Godot

5937 readers

98 users here now

Welcome to the programming.dev Godot community!

This is a place where you can discuss about anything relating to the Godot game engine. Feel free to ask questions, post tutorials, show off your godot game, etc.

Make sure to follow the Godot CoC while chatting

We have a matrix room that can be used for chatting with other members of the community here

Other Communities

Rules

Posts need to be in english
Posts with explicit content must be tagged with nsfw
We do not condone harassment inside the community as well as trolling or equivalent behaviour
Do not post illegal materials or post things encouraging actions such as pirating games

We have a four strike system in this community where you get warned the first time you break a rule, then given a week ban, then given a year ban, then a permanent ban. Certain actions may bypass this and go straight to permanent ban if severe enough and done with malicious intent

Wormhole

[email protected]

Credits

The icon is a modified version of the official godot engine logo (changing the colors to a gradient and black background)
The banner is from Godot Design

founded 1 year ago

MODERATORS

[email protected]

How do you "separate" or "explode" a 3D mesh in Godot? (programming.dev)

submitted 4 months ago by [email protected] to c/[email protected]

19 comments fedilink hide all child comments

I'd like to create an effect similar to 2 death animations that exist in Crash Bandicoot 3.

In one of them, Crash is disintegrated: all the triangle faces get separated and fly apart. A similar triangle separation is seen when he dies from fire, the triangles fall separately.

The second is a simple separation of the legs and torso. One enemy that exists in the 1st stage can cut Crash in half, which will cause the torso to stay in place while the legs walk away.

you are viewing a single comment's thread
view the rest of the comments

[–] CaptDust 1 points 4 months ago* (last edited 4 months ago) (8 children)

It's probably not how naughty dog did it really though 🙂 Andy Gavin is pretty clever, the real Crash disintegration effect is probably individually manipulating the vertices of the character or somethin

[–] [email protected] 1 points 4 months ago (7 children)

I'm guessing Godot doesn't have the means to do something like that, direct manipulation of a mesh's vertices?

[–] [email protected] 2 points 4 months ago (3 children)

Of course it does, you can achieve that with a simple vertex shader by just moving each vertex in the direction of its normal. However, since the vertices are joined into triangles, this will just result in the model getting bigger instead of "disintegrating".

For that to work, you would need a model where each triangle is a separate surface.

Another way which might work would be to enlarge the model like I illustrated above while simultaneously making pixels which are further from an edge than a threshold value transparent.

[–] Sethayy 2 points 4 months ago* (last edited 4 months ago) (2 children)

The vertex shader is low enough level that it has no concept of shared vertices (nor really anything above triangles for the GPU), so this will work without individual meshes.

Here's a quick test project I made using a single cube mesh and the shader code

VERTEX += NORMAL * (sin(TIME)+1.0) *0.1;

[–] CaptDust 2 points 4 months ago

Slick!

[–] [email protected] 2 points 4 months ago

Ah my bad, perfect, then that's the solution!

load more comments (3 replies)

Godot

Links

Other Communities

Rules

Wormhole

Credits