# render-how-to-fix-overly-strong-weak-material-texture

> Learn how to reduce graininess in renderings by adjusting bump scale, materials, light sources, and rendering settings. Start improving your designs now.

- **URL**: https://www.coohom.com/helpcenter/render-how-to-fix-overly-strong-weak-material-texture
- **Locale**: en_US
- **Updated**: 2026-06-11

## Content

Problem
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When adjusting the rendering effect, it was found that after adjusting the bump parameters, the graininess became too strong.

Solution
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1. Reduce bump scale: You can try further fine-tuning in material editing during real-time rendering, customizing the adjustment of the bump scale of the normal map.

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![](//qhstatic-sg-s3.coohom.com/yuntai/image/jpeg/1762134893640/8F3BDF68BFFEDA2569C8E146AD480476.png)

2. Adjust materials: Sometimes, the graininess may be related to the material itself. Try changing the material or adjusting other material properties, such as reflection glossiness or Reflection.

![](//qhstatic-sg-s3.coohom.com/yuntai/image/jpeg/1762134893531/3A64130960B7E4E7C452D6827CA04E17.png)  

3. Light source adjustment: Properly adjusting the number and position of light sources may affect the material's performance, alleviating graininess.  


4. Rendering settings: Check the rendering settings to ensure that there is no excessive sharpening or other post-processing affecting the material performance.

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