GLSL Integration to Unity

— A project I developed when I was doing an internship at NAXS.corp. (05/2021)

/ Requirements /

This project is mainly about integrating a 3D GLSL shader into Unity3D.
And I was required to use the shader “Sculpture III" created by Inigo Quilez as the target model to experiment with.

/ Development Process /

STEP 1. I transferred the GLSL code to a URP shader written with HLSL.

STEP 2. I rewrote the raymarching part of the shader to make it enable to interact with the camera system in Unity.
Therefore, we can see the shader perform in 3D shape in Unity.

STEP 3. I put the shader material onto a transparent cube and connected the Rotate, Transform, and Scaling parameters of the cube with the shader material, so that I could transform, rotate, and scale the 3D shader by controlling the cube. In a nutshell, I wrapped the 3D creature into a box, and then I moved, rotated, and scaled the 3D creature through moving, rotating, and scaling the box.

STEP 4. I tried to fix the lighting part of the shader, so that the shader can be influenced by the main light direction and light color in Unity.

Finally, after I successfully integrated the GLSL shader into Unity as a URP shader, and make it act like a 3D model (but it actually doesn’t have any mesh), I started to play with the shader in Unity and extended it to different kinds of forms and motion.

/ Extended Version 1_1, 1_2 /

/ Extended Version 2_1, 2_2, 2_3 /

/ Extended Version 3_1 /

/ Extended Version 3_2 /