How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

do you mind to explain it to me what is the different between this shader and the current HDRP decal mesh?

 

Yeah, I'm curious how to implement something like a two-pass decal shader with per GBuffer target masking in Shader Graph.

I'd like to know that too, I was not aware HDRP even had a mesh decal feature (its documentation is, uh, fairly lacking atm).

 

Currently there isn't much of a documentation, but maybe their HDRP repository gives some insights: https://github.com/Unity-Technologi...elines.high-definition/Runtime/Material/Decal
Especially the "Decal.shader" shows how they did their multipass DBuffer rendering.

 

@bac9-flcl
Hi, I don't know if you are active yet on this forum but if yes, could you check your PM inbox?
I've sent you a message.

Thank in advance.

 

@bac9-flcl
Same request as marcatore. Please check your inbox ;-)

 

Guys, I'm not sure but I think I maybe found the solution for the two pass problem with the smoothness! Not sure and I still have to test if this is working the way I intend it to and I'm kinda new to the whole blendmode syntax, but there are these lines in the blending docu:

https://docs.unity3d.com/Manual/SL-Blend.html
Additionally, you can set upper-rendertarget blending modes. When using multiple render target (MRT) rendering
, the regular syntax above sets up the same blending modes for all render targets. The following syntax can set up different blending modes for individual render targets, where N is the render target index (0..7). This feature works on most modern APIs/GPUs (DX11/12, GLCore, Metal, PS4):

• Blend N SrcFactor DstFactor
• Blend N SrcFactor DstFactor, SrcFactorA DstFactorA
• BlendOp N Op
• BlendOp N OpColor, OpAlpha

Which means we can set different blending modes for each gbuffer texture! I inserted a 0 after the Blend and the blending only affected the albedo gbuffer for example! Couldn't this solve the problem?? @bac9-flcl

edit1: By allowing blending on all gbuffers except the smoothness one, I already have my total smoothness control back, eventhough with hard edges, but still. I have rather hard edged smothness while every thing else blends, than a second pass just for smoothness. I'm using this shader on my terrain to get blending in deferred done and rendering the terrain twice is no option-

 

Wow, it might just solve the problem! That's a great find!

 

Hey guys, are there any news in regards to the ways of implementing the decal shader solution on the latest Unity versions?
Could it be achieved via shader graph?

 

As far as I know both projected and mesh decals are already supported in HDRP through the decal shader. I recall seeing examples of them in use a while ago, going back to projects like the FPS sample project.