# A Spatial Target Function for Metropolis Photon Tracing

> Research article (ACM Transactions on Graphics, 2017) · cited 18× · AI/ML

**Wikidata**: [openalex:W2555210174](https://www.wikidata.org/wiki/openalex:W2555210174)  
**Source**: https://4ort.xyz/entity/a-spatial-target-function-for-metropolis-photon-tracing