# 3d-model-how-to-solve-fisheye-glass,-spherical-glass

> Resolve fisheye distortion in your 3D glass models by adjusting material properties and applying shell commands. Enhance design accuracy now.

- **URL**: https://www.coohom.com/helpcenter/3d-model-how-to-solve-fisheye-glass%2C-spherical-glass
- **Locale**: en_US
- **Updated**: 2026-06-10

## Content

Problem
=======

The uploaded model shows fisheye or spherical glass (usually due to single-sided glass)

Self-check
==========

Check if the model parts using glass material (whether the refract attribute is enabled in the material) are cubic (i.e., have length, width, and height properties)

![](//qhstatic-sg-s3.coohom.com/yuntai/image/jpeg/1762505534467/47999879BC99A5AB5EACAF3DACD62FCD.png)

Provide an hdri, render directly, observe the effect

![](//qhstatic-sg-s3.coohom.com/yuntai/image/jpeg/1762505534496/D5D49F3EA7029D97C088FA3F79FB19CC.png)

Solution
========

Apply a shell command to the model parts

![](//qhstatic-sg-s3.coohom.com/yuntai/image/jpeg/1762505534450/D138A59A7A7C068AC00E6A534DEF5F07.png)

Change the refractive index in the material properties to 1.0

![](//qhstatic-sg-s3.coohom.com/yuntai/image/jpeg/1762505534462/F24580C8AFAC55D41E99354B69657401.png)