https://github.com/etopuz/shadernotes
Shaders created in unity for learning and experimenting purposes
https://github.com/etopuz/shadernotes
cg distortion-effects lambertian-shading phong-lighting shader shader-development shader-programming shaderlab shaders stencil-shaders unity unity-3d unity-shader unity-shaders unity-tutorial unity2d unity3d unity3d-script unityshader
Last synced: 4 months ago
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Shaders created in unity for learning and experimenting purposes
- Host: GitHub
- URL: https://github.com/etopuz/shadernotes
- Owner: etopuz
- Created: 2024-06-21T12:20:03.000Z (almost 2 years ago)
- Default Branch: main
- Last Pushed: 2025-01-10T13:06:18.000Z (over 1 year ago)
- Last Synced: 2025-01-31T03:55:57.583Z (over 1 year ago)
- Topics: cg, distortion-effects, lambertian-shading, phong-lighting, shader, shader-development, shader-programming, shaderlab, shaders, stencil-shaders, unity, unity-3d, unity-shader, unity-shaders, unity-tutorial, unity2d, unity3d, unity3d-script, unityshader
- Language: C#
- Homepage:
- Size: 74.4 MB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
## Shaders And CG Notes On Unity
Experiments and notes based on different sources. This page shows the effects and key points of shaders created. Also for each experiment, there is a link to see full codes. Shaders are created in [cg](https://developer.download.nvidia.com/cg/Cg_language.html) for now.
## Sources
- [The Unity Shaders Bible](https://www.jettelly.com/store/books/the-unity-shaders-bible/)
- [Freya Holmér's Shader Video Series](https://www.youtube.com/watch?v=kfM-yu0iQBk&list=PLImQaTpSAdsCnJon-Eir92SZMl7tPBS4Z)
- [Minions Art's Shader Tutorials](https://www.patreon.com/minionsart)
## Assets
- [FREE Animated Isometric Prototyping Hero by Engvee](https://engvee.itch.io/animated-isometric-prototyping-hero)
- [Kenney's Prototype Textures](https://www.kenney.nl/assets/prototype-textures)
- [Lava Lamp Model by lauren.obj](https://sketchfab.com/3d-models/lava-lamp-482f9944e47d4084990605c356684407)
Many thanks to the creators of these valuable sources.
## Experiments
### Experiment_002 Stencil Shader
[See Full Stencil Shader Codes](Assets/Experiments/Experiment2_Stencil/Code/Shaders)
### Experiment_003 Kaleidoscope Effect
[See Full Kaleidoscope Effect Shader Codes](Assets/Experiments/Experiment3_Kaleidoscope/Code/Shaders/Kaleidoscope.shader)
**Note**: Unity_Rotate_Degrees_float is a function written by Unity included in Shader Graph. The function rotates the value of input UV around a reference point defined by the input Center by the amount of input rotation. [See in Shader Graph Manual](https://docs.unity3d.com/Packages/com.unity.shadergraph@7.1/manual/Rotate-Node.html)
### Experiment_004 Zoom Effect
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[See Full Zoom Effect Shader Codes](Assets/Experiments/Experiment4_Zoom/Code/Shaders/ZoomShader.shader)
### Experiment_005 Health Bar
#### Experiment_005.1 Simple Health Bar
#### Experiment_005.2 Fancy Health Bar
[See Full Healthbar Shader Codes](Assets/Experiments/Experiment5_HealthBar/Code/Shaders)
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**Note**: My implementation for roundness and border is overcomplex. It can be easily made with SDF. Please watch [this part from Freya Holmér's Shader Video](https://youtu.be/mL8U8tIiRRg?t=4737) if you'd like to see a clean implementation.
### Experiment_006 Sprite Outline Effect
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[See Full Sprite Outline Shader Codes](Assets/Experiments/Experiment6_SpriteOutline/Code/Shaders/SpriteOutlineShader.shader)
### Experiment_007 Lighting
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[See Full Lighting codes](Assets/Experiments/Experiment7_Lighting/Code/Shaders)
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**Note 1**: _LightColor0, _WorldSpaceLightPos0 and _WorldSpaceCameraPos are built-in shader variables in Unity. See document [here](https://docs.unity3d.com/Manual/SL-UnityShaderVariables.html).
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**Note 2**: reflect is a cg function that returns the reflection vector given an incidence vector i and a normal vector n. See document [here](https://developer.download.nvidia.com/cg/reflect.html).
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**Note 3**: We used Tags{"LightMode" = "ForwardBase"} in code because we want to use Forward rendering. This rendering target is the default in Unity. See document [here](https://docs.unity3d.com/560/Documentation/Manual/SL-PassTags.html).
### Experiment_008 Fresnel Effect
[See Full Fresnel Effect Shader Codes](Assets/Experiments/Experiment8_Fresnel/Code/Shaders/Fresnel.shader)
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**Note**: This effect only works properly on rounded objects due to its nature. It is a popular technique used in many games.
### Experiment_009 Gradient Effect
[See Full Gradient Effect Shader Codes](https://github.com/etopuz/ShaderNotes/blob/main/Assets/Experiments/Experiment9_Gradient/Code/Shaders/VertexGradient.shader)
### Experiment_010 UV Distortion Effect
[See Full UV Distortion Effect Shader Codes](https://github.com/etopuz/ShaderNotes/blob/main/Assets/Experiments/Experiment10_UV_Distortion/Code/Shaders/UV_Distortion.shader)
### Experiment_011 Raymarching
Here is good resources that I used to learn this technique:
- [Michael Walczyk's Blog](https://michaelwalczyk.com/blog-ray-marching.html)
- [kishimisu's Video](https://www.youtube.com/watch?v=khblXafu7iA)
- [Sum and Product's Video](https://www.youtube.com/watch?v=hX3mazz8txo)
**Note**: Since shaders are a bit larger than other examples I didn't add them here. Please take a look at them link down below.
[See Raymarching Codes](https://github.com/etopuz/ShaderNotes/tree/main/Assets/Experiments/Experiment11_RayMarching/Code/Shaders)