A system of properly displaying chroma key content is presented. The system obtains a digital representation of a 3D environment, for example a digital photo, and gathers data from that digital representation. The system renders the digital representation in an environmental model and displays that digital representation upon an output device. Depending upon the context, content anchors of the environmental model are selected which will be altered by suitable chroma key content. The chroma key content takes into consideration the position and orientation of the chroma key content relative to the content anchor and relative to the point of view that the environmental model is displayed from in order to accurately display chroma key content in a realistic manner.