Video mapping and live performance: behind the technical scenes in Saint-Omer

On May 19th, Jérémy, the artistic director of Dreamwall's Media Solutions department, took his expertise from the Marcinelle studios to the stage in Saint-Omer, France. The goal of this field intervention was to ensure precise alignment between digital visual creations and the physical structural elements of a live performance. Balancing technical rigor with artistic adjustments, here is a look back at a targeted collaboration dedicated to modern scenography.

Long-term partner support is a fundamental pillar of Dreamwall's approach. This renewed collaboration for a recent stage production illustrates the continuity of our commitment. The project in question takes the form of a total live show, a complex setup that brings together on a single stage:

• Professional actors and extras;
• Singing and dancing performances;
• Classic theatrical staging.

The visual distinctiveness of this production relies on the tight integration of tangible structures and virtual elements. The physical sets do not serve as mere passive backdrops. They are modified, animated, and contextualized in real time by large-scale video mapping projections, developed in advance by our graphic design teams.

It was during the final rehearsal phase in Saint-Omer that technical intervention became essential. The schedule required a quick, single-day trip to maximize working time on set. Upon arrival, synergy with local teams quickly fell into place alongside administrative and artistic run-throughs.

The mission of our artistic direction during this on-site phase was to verify that the graphic content produced within the Marcinelle studio adapted perfectly to the physical constraints of the stage. This step represents a critical tipping point. It is the precise moment where the theory established on monitoring screens meets the material reality of a theater stage. Every projection angle, light beam, and contrast setting must be validated under real operating conditions.

Technical variables to master on set

Integrating projected images onto a three-dimensional structure requires taking several environmental factors into account:

• Material reflectance: The surfaces of real sets absorb or reflect light unevenly.
• Light pollution: Stage lighting dedicated to the actors must not dilute the intensity of the video projections.
• Perspective lines: The positioning of video projectors requires geometric corrections to avoid any visual distortion for the audience.

While digital creation offers total graphic freedom, confronting a raw set systematically requires last-minute corrections. To guarantee visual coherence and maintain the optical illusion for the audience, our artistic director worked jointly with the show's technical team.

The methodology applied on-site is based on the masking process (or digital masking). This technique consists of redrawing the outlines of the projection zones directly from the theater's video control room. By adjusting these digital masks based on the precise reliefs, construction imperfections, and cast shadows of the real set, the operator calibrates the video feed to fit the physical structures down to the exact millimeter.

This high-precision work highlights the importance of the technical-artistic expertise essential in modern audiovisuals and the events sector. Here, software skills combine with a keen understanding of the scenic space.

This intervention in Saint-Omer demonstrates that Dreamwall's know-how applies beyond traditional broadcasting formats and Belgian borders. Whether designing a virtual studio in Marcinelle for the television sector or creating a video-projected environment on stage for a show in France, the combination of technical rigor and artistic clarity remains the company's working method.

The success of such a project relies on rigorous planning divided into several distinct phases:

• Advance analysis of technical stage plans and set structures.
• Creation of graphic content adapted to the specific resolutions of the projectors.
• On-site calibration and masking to conform the virtual to the real.

Are you currently developing an event, a theatrical production, or an immersive scenography combining real structures and video technologies? Dreamwall's artistic teams support you from the initial design phase to final on-field production. Contact our services to evaluate the parameters of your next project.