Koala FX has revealed how its visual effects team created the towering mountain environments in Fall 2: Deadpoint, delivering more than 400 VFX shots that transform practical climbing sequences into a terrifying journey above the clouds.
For a survival thriller built around extreme heights, the environment is more than a backdrop. Every cliff edge, narrow walkway and distant mountain contributes to the audience’s sense of danger.
That was the challenge facing London-based visual effects studio Koala FX on Fall 2: Deadpoint. In a newly released VFX breakdown, the studio reveals how it built and extended the film’s fictional Mount Kwan, creating a continuous digital environment that supports the story’s most suspenseful climbing sequences.
According to CG Channel’s report, Koala FX delivered more than 400 VFX shots for the film. The work included a fully realised CG mountain, digital set extensions and complex compositing across changing weather and lighting conditions.
Building a Mountain That Feels Real
The story takes place around Mount Kwan in Thailand, where a dangerous elevated plank walk leaves climbers exposed to enormous drops. Although the mountain is fictional, the setting draws inspiration from the real Huashan Plank Walk in China.
Rather than relying entirely on practical locations and physical sets, Koala FX built Mount Kwan as a 3D asset. This gave the team greater control over the surrounding landscape, the scale of the cliffs and the views extending far beyond the actors.
The mountain became a central visual element across the production. Koala FX was responsible for fully realising the environment and compositing every shot in which the mountain appears.
This approach allowed the filmmakers to combine practical photography with extensive digital scenery while maintaining the impression that the characters were moving through one enormous, connected location.
Combining CG Environments and 2.5D Set Extensions
One of the main techniques used in the project was the combination of full 3D environments, digital matte painting and 2.5D set extensions.
A practical set can provide convincing surfaces for actors to climb, walk across or hold on to. However, it cannot always reproduce the vast cliffs, distant valleys and seemingly endless drops required for a film of this kind.
CG set extensions help bridge that gap.
By extending the photographed environment digitally, artists can preserve the practical performance while creating a much larger world around it. Two-and-a-half-dimensional techniques can also provide efficient ways to extend selected views using layered imagery and carefully constructed depth.
For Fall 2: Deadpoint, these methods helped transform the physical climbing locations into dramatic mountain landscapes. Rock faces extend beyond the practical structures, while distant mountains and valleys reinforce the impression of height and exposure.
The key is integration. The digital environment must appear to belong to the photographed scene, with convincing perspective, atmospheric depth, texture and lighting.
The Devil’s Elbow: A Fully CG Establishing Shot
One of the project’s most demanding sequences was the Devil’s Elbow establishing shot.
Unlike a conventional set extension, this was a fully computer-generated shot designed to introduce the mountain location and establish the danger surrounding the characters.
An establishing shot carries an important storytelling responsibility. It tells viewers where the action takes place, communicates the scale of the surroundings and prepares them emotionally for what follows.
For a sequence built around vertigo, simply showing a tall mountain is not enough. Composition, camera placement, the visible drop and the relationship between the walkway and the surrounding landscape all contribute to the effect.
The environment must make the characters appear vulnerable without losing visual credibility.
This is where CG environment work becomes part of the filmmaking language rather than merely a technical solution. The digital landscape helps control how the audience experiences the location and anticipates the danger ahead.
Matching Changing Weather and Lighting
Creating a convincing digital mountain is only one part of the challenge. The environment must also remain believable as the weather and lighting change throughout the film.
Koala FX faced particular difficulties during the rain sequence. The exterior footage was captured at different times of day, which meant the practical lighting varied between shots.
That created a continuity problem for the CG environment.
If the sky suggests one lighting condition while the digital mountain reflects another, the composite can feel artificial. Differences in brightness, shadow direction, atmospheric contrast and colour can make an otherwise detailed environment stand out from the live-action footage.
The team therefore had to balance the digital mountain with the lighting information visible in each plate, ensuring that the environment remained consistent with the photographed sky and the surrounding scene.
This type of work demonstrates why high-quality environment VFX requires more than detailed modelling. Artists must understand how light interacts with the landscape and how visual continuity holds together across an edited sequence.
The finished result needs to feel like a single location, even when individual shots were captured under different conditions.
Making the Audience Feel the Height
The ultimate objective was not simply to create an impressive mountain. It was to make viewers feel the characters’ exposure to danger.
VFX supervisor Menelaos Pampoukidis explained the philosophy behind the work in the studio’s breakdown:
“The goal was never just to build a mountain; it was to make people scared of heights.”
That distinction is important. A technically detailed environment can still fail to create tension if the scale, camera perspective and relationship between the characters and the landscape do not work together.
For a climbing thriller, the audience needs to understand how far the characters are above the ground, how little support they have and how dangerous even a small movement could be.
Digital environments give filmmakers additional control over those visual relationships. They can extend a cliff, reveal a distant valley or create a wider view that emphasises the characters’ isolation.
When the work is successful, viewers concentrate on the danger rather than noticing where the practical photography ends and the CG environment begins.
What This Project Demonstrates About Modern VFX
Koala FX’s work on Fall 2: Deadpoint highlights the continuing importance of environment creation and compositing in live-action filmmaking.
The project combines several core VFX disciplines:
- 3D environment creation: Building a digital mountain that can support multiple shots and camera angles.
- Digital matte painting: Extending the visible landscape with detailed environmental imagery.
- 2.5D set extensions: Expanding practical locations into larger, more dramatic environments.
- Compositing: Integrating digital scenery with live-action plates.
- Lighting continuity: Matching CG environments to changing skies, weather and photographed lighting.
- Visual storytelling: Using scale, perspective and composition to heighten suspense.
These techniques are especially useful when a production needs environments that would be difficult, dangerous or impractical to capture in their entirety on location.
The project also illustrates an important principle for VFX artists: the most effective visual effects are not always the most noticeable. Their success is measured by how convincingly they support the story and the emotions the filmmakers want to create.
Watch the VFX Breakdown
The newly released breakdown provides a closer look at how Koala FX created the mountain environments and extended the film’s practical climbing sequences.
Watch the video and explore the before-and-after comparisons to see how the team transformed the photographed locations into the towering landscapes seen on screen.
Sources and Further Viewing
- Koala FX — official studio website
- CG Channel — Koala FX’s VFX breakdown for Fall 2
- Televisual — VFX breakdown: Koala FX for Fall 2: Deadpoint
- The Art of VFX — Fall 2: Deadpoint, Vertiginous Heights with Koala FX
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