作者：Chris Hildenbrand

在本教程的第一、二、三、四、五部分我已经向大家介绍了基础知识，在第六部分，我们要学习的是如何制作爆炸效果。

现在我的教程终于一步又一步地进展到爆炸效果的矢量图了。大多数游戏中的爆炸，普遍是用颗粒特效做出来的，所以徒手做爆炸效果还是有点难度的。

我先做一个非常简单的爆炸，然后往上面一点一点地加东西。现在我们开始制作第一个简单的爆炸吧。

tutorial 1(from gamasutra)

这样我们就做好一个相当简单的卡通版爆炸效果了。这个很快也很容易就能做好的。（动画也简单——就是在爆炸的过程中不断调整图形的大小、改变深浅颜色）

一般来说，爆炸不止是冒烟发光，还得喷点东西出来才行。一个漂亮的爆炸少不了尘土、烟雾和碎片等。接下来我们就把这些东西加上去吧。

tutorial 2(from gamasutra)

看起来还是很卡通。我们试着加一些不那么单调的东西上去。

tutorial 3(from gamasutra)

这个爆炸可以拿来做动画了。你可以先从一个小爆炸点开始，然后给这个不断变大的爆炸点添加更多圈圈，越外面的圆圈颜色越暗。中间的爆炸点就是一闪一下，不要闪太久，不然看起来就不像爆炸，反而成了一个光源了。随着爆炸结束，暗的圆圈会变成灰色，再变成黑色，同时收缩，最后消失不见（炸没了或是落到地上了都行）。

这太有意思了。我们再试一次吧。和刚才那个差不多，不过这个更大、更细致一点，还加上了明暗关系。

tutorial 4(from gamasutra)

（本文为游戏邦/gamerboom.com编译，拒绝任何不保留版权的转载，如需转载请联系：游戏邦）

2D Game Art For Programmers – back with a BANG!

by Chris Hildenbrand

Having covered the basics in [part 1], [part 2] and [part 3] and getting a little sidetracked in [part 4] while getting things moving in [part 5] – this time around it’s big bangs and explosions.

After a short break [due to some ongoing health issues] here is another step-by-step-tutorial into the wild side of vectors – well not really wild but a little explosive this time around. I was asked to write a tutorial on explosions, which didn’t seem that hard until I started… It’s become common practice to use particle effect for most ingame explosions, so doing an explosion by hand was a bit of a challenge.

I stared out with a simple very generic explosion and took it from there, added to it and added some more. Let’s start with the first simple explosion.

It’s a fairly generic, cartoon style explosion – quick and easy to create [and animate - by scaling the elements and fading to either light or dark as the explosion progresses].

Usually blowing things up leaves more than just a flash of light. Dust and smoke clouds and debris are part of a good explosion. Let’s add some of that.

This is still a very cartoony look. Let’s try something a little less ‘flat’ and add some volume to the explosions.

This explosion is a bit more work to animate. You would start with a smaller light centre that would grow and add more circles to it that go darker as they reach the outside. The flash in the centre is just that – a flash – don’t keep it on for too long or it will look more like a light source than an explosion. As this explosion dies down the dark circles would go grey and black, shrink and fall apart [either by imploding or falling to the ground].

As this is way too much fun – let’s try another one. Similar to the last one but a little more compact, detailed and with some shading.

I hope you enjoy this one as much as I do… It’s just too much fun to blow things up in style and I have to stop myself now and try and catch up with work (before writing the next tutorial that’s already playing havoc with my imagination).

Have fun and as always let me know how you go with the tutorial.（source:gamasutra）