[Released] Lux URP Essentials

Great job with this asset! We are currently using built-in renderer with Lux plus, but because of consoles and the overall optimization we are considering switching to URP. However we need features like dynamic snow coverage (in world space) and dynamic wetness (ideally with puddles). We would need it on Mesh Terrain Shader, Decals and Lit Shader/Lit Uber Shader. These missing features are holding us from switching to URP

Here are few examples from our game with Lux plus:

 

these may come some day – but no eta, sorry.
nice screen shots btw!

 

regarding urp: right now you have 8 additional lights. but when it comes to a city scene each car will just add 2 spot lights (front) and maybe just a single for the back lights. so 8 is not really huge amount here. and i wonder why you should go away from built in deferred before upr supports deferred rendering as well?

 

We had information that deferred was coming in 2020.1, but this have changed recently to 2020.2. So yeah, right now it would be pointless.

 

Hello! I'm using Unity 2019.2.7f2.

Currently having 2 problems.

Having some wrong backface reflections using an older version of the hair shader. The backfaces are extremely light. I tried using the updated version with VFACE and it looks like the problem persists + wrong zsorting.

^weird backface lighting with older shader


^wrong zsorting with updated shader

And my second problem is a weird alpha issue at the edge of the hair. This problem is only in VR, as it looks fine in the normal unity project.

 

z sorting within a single mesh of course is not suported. but enabling vface should give you proper results.
make sure you do not have double sided geometry.

regarding alpha: this could be related to msaa.

 

hey does this plugin works with ARFoundation?
I can see that the description in the asset store says "...using Vulcan"

is that "Vulcan" or "Vulkan"
are you meaning Vulkan Graphics API?
which is not supported by ARFoundation.

 

version 1.4.1 for urp 7.2 is available.

 

i have not checked ar. and vr only using the rift.

 

Okay.
It will run on OPENGELS3 right?
without the Vulkan graphics library?

 

i have not checked each single shader (there are just too many of these) but most if not all should be fine.
otherwise just let me know.

 

I just need the hair/fur shader. Can you please make sure will it run on OPENGELS3 only? (without vulkan)

 

i do not get any error when compiling for opengles3. so it should just be fine.

 

Okay, thanks.

 

Hello, I am using Lux URP for a variety of things, but I had a question about the Billboard shader. I am using it as a replacement for lens flares currently along with some scripting. It's working great, except for one small caveat.

When I rotate my head (VR) left or right, the billboard also rotates left or right, which is a bit disconcerting. If I check the "Upright" option, then this stops occurring, but it also has some other side effects, like the billboard will no longer rotate up and down if I move above it.

All I'd like to do is stop the left/right rotation with the camera when I twist my head, keeping all other functionality. How would I need to modify the shader to do this?

 

right out of my head: the easiest thing might be to gran the roll rotation of the camera and fed it as global matrix to the shader. there you would perform the regular billboard transformation in view space and finally (just before the shader goes to world and clip space) the roll rotation on top.

 

Installed the newest version of LWRP essentials. I am getting a strange flickering in the shadows on the Foliage and Grass shaders when rotating the cameras. Have tried a number of things, and fiddling with the settings. The previous version did not have these problems. Using unity 2019.2.19f.

 

the last update only included changes for urp and unity 2019.3. you should not have got this version as it is related to urp. do all the shaders still identify as Lux LWRP and not Lux URP?
if so: i stopped looking into unity 2019.2. as it used to be too buggy. 2019.1. and 2019.3 should be fine though.

 

just a minor update as 1.4.2 will only bring a new shader graph node for improved uvs and better texture sampling eliminating these diamond crosses from regular bilinear filtering at virtually no costs (well, some ALU ops):

 

## Version 1.42 has been published
### Added:
- Lux URP version: Improved Sampling Shader Graph node added.

 

@larsbertram1 is it possible to make fur with your plugin like this?



if not, please consider this as a feature request.

 

nope, multi pass shaders are not supported in URP...

 

sorry. I'm not familiar with shaders.
is it possible to make a single color fur?
just the white portion only?

 

it is not about the color
it is about the fibres: usually you would use one shader but make it use 8, 16, 32, 48 passes to draw the fibres as shells. as urp does not support multi passes you would have to assign 8, 16, 32, 48 materials and slightly change them from pass to pass!
mayb shader features or custom scriptable passes may help here...

 

Getting the same issue using 2019.3.3f1

 

this flickering occurs if you use URP 7.1.8.
you have to upgrade to 7.2.1.

