Official Experimental 2D Lights and Shader Graph support in Universal RP (previously LWRP)

Hi, just discovered this. On a tutorial I was watching they created an asset in Rendering > LR Pipeline > 2D renderer. That's no longer there. Is there a reason why or is it not needed? The tutorial says for 2D to create a custom renderer type instead of Forward Render for 2D games. Thanks.

 

There is a minimum version to see it in the package manager. It is not enabled by default.

 

Ah, yep, realized that after I posted. Got it all working now.


Now next question - I understand it's all 2d rendering, but is there a way to have a light shine from BEHIND a sprite, or is the only option to use Freeform to get that backlit effect?
Edit: Actually no freeform doesn't work, either, obviously as it still lights the front face of the sprite...hm....

 

Does this mean the sprite masks are working? I cant seem to get masks working:
Without LWRP (Working):



With LWRP on mask is ignored (or better put : Its always outside mask)


With LWRP (if i set it to show in mask then its completely hidden even)

 

Yes, excellent thank you

 

Found it in the sample project here:
https://github.com/Unity-Technologies/2d-renderer-samples

 

Ah i get it. It's the Mask of a image attached to a sprite rather then the sprite mask variant. So its a completely different mask. That's mask image inside the sprite tells what part reflects or not while the other broken mask hides part of sprites from other sprites.

So for me that Mask has lifted and i see the light.

 

Another question - with this new lighting system, do sprite masks not work using this system? Can't seem to get one working.
Thanks

 

Well i did gave an example at #105 sprite masking is working when you set scriptable pipeline to None and they stop working when you set them to LWRP

 

BUT if you mean the light setting (indicating where you want your sprite reflect light or not) that mask IS working but you have to add a extra texture and mark it as shown here

 

I saw we have a new version of the LWRP (6.9.0. I tried sprite masking but it didnt work still. (I was not expecting it as it was not to read in the changes doc but you never know do you.

I found a way however to get sprite mask working again and that is by setting a Custom range:

and as you can see then the sprite mask works.

 

Sorry was very late at night when i posted it and hadn't read up

 

They have mentioned that shadows / blockers are on the roadmap and should be coming later this year

 

yes I was just reading that! thanks!

 

Hello,
Will the custom sort axis option that was in the default renderer be brought to the 2D renderer at any point?

 

Hey! As far as I know the axis sorting works, but is currently hidden once you select a SRP. To set it, deselect the asset in the preferences, adjust, then reselect it

 

Thanks, I really appreciate it. In the meantime, I'm trying to apply a quick fix until you guys can resolve the issue. Can you give me any pointers ? Is there a specific part of shader code that is hard-coded to apply lighting on only XY? Or maybe I have to change some y coordinates with some z coordinates in the scripting end, I don't know, just guessing. We are trying to decide if we are going to use 2d lights or not, so the solution doesn't need to be perfect. I just want to get it working and present it to my team. Thanks in advance!

 

Hello,
I'm not sure if this was mentioned already, but I'm noticing odd behaviour with sprite normals when a) I have two instances of same sprite on screen and b) the sprites have been rotated. (LWRP 6.9.0)

https://drive.google.com/file/d/1rexYW3dhNULMs5CtCIFuLVvK-lBCtfBO/view?usp=sharing

The light direction "shifts" immediately once another instance is created.

 

meanwhile it seems LWRP is being replaced/changed as mentioned here.
So not quite clear on how to proceed.

 

Really really looking to this. So nice feature so far, that extra detail will top it! as no-weekend says, Awesome day night cycles. I was trying some lights for getting this done but i couldnt find any close to a directional light.

Great job so far!!

 

How would you achieve sun shafts right now?

 

Oh...Thank you so much!

 

Ah......what.......>>??? ><

 

I'm loving these new lights! I've already started using the Parametric light instead of the Point light for the 'black line' issue, and it's working fine at the moment.

Is there a way to adjust the path for the Freeform light? I see there is a Vector3[] shapePath but I can't assign data to it. What would be a good way to assign a new path for it at runtime?

 

I see. Thanks for getting back to me so swiftly! I can't wait.

 

Don't know if this is the appropriate place to post or if anyone can help. I'm absolutely dreadful when it comes to shaders and I want to create a sprite shader utilizing the 2D lighting system (based on the current sprite shader) for black and white influenced by this greyscale shader https://forum.unity.com/threads/sprite-shader-with-greyscale.222693/

Is anyone able to help? Can it be done? Thank you

 

Loving the package so far.

