gore system ideas

im trying to figure out the best way to do a gore/ dismemberment system in unity

my ideas were:

1 shaderbased to cutoff the damaged mesh
2 prefractured mesh
3 blendshape system
4 dynamic ,scriptbased mesh cut (way to difficult for me to write )

if anyone has a good solution please post me in the right direction

tnx

 

I'm horrible at this kind of stuff, so I'm thinking how I'd do it with my limited abilities, and I'd probably go with something like:

1. Create my character models with dismemberable parts as separate objects so they appear as submeshes in Unity
2. Name the parts in such a way that they can be easily findable, i.e., "l_hand, l_arm, r_leg"
3. When a critical hit is struck and dismemberment should take place, find the parts and any children and disable/remove them
4. Spawn an appropriate object that matches the part that was dismembered, add the physics component, and send it flying
5. Instantiate and activate a ton of blood particle effects at the location of the cut (pre-placed Transform points or may be able to use the Avatar/skeleton somehow) and on the spawned object

 

A lot of it probably depends on more in-depth usecase requirements like number of enemies per encounter, genre of game, camera perspective, art style, target hardware, number of unique enemie assets, customization/random variation options per enemy, etc..

 

yes also my first idea, but i was hoping for a more "simple" solution thru code or shader.
its a ton of work to make such a character and im a bit lazy

its for fps(pc)not more than 4 enemys at the same time.

 

think of the first soldier of fortune,

 

In the early days they just scaled the affected limb's bone to zero and then spawn some gibs & blood particles after. Pretty clever trick.

 

really? ill try it, tnx

 

Predetermined destructible zones with predefined modeled geometry. It is going to be incredibly tedious to model, by the way.

Blendshapes won't give you anything, shader won't be able to close holes in the mesh, script based will result in perfectly flat cuts unless you're willing to spend a year perfecting real-time booleans.

 

SF 1 and SF 2 used predetermined destructible zones, if I remember correctly. The only difference is that they had a LOT of zones. Heard the stories it was possible to carve out individual organs with knife. The stories are probably true.

 

yes lots of modelling work
im going with pixpushers method combined with some gib meshes.

 

A lot of modeling, but the best visual results.

Additional possible method is voxelizing object interiors, but this requires R&D, and is not guaranteed to work. If it works, it coudl produce results comparable to MGS: Rising katana.

It is possible to make things a bit more realistic by creating two more models: "guts" and "bones", and attaching them to model's skeleton, then hiding portions that are not going to be visible. This is more difficult to implement, but you will need to do it once, and will be able to reuse the same skeleton/guts everywhere.

But if you want a quick result, scaling limbs down is the way to go.

 

yes i will scale limbs and make guts and bones models to be attached to the scaled joint.

 

Unless I see a video of that I'm inclined to write that off as an urban legend. I played through that game back in the days and I think that's something I would have remembered. SOF 1 did have lots of hit-zones though and also uncommon ones like throat or groin. I think there also was one where guts would spill out if you shoot someone in the stomach with a shotgun. And they had different hit decals, including exist woulds I think.
Afaik the most sophisticated gore systems are in Dead Island and Dying Light where they feature more or less gradual removal of flesh from zombies' arms and legs.