> 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/common-pop-up-windows/why-prompt-self-illumination-in-the-scene-has-reached-its-limit.md).

# Why prompt 'Self-illumination in the scene has reached its limit'?

Key words: Common Pop-Up Windows | Self-illumination

<figure><img src="https://3611830798-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MjbN1iGmN_HBnj_fyU9%2Fuploads%2FvKs2vH45D8Qebdbg8yyl%2Fimage.png?alt=media&amp;token=ace554af-2601-4146-af82-25a9a6a6477c" alt=""><figcaption><p>Self-illumination</p></figcaption></figure>

Self-illumination in D5 scene has its upper limit; the current number of self-illumination in D5 scene is judged by the number of vertices of self-illumination model, and the upper limit is 134217727.

If it is close to or exceeds this upper limit, it is recommended to optimize and reduce the surface of the self-luminous model.