37 replies to this topic

[thenoller]

• Title: Shockwave Effect
• Description: A nice looking distortion effect done using surfaces
• GM Version: GM6
• Registered: Yes
• File Type: .zip
• File Size: 2.3MB
• File Link:
• File Mirror : http://www.host-a.ne...k13673/wave.zip
• Required Extensions: No
• Required DLLs: No

Summary

Made this example long ago but fixed the links after quite a while - I'm currently working on a set of tutorials to explain how to use surfaces and textured drawing to create certain effects - possibly including improved versions of these scripts.

You need GM6.0 or older (registered/pro version) to run the gm6-file!

How did you make this?
Primary by using texture primitives combined with surfaces, and then drawing parts of the screen with some offsets.
It's hard to explain, but I recommend you to look at the comments in the scripts.

Does this work in 3D?
Surfaces does not work in 3D - I assume it wouldn't be possible; however i recommend you to keep an eye out for another tutorial I'm about to make, where I explain ways to create realistic 3D-effects without going into 3D-mode.

Is scripts taking up lot of CPU?
I had to call and draw at least 20-30 scripts in order to make the system lack. That equals to about 800-1200 textured vertexes. I guess that surfaces and texture primitives are not the worst when it comes to performance.

It's awsome! Can i use it in my game?
You're free to use any of the scripts, but I ask kindly that you give me credit (My name and "compagny" is: Nils Rungholm Jensen - Northern Realm Jackal Gaming).

Hope I've made myself useful.
You will hear from me again soon.


MODERATOR EDIT : This topic has been fixed by me as the effect is really well done and looks fantastic.

Edited by Nocturne, 22 January 2012 - 07:51 AM.

[fhd]

where exactly we must put these codes in the example ..??

the example run smooth in my PC.

[ChunkOfAsbestos]

Hmmm... but, how would you get an object to do that every say... Alarm 0?

[Dantai_Amakiir]

cool effects

on the magnifying glass one, if you zoom in too far, the image flips upside down

[GMakerExtrodinare]

Really awesome effects, this makes me want to register

Do these waves effect everything on screen? Or just the background?

[ForteMP3]

VERY impressive script. While I'm not sure how it would work on my laptop if I used it in my game, I'm sure my desktop could handle it without any problems.

I must say, this is a beautiful set of scripts you've created, and I'm sure a lot of people will be getting ideas of what they can do with them (I already have one!)

However, I have noticed something a bit odd while messing with your example. To see what it might do with sprites, I made a small red X sprite and an object to correspond to it. No code, they just sit there on the screen. Anyway, I've placed them in the first room (The water one) and the one with the greenish background. When I first create some waves in the water room, the sprites are completely overlapped, as if they aren't there (IE, the effect is drawn over them entirely). Once I get to the green room, however, they're distorted as one would expect when inside the wave effect. Strangely enough, if I return to the water room and do the waves again, this time the X objects ARE affected by the waves. Any idea why they'd be drawn over on the first run, but not the second?

I ask this because the idea I have would be taking sprites into account, I'd want them to be distorted by the effect just as backgrounds would.

Anyway, as for performance, as a standalone it ran without slowdown until I started clicking fast enough to have about 20-30 of these suckers onscreen at once. Even then it didn't slow down to an extremely slow speed, but there definately was notable slowdown. I'll try this on my desktop (My main gaming machine, my laptop is my main game developing machine) a little later and tell you how they ran there as well.

[viestituote]

No I have not seen the effect before, in GM games that is.

This is a very beautiful effect and reasonably fast too. I'm glad you're letting me use it without bounds. I don't have an exact use for it right now, but I would even be ready to change my game a bit if that made it possible to include such a nice eye candy.

The only obvious drawback is that drawing it dynamically over animate objects would be a lot slower. I didn't test it, but taking a screenshot every step would certainly not be good for the framerate. But for example a ripple or an explosion shock wave would more likely traver on the surface of the game level, that is, under the sprites.

In the matter of fact, I've tried to produce this effect twice myself. During the GM5 era someone asked me, a GM mentor, if I could make this happen. And I actually used a similiar method to yours, but it was too slow to work. Later on I tried to make those steams that distort the background when a Formula One race is starting for a racing game I was making, but realized that to be to slow for GM5 too.

A great script, this'll go in my collection of snippets for future use, thank you.

[Indecom4000]

This is a great example, but for those of us that can't download, do you think you could post the source code for the scripts? That would help me alot, thanx.

[brosBM]

Very good work on the waves; I especially like the wave_inv function and black hole effect. I just saw a minor bug at the end of effects that use the draw_wave function, which is a small "twitch" in the edge of the wave right before it disappears.

[thenoller]

To everybody that has been complaining - I fixed the links; I know of most of the bugs in this example, but I'm not going to correct them before I release a new version anyway.

[RamboFox]

To everybody that has been complaining - I fixed the links; I know of most of the bugs in this example, but I'm not going to correct them before I release a new version anyway.

...but is it view compatible?...

[thenoller]

To everybody that has been complaining - I fixed the links; I know of most of the bugs in this example, but I'm not going to correct them before I release a new version anyway.

...but is it view compatible?...

It should be, as any used positions are fixed, and not relative to the view. Notice, however, that updating an entire room-size surface that is not view all at once, is properly not necessary.

[T. Westendorp]

Get a different host... Can't download anything from that site... Cos there is NO DOWNLOAD BUTTON DISPLAYED on the page.

[Dead1yM00]

Get a different host... Can't download anything from that site... Cos there is NO DOWNLOAD BUTTON DISPLAYED on the page.

you have to enter the colored numbers/letters you see in the top right hand corner to start the download.

[MaZice]

Awesome effects!
Is there any chance to use them in a huge room? Like, 8000x8000.
I tried that, but after going away from the x=1000 or y=900, the surface started to turn black and weird, showing waves purely black.
Best regards!

Edited by MaZice, 07 November 2008 - 04:48 PM.

[fasteddy_jones]

I'd really like to see this but your host just wont let me, everytime i downlaod it the connection gets reset and it ends the download,

fasteddy

[ApplePiePod]

MaZIce, surfaces normally have a max size of 1024x1024.

[MaZice]

Yes, but I've saw already some techniques (like icuurd's Low Cost) that tile surface to cover giants rooms. I tried that one, but it doesn't work well with this wave example. Maybe someone has achieved this already, and I'm asking for that =)
Salutt!

[Nocturne]

I´ve spoken to thenoller about the surface problem as he didn´t know about it and I´ve sent him a gmk demonstrating the error... So we just have to sit back and wait for this outstanding example to be fixed for larger rooms... (if it can...) Oh and I use surfaces much larger than 1024x1024 and have no problems. It is true that they should only be multiples of 1024 however, and that some older machines have problems with anything bigger...

Edited by Mark13673, 07 November 2008 - 05:51 PM.

[mireazma]

Very impressing.
I always look at the fps - I've twitched the mouse button as fast as I could to see a drop in the fps... it never goes below 50. I expected to drop to around 10-15 fps.

offtopic: you could take a look in the following links:

http://w210.ub.uni-t...pdf/09warp.html
which is explained here:
http://en.wikipedia....wiki/Warp_drive

I suppose you can do it