What are you working on?

[pragma37]

Let's share our Malt related art here!

Everything is welcome, from your work in progress experiments to finished animations.

[pragma37]

I'll break the ice!

I recently was asked if it's possible to get outlines on shadows (Moebius style) with Malt.
And yep, of course you can! At first I thought you would need a post-process shader, but then I figured you can actually do it from the mesh shader too!

The shader:
https://gist.github.com/pragma37/a0fc10cf61c7e3d26beac5e0afc12fc6

[eballeste]

super cool! for anybody that is trying to run this shader, the NPR_lit_surface function requires two new parameters:

NPR_lit_surface(S.position, S.normal, S.id, L, i, Settings.Receive_Shadow, Settings.Self_Shadow);

[markjoshua12]

Might be an unconventional use of Malt, but I've been using it for shader experiments!
It's really great to have the ability to use fragment shaders in Blender 😄

My first tests in Malt, basic raymarcher and mandelbulb

Trying out a volumetric shader

Basic raytracer ( lighting's broken atm 😛 )

[pragma37]

That's so cool! Thank you for sharing!
Ray marching is one of those things I always want to experiment with, but I never find the right time for it.

Actually, ShaderToy inside Blender has always been one of my goals for Malt. My hope is to make an environment where graphics programmers feel at home too, so artists can benefit directly from their experiments.

[Kolupsy]

breakfast_and_beer4.mp4

Made a little test shot using Malt basically as a replacement for Eevee shading, prototyped most of the shaders in Eevee first, then basically tried to match it in Malt as closely as possible and potentially even better.

TODO:

• fix outline of glass apprearing on steam effect (no idea how to do that yet)
• maybe add fake refraction effect if even possible to glass
• add more props / balance colors in scene
• convert some nodes into custom shader functions

[pragma37]

Looks great!

fix outline of glass apprearing on steam effect (no idea how to do that yet)

Could you upload a minimal reproducible example?

[Kolupsy]

Yeah so its about the steam getting an outline from the glass. In general a question would be how to control the line art properly. I think i now understood the Line Simple function but other than that I often just keep dragging sliders aimlessly :D

Image:

File:
https://drive.google.com/file/d/1QF75lKw-Zt2UEV_cWiZ-8hXnsBoiSgvC/view?usp=sharing

[pragma37]

I see, this is a current limitation.
The default Malt pipeline uses Depth Peeling for transparency.
https://developer.download.nvidia.com/assets/gamedev/docs/OrderIndependentTransparency.pdf
It basically consists of rendering transparent objects as opaque, but in multiple layers.
It avoids depth sorting issues and also allows applying arbitrary post-processing/compositing to each transparent layer.
But at the moment the line detection is not clever enough to take multiple layers into account.

[Kolupsy]

Very gimmicky but I did create an application template for Malt in Blender. It uses a custom startup file with new workspaces and all the shader editors replaced for malt tree editors. It also has its own preferences with malt enabled so that it does not need to load every time I open my default blender. I compiled a script that runs the application template into an executable.

Here is the code that I used for the executable:

from subprocess import Popen
blender_path = r"C:\Program Files\Blender Foundation\Blender 3.0\blender.exe"
blender_args = [
    blender_path,
    '--app-template',
    'MALT'
]
Popen( blender_args )

[pragma37]

Woah! That¡s nice!
I need to look into Blender templates. I updated my startup file for Malt, but that seems much better.

[Kolupsy]

Almost forgot. Most importantly of course:
Custom splash screen! :D

App templates as I see and read it are not very advanced and useful at the moment. Its rather inconvenient to install them and the installation method - parallel to how you are able to load addons from a folder separate to the app data folder - does not even work at the moment. But I was intruiged to find out whats going on with them when they recently mentioned that the devs will work on that this year. In the end it boils down to being able to launch blender with a separate startup file, user preferences and being able to execute code on startup. I havent found a great example yet but I hope this will change soon as more people are hipefully going to explore this topic.

[panthavma]

I rewrote my shader from Kronian Titans into Malt, now I can do lookdev exactly like it will appear in the game!
I'll be able to improve it faster too, and as a bonus I can finally check the palettes from here!

[Kolupsy]

I absolutely love the Malt lineart.
For this project I wished if I had access to the world matrices of specific objects, still trying to figure this one out. Its really tough because there is pretty much no way to 'drive' malt properties in node trees. I think I tried every possible way but still no luck. Had to resort to drivers in material overrides. Not ideal for several resons but it worked.

test_05.mp4

[Psi25]

Did you achieve the line sketch using screen space UV in the material or is it a post process shader?