is really nice, Stevie. I still have the problem of my vehicle being permanantly in reverse, though. I guess this is a problem my end - maybe my joypad is interfering - because I don't think anyone else has reported this problem. So, this is your own verlet physics engine? It seems nice and fast. Any plans on releasing this as a separate lib? |
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| Great stuff Stevie, I get 30 to 35fps at 100+12 P4-3Gz 9800 Pro Marg |
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| Big10p .... it must be a joypad thing ....check out your configuration. Give me a shout if it's not. 'Mon the Scots!!!!! Happy Days!!! |
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| "Yeah, creating vehicles in code using primitives then save them in my own format " You are real 3DArtist... I like hovercrafts! Great stuff! 62-65 fps (P4/2.4 GF4200Ti) |
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| You are real 3DArtist... You must be joking ... :o) @ big 10p. Yeah, all my own ... will release this as a lib eventually [ I've had a good few e-mails about it :) ] but not until I've done something with it myself. Cheers for comments guys, much appreciated!! S. |
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| This is really really nice! The physics are amazingly fun (and easy to drive). Excellent work! |
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| Great engine! |
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| WOW... amazing work... I really hafta get back into physics engine programming... this is really well put together and very fast I imagine this engine could easily be used for a fun and playable game |
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| You must be joking ... :o) No! I really like your models. Not everyone can do it like you - simple, colorfull and funny (Lego-style). |
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| Yes I have to agree with Mikele, the visual style of the vehicles is very nice :-) I would also be very interested in this library, do you plan to make it free or commercial? How easy is it to implement the verlet physics onto vehicles using your system? |
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| No! I really like your models. Not everyone can do it like you - simple, colorfull and funny (Lego-style). Thanks mate ... off to make some more. |
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| I will release this at some stage for a small fee ( it's been alot of hard work!!) but won't be for a while I'm afraid. It's all very easy to be honest. I can model and set up a new vehicle in a couple of hours. Maybe it's not so portable atm as I do hard code vehicle stats into the functions. This is just temporary until I build an editor and decide on a file format for them. Without going into too much detail, each object in the game is a rigid body type and the vehicle type extends this. Atm, to create a vehicle you first set a constant which references this rigid body type and call a function like so ... const B_Monster = 1 VEHICLEcreate( B_Monster ) Within this function there is a call to BODYcreate( B_Monster ) which specifies the visual body( mesh) / pointmass / constraint / collision set up for this rigid body type. Each rigid body has 9 pointmasses and 36 constraints in a cube formation for stability. I've no need for anything more fancy than that. You then setup the vehicle's stats such as engine power / drive type / tyre type etc.... In the main loop the physics update is like so ... POINTMASSupdate CONSTRAINTupdate BODYupdate VEHICLEupdate That's about it really. Stevie |
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| don't ever apologize for charging for your work... --Mike |
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| Stevie, I can confirm my reversing problem is caused by my joypad. Works fine when I unplug it. @ big 10p. Yeah, all my own ... will release this as a lib eventually [ I've had a good few e-mails about it :) ] but not until I've done something with it myself. Fair enough! ;) |
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| This just keeps getting better... keep up the great work! |
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| I want this. This is cool!! |
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| Groovy :) It slows to around 32/35 fps with 100 cars on my box. |
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| I love the art as much as the physics, I wonder what story could be in there. The Formula 1 pilot even bends his head into the right direction, cool! But one thing - until you get the train back in, I hate it!! :-)) great stuff, and one buyer here, when you sell the code. |
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| Wonderful! This would make a rubbish race game, however, you could try and do some kind of puzzle game where you need to use the different vehicles to move stuff around to make a path for other ones, or use the off road to get to places the race car can't to push a button to make something happen... or something! The reason I say this is that it reminds me of bob the builder or something similar. |
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| Thanks again folks .. really appreciate the comments. 'm gonna stick with the graphics as everyone seems to like them :) But one thing - until you get the train back in, I hate it!! I liked the train too ... so it will be back in there .... it's taking a fair bit of effort to get it stable on the new track tiles. I'll get there though. This would make a rubbish race game, however, you could try and do some kind of puzzle game where you need to use the different vehicles to move stuff around to make a path for other ones, or use the off road to get to places the race car can't to push a button to make something happen... or something! Can't say I agree about the race game. I've play tested the 2 player mode with mates for hours and it was a hoot knocking each other off the track etc.. I don't want it to be JUST another racer though as they're 10 a penny. I was thinking of a similar idea to what you mention but still thrashing things about in my head. Simplicity is the key. Cheers Stevie |
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| Hehehe, mighty cool man! You gotta make summit out of this! |
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| This would make a rubbish race game, however, you could try and do some kind of puzzle game where you need to use the different vehicles to move stuff around to make a path for other ones, or use the off road to get to places the race car can't to push a button to make something happen... or something! Why? Does it seem too arcade-ish? Too difficult? Too easy? I think this is perfect physics for a racing game. |
