# Add a Smooth 3D Gradient Depth Effect (https://academy.spline.design/tutorials/add-a-smooth-3d-gradient-depth-effect)

> A video tutorial from the Spline Academy.

- Product: Spline 3D
- Level: beginner
- Duration: 6 min 30 s
- Published: 2022-04-20
- Video: https://www.youtube.com/watch?v=LY8HvCBvlJo
- Part of: [Materials & Shading That Look Good](https://academy.spline.design/collections/materials-shading-that-look-good.md)

## About this tutorial

In this quick tutorial, you will learn how to achieve a smooth 3D gradient + depth extrusion effect with Spline.

## Chapters

- [0:00](https://www.youtube.com/watch?v=LY8HvCBvlJo&t=0s) Introduction
- [0:30](https://www.youtube.com/watch?v=LY8HvCBvlJo&t=30s) Extruding the numbers on a plane
- [2:05](https://www.youtube.com/watch?v=LY8HvCBvlJo&t=125s) Creating the material
- [3:44](https://www.youtube.com/watch?v=LY8HvCBvlJo&t=224s) Adding more color and details

## Related documentation

- [3D Modeling Tools](https://docs.spline.design/designing-in-3-d/3d-modeling-tools)
- [Depth Layer / 3D Gradient](https://docs.spline.design/materials-shading/depth-layer-3d-gradient)