However, encountered this minor issue and thought to ask if its expected behaviour before working around it. Apologies if this has been brought up already.

It appears that the flip setting on sprite renderers causes lighting to be mirrored.



In this example the normal mapped sprites surround a point light. The top right group are not flipped and have the expected highlights.

The left sprite renderer has it's flip set on X, the bottom on Y and the bottom left on X and Y. This group is lit on the opposite side from the light on the axis of it's flip.

This is on a10 and a7 with LWRP package 7.0.0 and 6.7.1 respectively. The pictured example project attached.

Thanks,
Ak.

 

Thanks Christ, but I'm talking about something like this, not a texture like they did on Ori and the Blind Forest or Light Fall. Any ideas for that?

 

@Chris_Chu Don't know if you folks already saw this, I made topic with some feedback:
https://forum.unity.com/threads/2d-light-my-feedback-on-bugs-ux-etc.714392/

 

Im a little confused regarding the "mask not working yet" (and i'm currently only interrested in usecases pertaining to in-shader masking). Do you folks mean that when the texture is plugged in the material inspector (T2D with _MaskTex reference in the shader), it does not currently work? Because that's what i'm experiencing. I might be misunderstanding something, is THAT what @Chris_Chu explained, will be fixed later?

Also, to work around this, we can simply ignore the MaskTex input in the inspector, and implement our own masking inside the shader using a T2D mask Multiplied with Albedo (etc)? Or will that be bad practice to do for now. It works for me, but i assume it will become unnecessary, once the above masking is fixed?

Thanks for clarification

 

I just want to add to the shameless feature request :

If there is light, there must be shadow



I know this is on the road map, but this is really important.

 

@Chris_Chu @rustum
Hey, I switched my project to 2019.2 LWRP and 2D renderer -> couple issues with draw calls, because some sprites had just layer 1 in rendering layer mask?

Anyway, now to the real issue: Im using sprite atlas for my sprites, how do I get normal maps to work? I applied the normal map as secondary texture to one sprite, but it dont work
do I have to also make sprite atlas for my normal maps and does it have to same size as the other sprite atlas? very confusing

EDIT: there seems to also a problem with normal map when character is flipped x scale

 

when using Pixel Perfect Camera with Crop x,y and stretch fill,
mouse position and object position not match.
like OnMouseEnter Method, don't call exactly when mouse entered position over the object.
this issue find after change this LWRP pixel perfect camera.
not LWRP 2D pixel perfect camera is fine.
how can i fix this issue.

 

Hey there.
I'm expiriencing the problem with my normal maps rendering.
If you flip the sprite in-game (set ScaleX to -1), it starts to shadowing itself somehow...
And it's only with Normal Maps turned on

 

We just found out that Z Scale instantly becomes 0 when you set your scale to Vector2 (-1, 1). That's why Normal Maping is breaking.

 

Hello, few question about new Shader Graph's 2D master node:
1. When using new 2D renderer pipeline, "Scene Color" node don't work. Will this be addressed later or it's intended?
2. How do I stop shader, created in shader graph, multiplying final color by vertex color? I use this color myself in a different way and it just ruins everything. It should really just stop doing it if there are Vertex Color nodes in the graph.

 

I've been having some issues getting the stencil buffer to work using shader graph and the LWRP with 2D lights. Is it possible to set up a decal system similar to how the lights work? With the lights, you can define which layers are affected and I was wondering if it is possible to have a sprite set up to only affect certain layers so I could get my blood splattered platforms and grounded shadows working correctly again. Attaching a screenshot for the desired effect I'm looking for.

 

What's the recommended way to go about mixing 2D and 3D assets?

If we want to have 3D assets in our 2D world, will we be able to light them when using the 2D renderer, or should we use a standard LWRP setup and try to make those lights work with the 2D sprites?

 

Do you have any kind of estimates for that? We're probably going to want both shadows and 3D assets, but we probably won't start production on that project before 2020 at the earliest, and we might not need 3D before a while into that.

What we'd specifically want would be 3D assets we could place in the background/foreground, where moving past them would show the asset from different angles.

Would it be possible to solve that right now with a custom shader?

 

I reproduce all steps from youtube video and my game window show only dark blue screen. What I do wrong?
Upd: For some reason right after set pipline asset to project settings game window start use other camera whitch was on the scene. So resolved