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| hi. I love this, its so addicting, great phisics, cool graphics, lego style, you should make the tank actually do damage to things it hits. |
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| I like it too.. if you sell your system, and its plug and play with easy setups.. ill buy it. I see alot of kart/car games being made with this sytem if you release it. |
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| hi. I love this, its so addicting, great phisics, cool graphics, lego style, you should make the tank actually do damage to things it hits. If you're talking about visible damage then this aint going to happen. When the engine is complete it should be easy enough to do yourself if you want/need it. I plan on having a tanx style sub game but it'll be more a case of an increasing damage bar which effects the vehicle handling and eventually blows up. I'll probably create a simple vehicle editor which allows you to set everything up and save the vehicle setting which can then be loaded in game as a blueprint. The blueprint can then be copied for multiple versions of that vehicle. Obviously, this is not ode or tokomak but it will be much easier to implement into your own projects. Currently testing a new friction system where you can specify 2 x lateral friction vars for tires and these are interpolated between depending on speed ... should give less sluggish control at lower speeds. If it doesn't work the way I want then I'll go back to what I had. Looking good so far though. Stevie |
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| Sounds cool. I have noticed one thing about it though, i dont think you are empasizing on AI but i noticed that alot of cars end up getting stuck over the rivet on the racetrack and i have to knock/blast them out, also the tank tires got stuck on the overpass and i had switch from racetrack to playground to get unstuck. |
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| Nice .very quick.good stuff |
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| Sounds cool. I have noticed one thing about it though, i dont think you are empasizing on AI but i noticed that alot of cars end up getting stuck over the rivet on the racetrack and i have to knock/blast them out, also the tank tires got stuck on the overpass and i had switch from racetrack to playground to get unstuck. Yeah, ai was very much an afterthought in this demo but can you explain what you mean in more detail ... or show me a picture? BTW space resets the simulation :) |
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| it would be easeir to understand if i could get video of it, but basically, i when i was with the tank on the racetrack on the overpass, i backed up wierd and got the back wheels over then quickly accelerated again, but one of the wheels got caught under the overpass. Solution maybe to make overpass a bit thicker???? i dont know, i have little almost none exp with 3d, just like to look at it mostly, heres some imgs:   hope it helps with your neat project |
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| Got you now, I know about this .... and working on a fix as we speak. Cheers Stevie |
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| Excellent, truly excellent! Really fun and sturdy physics, feels solid. I also really love the graphical style. I'd love to see this turned into a sort of cartoon GTA or something... It made me nostalgic for the time when 3D was new, and I used to want to live in a little enclosed world made up of fladshaded polygons... Or a Super Sprint type racing game, or the similar one where you had weapons. Super Cars maybe? When PPU's are as commonplace as GPU's, oh boy, programming's going to be fun! I couldn't figure out how to play on the racetrack though. Default settings: 62fps 100+12: 20fps |
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| Nice new stuff. The Knight Rider looks cute... :) Only two little glitches found: 1. Spawning: You should check where the car is spawned. I spawned right on top of the trees which was funny... 2. Zooming in on cars from the top: I have blooby/blackish car models when the camera moves down to the car? (ATI card) Once it is "near" the car, everything works fine! |
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| I couldn't figure out how to play on the racetrack though. Hit Backspace Only two little glitches found: 1. Spawning: You should check where the car is spawned. I spawned right on top of the trees which was funny... 2. Zooming in on cars from the top: I have blooby/blackish car models when the camera moves down to the car? (ATI card) Once it is "near" the car, everything works fine! I don't really check the spawning but this will be fixed eventually .. not high on list of priorities atm. Not sure what your issue is re the camera, can you post a picture? I don't have this issue ... if anyone else had it let me know. Can't see it being a problem to resolve though. Cheers Stevie |
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This is what it looks like when the cam is zoomed onto a tank eg: All cars on screen are kind of shadowed somehow. |
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| I get that too. |
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| did you try running in 32 bit mode? check the config file. |
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| Hi Steve, This is great - my kids just spent an hour on it. If you do release it - a car editor would be great - adding some water - and a networked version (all requests from the kids) ;-) They love it - great job! |
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| 32 Bit fixes ir! Another issue: 3. car shadows flicker when driving... looks wired? |
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Strange that I don't get this visual problem even in 16 bit mode.Another issue: 3. car shadows flicker when driving... looks wired? Even when you're stopped dead? Not here so not sure what the issue is? |
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| They simply don't look "natural". Screenshot won't help much here. As the "flickering" is only when moving the cars. No big deal, maybe someone else got that as well. |
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| Of course they don't look natural ... the size of the shadow map is limited to the maximum power of 2 within the screenheight. It's a simple render to texture system so texel scale would be the reason for this "flicker". I think they give a limited feeling of depth and this is the best I can do until someone releases a stencil system. I'm hoping Lens system will help me out in this respect. Stevie |
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| I get the problem also, forgot to mention. |
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