Drag and drop objects & lights with the mouse.

For optimal performance, the downloaded version is recommended. 


This scene demonstrates two plugins I've been working on. 

The first is the lighting. All light and shadows seen in this demo are the result of my code, running as a ScriptableRenderPass inside URP. 

The second is the pixel-width lines. 

Although Unity has the capability to render line meshes, it lacks the ability to import them. To get around this, I wrote a plugin that extends the .blend import process, allowing Unity to import line meshes, and calculate colliders and fill meshes from them.


If you're interested in source code, please let me know.

More information

Download

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Windows Build 22 MB

Install instructions

Download and unzip. 

Do not move the .exe out of the folder.

Comments

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Alessandro "NeatWolf" Salvati1 year ago

Hi, I don't know which technique you used but - is there any way you could implement smooth (distance based blur) shadows? or even with constant antialiasing? That's one of the biggest limitations of URP 2D lighting so far :/

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LordMlekk1 year ago

The technique I used here is

  1. Split all shadow-casting shapes into a list of line segments.
  2. For each line segment, generate a quad mesh.
  3. In a renderpass, render each quad mesh with a shader that displaces the outer edge away from the light source. These are all rendered to a screenspace RenderTexture. As this is done by the GPU, it's very fast.
  4. In a renderPass, multiply the current screen by the light texture. 

In my current version of this. I do a few more things to to get soft shadows (generating triangles at the ends of line segments for the soft penumbra part of the shadow), so soft shadows are definitely possible with this method. 

As all the lights are drawn to a single screenspace texture before rendering, it would be possible to run AA on this, but it might require implementing it from scratch/reverse engineering one of Unity's render passes, which wouldn't be a minor task. 

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TJ Hooka2 years ago

Would be interested to check this out, have ODIN if it's still needed.

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LordMlekk2 years ago

Sure, Drop me an email at lordmlekk@gmail.com, and I can send you the current version. 

Be warned though, it's still experimental and in development, so I wouldn't really recommend it to non-coders at the moment.

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Mang_fatih4 years ago

I'm interested for source code. It looks much better than Unity 2D light. Care to share ?

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LordMlekk4 years ago (1 edit)

Hi. Unfortunately, the this plugin was designed using the ODIN inspector (an asset that extends the unity inspector and serializer. I'd highly recommend it, it's one of those "must have" assets), which I don't have the right to share the source code to. If you have that asset I'd be happy to share my code, or if you wait a bit they're developing a redistributable for situations like this, though there's no ETA on that. 

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