Hi friends! Not sure if i'm correct here, but my issue is heavily technical - but of course about game art. Anyway this is pure self-advertisment. I write an articles about...
"Fakes & Tricks of games which impressed me"
It goes about crazy ideas or awesome tech fakes which made an cool effect. I write about this in my blog and collected everyting i can remember. Feel free to comment about my stuff, explain what i didn't understood or tell me about what stuff impressed you.
Thanks for the link!
I added the "day time" answer for Matty6666 at the end of the article.
Some apps simply dont take in the files, other export em all wrong..
Anyone got any tips for free and decent video editing software?
Managed to finally get it working.
I have put descriptions of what I think is going on in the models in the description of the video.
Also.. what is the bb code for youtube stuff on these forums?
edit : ok, after some hours of download on this game dragonica (it's the original name) i managed to take some screenshot and look how it did work
as you might noticed, his month is very smooth and don't use actual 3D model of mouth, my guess is that it's the same basis with cubemap trick ! other game actually use this trick too but can't remember exactly which games....
the big difference from the usual way to make a full 3D mouth is that it have a visible polygones unlike the screenshot i posted here which you can clearly see it's actual texture.
well, i hope you will find out how these thing work really.
if anyone needs an actual real ingame implementation of that interior mapping technique check out the first crackdown ! (cant find a video on youtube sorry)
#13 Assassins Creed 3 - LoD Blending
1. Please don't oversee, that I answered everyone on in the last post of page 2. I don't want that people think i didn't noticed them.
2. Thank you so much for all the comments. I'm really happy that you guys like what i write. Most times people weren't really impressed when i talked about such stuff. But maybe this was because talking without example pictures is a but hard.
I'll answer you guys in the next post. No it's not that i want to push the thread, i just like to separate some stuff sometimes
I use Windows Movie Maker Live (not the old one) and VirtualDub or Video Editing.
Man, first of all, thanks for making this video! Soo cool! And the tricks are awesome. The tank tracks are just UV...i'm not sure. I mean the look pretty sharp when they stand still, but when they're moving, they get blurry. Like it!
If you allow me, i would just take this video and you text and pack all this together into an article. Of course writing that you're the writer of this article
Glad that you like the stuff. Yes, sometimes its hard to understand what tech people saying when to try to explain something
Thanks for suggesting stuff to have a look at. I have to see. Because normally i try to capture the "little" tricks. But of course you*re right, This massive stuff is also realy interesting.
I'm not sure if I understand correctly. For me it looks like a 3D mouth...
Thanks for reading the stuff
Good question and i asked the same! I asked a Crytek guy and he said 3 things. 1. you do a small "push" to have the offset 2. decals have a different material ID which maybe lets the engine prioritize? (my guess) 3. they delete the decal in the LoD meshes so the disappear when they are far away
Yeah Thanks for the comment. I wrote the same hehe.
hi warby, nice to see you here. thanks for the comment. i really have to checkout the modern engines Oh and this tip with crackdown is good! i have to chck this out!
These cool effects i saw also in gears of war 3. I'm not sure how they do it but i would guess its an animated alpha1 texture. A question i also have in mind about this is: when i have an alpha1 shader i would expect that this shader would ignore any pixels which aren't white. So it would only paint the white pixels and mask the rest out. If you save you texture with or without antialiasing it wouldn't make a difference. Thats what i thought but i was wrong. Here a small UDK test. I just changed the texture, not the blendmode (blend_masked).
hmmm yeah it does look like alpha1 textures were used, maybe they use 2 alpha1 textures, 1 texture scrolling up and one texture scrolling down as a mask of texture1? or something like that?
Hard to say without moving pictures...hm another question: Is your nickname come from the Earthsea Chronicle? There is an character named Ged.
Hey Simon, yeah maybe they are blending with a blurry version or a lower mipmap level while it is spinning really fast.
And sure go ahead and make an article of it =].
