Just wanted to share some videos of a particle system I created.
Hopefully I’ve linked in the videos properly.
… and the answer is, No. I have not linked in the videos properly.
This one looks so much better on my ipad … oh well.
http://youtu.be/ITD-6Um2XAI
Beautiful! How do you make this hazy aspect? How many partlcles involved?
It’s amazing! Show us your code, especially Meteor code. Please! [-O<
Looks very nice. I like the colour grading you’ve done on the age of the particles.
Looks like Autodesk Fluid FX for iPad!
Thanks everyone. My code is pretty sloppy. I start off just playing with one sprite and kept adding and adding to it. So I’d have to clean it up quite a bit to make it presentable. Plus being new to codea and lua I made some silly mistakes. For example, one of my functions I wrote is called RotateVec2 only later to discover Vec2:rotate.
@Jmv38 the videos display the number of particles currently in the system. As for the hazy effect, part of that is just the alpha value going to 0 over the course of the particle’s/sprite’s lifetime.
The following function is the key to making it all work.
I use it to scale the sprites as well as change the colors of sprites.
function lerp(a,b,amount)
return (a + (b-a) * amount)
end
```
I do have a question about that function. What do I need to write to make it so that I can call that function with colors. Currently I'm storing those values in Color1 and Color2 as vec4 variables and do the following.
self.displayColor = lerp(self.color1, self.color2, self.lifetime/self.maxlifetime)
self.displayColor = color(self.displayColor.x,self.displayColor.y, self.displayColor.z,
self.displayColor.w)
```
Well I just at this moment discovered. color:mix ... ... Nevermind :">
Like I said ... sloppy code.
Might also want to look at my Colour library.
I just changed my code to use mix instead of my lerp and the Alpha channel gets interpolated backwards.
Thanks Andrew I will look into it. Although part of the fun for me is making the mistakes haha.
A saw my mistake with the alpha channel color:mix problem. I need to do color2:mix(color1, amount) to get the same results as my lerp function.
Are you sharing this?
Have to say this looks spectacular. I understand if you want to keep this under wraps.
Coming from 3D GameStudio, a user once wrote a free particle system that made it very easy to implement it into our own projects.
Thanks for sharing this unique video.
Hint, hint 
.