[Closed] CgTalk Maxscript Challenge 018: "Wear and Tear"

thanks erilaz
looking forward to see the code wizards at work!

That’s a good one!
I always thought of doing somthing like this – but I never did.
This challenge motivates a lot. I think I will concentrate on surface scratches…
thanks!
Uli

Out of interest, how many people are working on or thinking about working on this? I’d like to get an idea of what sorts of challenges are entertaining you so far. We seemed to get a great response and conversation from the project management one.

While the subject is relaly intresting and I’d love to see something come out of it, I think its just too much for maxscript. Half of the stuff on the list would require some heavy math to look good on most of the objects and maxscript is SLOW, VERY VERY SLOW on math.

I also think that this challenge is way over my skills at the moment, its really hard to analyze mesh so you can properly break with down with booleans and simulate erosion.

The best way to look at the challenges is “Given my current set of skills and knowledge of what maxscript can do, how can I make something interesting?”

The list above is merely guidelines, you can literally do anything related to the topic.

For example, right now I am making an edge-wearer that takes a selected set of edges and roughs them up a bit. It’s nothing fancy, it merely does a series of tesselations and chamfers with some noise.

I understand that some of the challenges are going to be difficult for people just starting out or even intermediates, but if they weren’t challenging it wouldn’t be a challenge!

And yes, you’re right, a fully-fledged errosion simulation would kill maxscript.

I’m giving this one a try, but I agree that the maths are a little outside my comfort zone. I doubt I’ll be able to make a functioning, reasonable product.

But I guess something’s better than nothing.

Time is almost up people! How are we doing on this? Any progress?

Okay, I misread the requirements and wrote something different, but it only too 30 minutes so and it may be useful so here it is anyway.

I may write something a bit more appropriate to the challenge soonish.

(
	fn ExplodeElements obj =
	(
		convertTo obj editable_poly
		
		while (polyop.getNumFaces obj > 0) do
		(
			polyop.detachFaces obj (polyop.getElementsUsingFace obj 1) delete:true asNode:true name:(uniqueName (obj.name + "Part"))
		)
		
		delete obj
	)
	
	fn CrackUp obj depth detail chaos smoothing quads =
	(
		local arrObjs = #()
		
		hide obj
		obj = copy obj
		unhide obj
		
		addModifier obj (cap_holes())
		
		for i = 1 to depth do
		(
			s = geosphere radius:(length(obj.max-obj.min)/3.0) segs:detail
			s.pos = random obj.max obj.min
			n = noisemodifier()
			sm = smooth();
			
			addModifier s (n)
			addModifier s (sm)
			
			n.strength = (obj.max-obj.min)/3
			n.fractal = true
			n.roughness = chaos
			
			sm.autosmooth = true
			sm.threshold = smoothing
			
			
			ss = copy s
			
			obj1 = copy obj
			
			ProBoolean.CreateBooleanObjects obj1 #(s) 1 2 0
			ProBoolean.CreateBooleanObjects obj #(ss) 2 2 0
			
			ProBoolean.SetMakeQuad obj1 quads
			
			append arrObjs obj1
			
			convertto obj1 editable_poly
		)
		
		ProBoolean.SetMakeQuad obj quads
		convertto obj editable_poly
		append arrObjs obj
		
		for obj in arrObjs do
		(
			ExplodeElements obj
		)
	)
	
	for sel in selection do
		CrackUp sel 5 6 0.2 30 false
)

Written in Max2008(demo) should work in Max 9.

Just select some objects and execute.

Alright everyone, this is due today, I really want to see some solutions!