This happens because the alpha is tested for every screen pixel. When the AA'd alpha is filtered, you get a nice blobby shape. Then it's clipped using a bias value... screen pixels that have an alpha value that is darker than the bias value are clipped, the rest are not.
We have some good links for graphics/rendering tricks here
No its actually not very original haha, its just my initials G.E.D yeah sorry I dont have a video of it. fast forward to about 5min30 sec in this video to see some of the lava with this 1bit alpha effect. https://www.youtube.com/watch?v=Qj4kgql0VVQ
BBox I think you might be right as it seems so random when its in motion.
Thanks to bb0x!
#14 Kid Icarus - Tricks
#1 Fallout 3 - Edges
someone have been posted an article about ditching diffuse : http://artisaverb.info/DitchingDiffuse.html
for moment, i managed to know how to extract the models from dragonica but i don't know yet how to convert these dat file into actual obj files ^^; i will investigate more tomorrow !
I investigated the Deus Ex 3 Folds a bit more and here are my results.
#9 Deus Ex 3 - Folds
Thank you for the link. Will read this later!
Oh sounds good that you grabbed the models Hm....no idea how to convert dat to obj
Thank you for the link! I'll have a deeper look later.
after many hours of investigation, i managed to get a good software which it can directly extract Dat file into too many files !
once i do mess around after some hours, i did realised one thing that i was right about it but someone on this thread was right about 3D mouth because of somethine none of both were didn't have though :
the base model don't have any mouth or eyes ! however, we can indeed find the "face" item that you can actually override the base with it ! now, there the question : how they did disapear the base mesh for to see the inside mouth ?
there what i did managed to get :
now you can see how interesting this trick could be !
Could they be using the BW folds image as an additional bump and masking that with the noise, while using the noise for parallax?
Because when I saw that for the first time in game it looked like the folds sometimes disappeared, or became less noticeable.
Aaaalso... isn't reverse engineering illegal? =P I remember some notices about that..
But since DMCA reverse engineering is more restricted and potentially illegal (as in, not just get sued but perhaps go to jail). You're allowed to reverse engineer but they basically only allow it so you can get games working with your system (e.g. driver/windows conflicts, making games work in future/alternative OSes) There are "civil remedies and criminal penalties". Be careful.
There is reason why all those models being downloaded on DA, GMod, etc always carry this statement "By downloading this model, you're acknowledging that your have access to the original model or copy of the game, etc, and will be removed is the original author deems it so", it's kinda like a little loophole to avoid any penalties basically, as to how 'in stone' it is, I have no idea.
As for Deus Ex, yep, it's a scrolling mask that is lerped between the basic Nrm map and a tiled noise ontop of the nrm map or a noisy nrm, since you can control how strong you want something, you can get that nice middle 'blended' normal look, even going to double values for the recess for the normal map.
Not sure how expensive it would be.
so, it's enough legal to do that way but like you say, some game companies did not allow everyone do that for some reason. look at the game planetside 2 which the gamers who like to mod are not allowed to change the files of the game because they will get banned as soon as sony noticed it. and not only that, sony will litterally hunt family people who do the mods... kind of creepy ^^;
than look at quake and half-life.
i think more companies should include mod tools and editor like epic and valve do.
They probably simply gave the face a zdepth thats different from the face manually, making it so it always renders after the head.
But if you look at the side view you can not see anything of the simple head, maybe they just use the simple head model as an LOD or something?
Great how much time you invest to find this stuff out. I have no idea what they do with the face...maybe switch the face part completely?
Hehe the good old trick. Sometimes i just wonder because if you reconstruct the third color channel you have to invest time. But maybe this is totally cool. At least you have 1/3 of texturespace. We used this in Sacred 2 where we used the Blue channel for saving the specular. But this was only true for the ground textures.
I'm not sure what they're doing exactly. Maybe i should try to re-create this shader in UDK. Oh you bastard, since you mentioned that with the RE i always think about if its illegal.
