Assets Fast Screen Space Decals — Deferred, Forward, LWRP, URP

New thread: https://forum.unity.com/threads/released-ultimate-decals-deferred-forward-lwrp-urp.891343/

I made a deferred decal system for my game, but it was too easy (like, put stuff to the gbuffer and let unity do the rest) so I made them work in forward as well:

Full PBR
Can be projected onto arbitrary opaque geometry
Rendered with command buffers
Lights processed in a single pass in a loop (instead of multiple passes)
Without overlapping decals performance is similar to deferred

 

No decals:



Deferred:



Forward:



Lighting is still a bit wrong compared to deferred =\

 

Does this support Lightweight Render Pipeline ?

 

Looks cool, man.

I wonder, when should I use decals instead of materials?

 

Not yet, but it will

Let's say you have a place like this — multiple meshes with different materials (or maybe even of different types, like terrain and buildings) and you want to put a decal like it's put on the pic.

I don't know a way to do this without projected decals. You can create a mesh that fits this corner, but what if you want 100 decals like this? What if later you'll need to move them? Or change the map? Or maybe your map is procedurally generated at runtime and you want players to put decals at arbitrary locations?..

 

thanks! got it

 

LWRP decals (WIP)

 

GPU "raycasts" (actually, sampling depth at the given position and restoring normals using neighbor pixels)
Works with cutout shaders and doesn't need colliders

Though it works with skinned meshes as well, trying to simulate skinning by binding decals to nearest bones doesn't produce reliable results:

It can be used for manually placed stuff:

But for arbitrary runtime decals, I need something else

 

cool project! Can you explain how you made this work with LWRP?

I've been looking for a few days now for a decal solution that will work with arbitrary surfaces in LWRP and this is the only solution I've seen demonstrated to work

 

LWRP is the same as forward, and forward is the same as classic deferred decals with 3 additional steps:

1. Reconstruct surface normals from depth (depthnormals texture is not available in LWRP and might be disabled in Forward. You won't get per-pixel normals with this method but it's better than nothing. If it's enabled, mixing both textures gives the best results).
2. Before rendering decals, make a sorted list of lights affecting each decal. Currently I use compute shaders, can be also done on CPU (pretty easy for static decals/static lights, a bit slow for dynamic stuff), geometry shader (if used) or even vertex shader (with slight overhead of calculating the same stuff multiple times but still better than doing it on CPU).
3. Instead of writing to GBuffer, calculate lighting for each fragment in a loop using lists you prepared in the previous step
4. ?????
5. PROFIT!

 

Experimenting with decals on transparent surfaces

 

what is the news for decal on LWRP ?

 

Got mad at its bugs and postponed it
I'll return to it soon

 

Another method of rendering decals on transparent objects: Decal Projector
Works like unity built-in projectors, but faster and supports PBR
Can be injected into deferred pipeline (without alpha blending) or rendered separately after transparent objects

Note it's experimental and most likely won't be officially supported in the first version

 

Still hoping to see someday decals coming for LWRP...

/me keeps fingers crossed

 

FWIW, I would immediately buy this once released.

The Unity projectors are really useful if inefficient; my use of one is currently a barrier for me moving over to LWRP or HDRP.

edit: Would really, really want a way to write a custom shader that allows controlling how the decal is rendered into the buffer/onto the screen. I want to adjust based on surface normal

 

That looks really good, Any news about ETA? thanks

 

This thread is getting pretty old and seems to have died off. Has this been given up on or is there a usable version somewhere?

 

Hey, is this on the asset sore or on github?

 

it's unreleased.

 

We need this. Drcrck are you going to resume this? Does anyone know of an alternative solution? Would anyone that understands how this was achieved be willing to create this if they were paid?

 

Any update on this? It would really be appreciated

 

Throwing my hat in on this one too. The LWRP support for skinned and non skinned meshes would be huge. I probably dont speak for everyone but I would pay a lot of money for this.

 

Hey everyone, I'm back. The asset will be released soon. Not sure about LWRP in the first version though, but maybe. More details coming soon!

PS Skinned decal experiments:

 

I think it would be wise for you to release this with support for the LWRP on the first version. LWRP right now has no decal or projector support and many developers including me would pay a high price for it. I'd imagine most of your sales would come from those of us on the LWRP in need of a solution to this matter.

 

Ok, made it work with LWRP, will publish the first version soon

 

What's the performance comparision to https://github.com/Kink3d/kDecals ? Does it work with Single Pass?

 

any updates??

 

Is this still being worked on?

 

There were some unexpected delays but I'm back and it will be released soon with Deferred/Forward/LWRP/URP + Single Pass support

 

It was submitted for review shortly after the previous post, but it might take another 1-3 weeks before it gets published on the store.

You can check the online documentation to learn more about supported pipelines and platforms, their limitations and requirements: https://docs.google.com/document/d/1gFzfP-ERGMmu1hMIcmIYFkd4SZPomVBwyeFMEtX6ewI

Join discord to download a demo build: https://discord.gg/5xPmvFw

 

New thread: https://forum.unity.com/threads/released-ultimate-decals-deferred-forward-lwrp-urp.891343/

 

I really care about this plugin,
Does this plugin work fine on Android and IOS?