 

I use your Lux_URP Essentials
Now,I found that some quesstion for human skin shader
The shadows was layered,When I select the Receive Shadows checkbox
Such as:


I will appreciate it if you could help me

 

oh, that is a problem of self shadowing, shadow bias and the smooth skin normal.

this screenshot shows light * shadows * NdotL
selfshadowing causes the artifacts or stripes you see.


adding a "harsh" normal map hides most of the artifacts, but some still are visible:


the problem with skin lighting: we want smooth normals for the diffuse lighting

using smooth normals (or just the normals from the geometry by setting the normal scale factor to 0.0) any shader will reveal these artifacts. URP Lit on the left, Lux URP Skin on the right:



so all you can do right now is less smoothing the diffuse normal.
in addition to this you may tweak the shadow caster pass.
find:
output.positionCS = TransformWorldToHClip(ApplyShadowBias(positionWS, normalWS, _LightDirection));
and replace it with e.g.:
output.positionCS = TransformWorldToHClip(ApplyShadowBias(positionWS, normalWS * 0.5, _LightDirection));

the next update will let you tweak the shadow bias in the material.

 

Hi i'm getting this strange black circles on the terrain shader, it happens when "Cast Shadows" is on.
It was on 7.1.8 (previous version of URPE and current version), i thought its a Vulkan bug on Linux's side but unfortunately not, on Windows in DX11 its the same.

 

i assume that you are either using URP 7.2+ and "old" Lux URP Essentials or URP < 7.2. but the latest Lux URP Essentials. With URP 7.2. Unity changed the way they handle shadows. So you have to make sure URP and Lux URP Essentials match.
I recommend to use URP 7.2.1. and the latest version of Lux URP Essentials.

 

I'm on URP 7.2.1, and URPE is on latest version, i've imported the URP7.1.8 Unitypackage by mistake because i still thought it relies still on LWRP and this package is intendet to use URP instead, just deleted both folders and reimported it without importing the separate unitypackage fixed it, thanks!

 

Version 1.43 is available
### Added:
- Lux URP version - Skin shader: Shadow and shadow sampling bias added.

 

version 1.4.3 should allow you to improve this.

 

Thank you very much for answering my questions.I'm sorry to disturb you again,I Want know:How can i acchive your effect of your screenshot in picture2？the details are great.

 

those a "bad" diffuse normals... as they are too harsh. they are fine for the specular lighting tho.
you can adjust the sharpness of the diffuse normals using the "bias" slider.

and upgrade to the latest version which contains properties to adjust the shadows.

 

I hava a quesstion for Hair Shader.
Could you tell me why the seam of uv appears here?I was puzzled.

 

look into your uvs. uvs are stored per vertex and then interpolated in the fragment shader.
nothing special here regarding the hair shader.

 

The first picture is your material in Demo screenshot ,I never change it,I want to know it's right? uvs seem to be no problem.

 

that is a unity standard sphere. you probably will provide better uvs on your custom hair mesh.

 

Hello, I tried this package out but have gotten many errors on import (I sent you an e-mail with more info). I'm mainly looking for the toon shader. The shader graphs don't seem to pick up their respective subgraphs (saying they are invalid). But I can open the subgraphs just fine. Any ideas? Thanks.

 

which version of unity do you use, which version of URP? and which version of the package did you import?
in case you use unity 2019.3.+ URP must be 7.2.+
you may have a look here: https://forum.unity.com/threads/released-lux-lwrp-essentials.712619/page-12#post-5569843

 

Hello, I'm having a problem with your skin shader. It doesn't seem to receive shadows from other objects, but kind of generally checks if it's in shadow. I tried messing with the shadow settings but nothing seems to help.

 

hmm, just works fine for me. do you have the right version of URP (7.2.+)?

 

Hi
very nice asset
but i have a question :
do you have any solution to apply stochastic procedural texturing on mesh terrain texturing or mesh terrain shader?

 

yes.

 

What is this approach ?
Where is that ?

 

oh, sorry: i overlooked the "mesh". procedural stochastic texturing is only supported on unity terrains.

 

This asset is great and has been a real time saver for switching to URP for VR. But I'm now having trouble with the water shader. It works fine in single pass but once I switch to single pass instanced edge blending doesn't work for the right eye. Using 2019.3.3f1, URP 7.2.1 and LUX URP 1.42.

 

hmm, it all worked fine in versions before URP 7.2. since unity has switched to their xr framework a was not even able to run vr... will have a look into it.