Would be totally sad. Because its a lot of fun to investigate all this cool stuff and learn from it. Also the response from you guys is great and in the last weeks i learned more about tech then ever before. I hope i can find out thats RE is OK for research.
Kurt Russell Fan Club
I read the second of your links and this is a very good text. It seems the since the DMCA all got hard. Thanks for posting this!
I hope you're right.
Do you have an example video or picture of what you exactly mean?
#15 Left 4 Dead - Puke
Wouldn't it be kinda easy to just make them all point at the camera or player without any bones at all? A simple look at script thingy?
I used something similar in Unity once, and the code for it wasn't complicated at all.
But Kid Icarius second character with flames was juste amazing. And you say it use cross planes and uv scroll, have you some example of this trick ?
Thank you !
That's what i thought. But it turned out it was complicated. Also you have to have some limits. Because you don't want the eye ball rotate too much...i don't know. I'm not a coder, i have no idea how much work something like this takes In my case, it was too much.
I like it too!
in unity? 5-10 minutes without prior coding experience, with coding experience not beeing able to do it is just a lame excuse for not wanting to.
But on the other side, we made it possible pretty fast to destroy these eyes. Then, a new eyeball spawned but this time with physic. This means you could play football with it. This example shows, that sometimes it is easy to implement stuff.
Its really simple.
Notice how I scaled some uv's to add in a bit more randomness. I dont think the KI team did this, but they have smaller flames and "floating ones" as well as varying width's for the cross planes.
Note that the uv scrolling will be needed to be done through a shader. What you see in the .gif is just to demonstrate.
I'm impressed that this technique is, in fact, a modern vision of the "two planes crossed" for showing trees on old games.
I think I would never found such a configuration for made this. This will be usefull !
Thank you bb0x !
I've added the explanation about the flaming bones. @bb0x, i hope this is ok for you?
#14 Kid Icarus - Tricks
I added two GIFs to show the Sacred 2 eyes and the big one which has a eyeball you can play football with.
#15 Left 4 Dead - Puke
#16 Sacred 2 - Crystal Reflexion
These are just some personal words :,) Nothing official.
♥♥♥ Polycount ♥♥♥
Actually about the "reflections", it just looks like refractions, how they make water. But they increase the distortion amount way more than you would usually do for water.
If you look at the static image you showed, where you point out the "reflections" you can obviously see they are pointing in the wrong direction. The crystal on the left points to the right, yet it is "reflecting" the lamp on the left.
And the crystal on the right is pointing towards the camera, but the character that is being "relfected" is to the right of the crystal.
So yeah calling this reflecting and occasionally refracting is kinda misleading. It is fake refraction. Dummo, maybe I am just antfucking here.
Also a side note.. You could increase the quality of your blog by making sure you aren't making any spelling mistakes. For example you are using reflexion instead of reflection.
#17 Sacred 2 - Pulse Shader
Thank you very much!
Hehe good point. I started to be a reflection but the technical approach made it a refraction. Anyway, i like the result. But you're right. It's important to don't mess up all the tech words.
Of course i have to check the spelling. In case of the "reflexion" i didn't see a correction notice and because of that i checked the dict: Reflexion is possible but rarely used in British English. Of course i knew that and used it to make sure everyone gets that i'm super awesome in english Just kidding, i'll replace it. Thanks for mentioning!
Last technique sounds like it is more complicated that is should be. You could replace this whole thing by simply having a scrolling gradient shader and a mask to mask off the lights. You would need to make a secondary uv channel though to control where and when the light should be on.
But with the method used in Sacred 2, you seem to have more control, without messing with secondary uv channels, on where and when something should be on or off.
Hehe i dind't knew the difference between "reflection" and "reflexion" neither. What a thread, here you can learn tech & language
Yes the method is not really cheap but the control of the blinking areas is awesome. I'll look for more examples. Also we did the UV animation on other assets. Maybe i can find examples for this too.
#18 Battlefield Bad Company 2 - Smoke Column