LUA: How to animate models

[Scott Richmond]

Would have thought someone would have brought this up but apparently not (I gave it a good search). How does one animation models via LUA?

[Rick]

http://www.leadwerks.com/wiki/index.php?title=Entities#Animate

 

Probably the same way you animated models using C++/BMax. I think your Animate() function would need to be in the entities Update() method since some values passed to Animate() will need to change each cycle.

[TylerH]

I have animation working for both looped and one-shot animations in my Weaponwerks Library.

 

For looping:

frame = (AppTime()/100.0) % (endframe-startframe) + startframe

 

For one shot animations:

animstarttime = AppTime() -- Call this once when you first start the animation

...

frame = ((AppTime()-animstarttime)/100.0) % (endframe-startframe) + startframe

 

 

Then simply call model:Animate(frame,blend,0,1)

 

In cases where you need to speed-up or slowdown the application, you multiply the value to the left of the % (modulus) sign by a speed factor. 1.0 plays at default (has no effect), 0.5 halves the speed, 2.0 doubles the speed, etc.

 

If you need to compare the current frame (which is a floating point number) to a given frame (which is an integer) (i.e. I do this to check for sounds I have set to play at certain animation frames), round it to a whole frame using either math.ceil or math.floor (or code up a function like I did to ceil if the decimal place is .5 or higher and floor is less than .5)

[Scott Richmond]

Ah fantastic work TylerH! Thanks mate, I'll give it a crack tonight.

 

(May as well start using this rep system. +1 rep for you )

[TylerH]

Ah fantastic work TylerH! Thanks mate, I'll give it a crack tonight.

 

(May as well start using this rep system. +1 rep for you )

 

Thanks

[Josh]

I would do your animation in the object:Render() function. That way animation only has to be performed on models that actually get drawn.

[Scott Richmond]

I would do your animation in the object:Render() function. That way animation only has to be performed on models that actually get drawn.

 

Hrm, are you able to point to an example of that function in use Josh?

[macklebee]

Hrm, are you able to point to an example of that function in use Josh?

 

firepit.lua