> For the complete documentation index, see [llms.txt](https://docs.d5render.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.d5render.com/user-guide/render/why-there-are-white-grids-when-outputting-specific-resolution-images-but-the-preview-is-normal.md). # Why there are white grids when outputting specific resolution images, but the preview is normal? If you have **semi-transparent curtains/custom blinds** in your scene, some of the scenes may have white grids in the ↓ image when outputting at certain resolutions (the preview is normal). This is a known issue with the current version and can be fixed by adjusting the material of the curtain/blinds model to 100% opacity (adjusting the material to a transparent material template & opacity parameter to 100%), then you can get the normal output effect. We will fix it in subsequent releases.