Behind the Scenes of 'Dongji Rescue' Sea Rescue: Previz Boosts Film Efficiency

For films like Dongji Rescue, which include scenes in special environments, the value of Previz is particularly apparent. Whether dealing with the unpredictability of natural conditions or optimizing the logic of interactions between multiple characters, Previz allows the team to plan ahead—without depending on the real shooting environment. This makes it possible to verify the feasibility of creative ideas in virtual space and provides reference points for subsequent shooting.

How to Control Complex Scenes in Advance?

From "passively waiting" to "actively planning": How does technology solve industry-wide pain points?

In traditional shooting, complex scenes often face the dilemma of "high cost, low efficiency": equipment scheduling takes too long, natural conditions are uncontrollable, trial shots don’t meet expectations and need constant adjustment... These issues were addressed in Dongji Rescue's shooting preparation, as Beijing Yangyanghao Film Company adopted CHINGMU's full-process virtual Previz technology to provide targeted solutions:

No dependence on actual shooting environments: Using the optical motion capture system to capture the performers’ actions and positions, combined with virtual scene construction, the team could preview the visual effects in advance, reducing reliance on actual shooting locations and weather conditions.

Rapid creative verification: With the virtual camera CMVCS's "what you see is what you get" feature, the creative team can instantly view preview footage with lighting and scene textures close to those of the final film, making quick adjustments to camera angles and scene atmosphere, avoiding rework in post-production.

Control of cost and time: By using motion capture for the actors and pairing them with virtual scenes, Previz can be completed without having to set up physical scenes or coordinate the main cast, significantly reducing costs and time during the preparation stage.

CHINGMU | Virtual Camera CMVCS:

What You See Is What You Get, Giving Creators More Freedom

As a new product from CHINGMU, the virtual camera CMVCS demonstrated its core advantages during Dongji Rescue’s Previz process: real-time rendering technology makes the preview footage’s lighting and scene textures closer to the final shot, helping the creative team more accurately predict the final results.

Additionally, it can fully record motion data, camera trajectories, and other information from the Previz process, allowing the team to review and make adjustments. This "technology serving creativity" feature significantly improved the efficiency of preparing some of Dongji Rescue's complex scenes and provides a reference path for similar films.

The Significance of Technology: Making Great Stories More Efficient

From Previz of parts of Dongji Rescue to other film projects with complex elements, CHINGMU’s Previz technology focuses on one core goal: visual planning that allows creators to focus on "how to tell a great story," rather than "how to solve technical difficulties."

Good film technology is never about covering all aspects of creation but providing precise support at key moments. As in Dongji Rescue, the value of Previz technology lies not in replacing the actual shoot but in providing a more efficient and controllable way to realize complex scenes that are hard to manage.