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

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Self-illumination

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.