Unity-Custom-Mipmap

A set of scripts and shaders in Unity that can render a texture using a custom mipmap level.

Technologies

• Unity
• HLSL
• C#

Getting Started

Prerequisites

• Unity 2020.3.30f1
• Universal RP 10.8.1

Installation

Clone the repo.

git clone https://github.com/ruthvikkonda/Unity-Custom-Mipmap.git

Usage

1. Open the Cube_Mipmap scene.

2. To adjust the mipmap level in the editor, click on the cube, expand the shader properties, and change the Mip Level value.

3. To adjust the mipmap level at runtime, open the SetMipLevel.cs script and change the float value to your desired level.

Integrating into Your Project

1. Change active render pipeline to Universal Render Pipeline (URP).

   • https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@10.8/manual/InstallURPIntoAProject.html

2. If your materials are pink, upgrade shaders/materials accordingly.

   • https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@10.8/manual/upgrading-your-shaders.html

3. From the Assets/Scripts folder, copy over SetMipLevel.cs..

4. From the Assets/Shaders folder, copy over MipLit.shader, MipLitInput.hlsl, and MipSurfaceInput.hlsl.

5. For your desired GameObject, navigate to its material and change its shader to MipLit.

6. Attach your desired texture to the Albedo property.

 

You can now change the mipmap level in the editor or at runtime.

7. To adjust it in the editor, change the Mip Level value at the top of the shader properties.

8. To adjust it at runtime, open the SetMipLevel.cs script and change the float value to your desired level.

Contact

• Ruthvik Konda - ruthvikkkonda@gmail.com

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• Unity’s Default URP Lit Shader