What is XR Video Production
William Wong
General Manager of Sales, Visionpi LED | The Leading LED Solution Provider for Live Events | DOOH | Retail | Education | Transportation | Virtual Production| Creative LED Walls
The film and TV industry is undergoing a revolutionary shift from traditional green-screen approaches to the innovative employment of virtual production with LED panels. This transformation enables the creation of immersive sets and dynamic backgrounds directly on the set, providing unprecedented flexibility for last-minute alterations. Actors gain from performing in a more realistic and captivating environment, potentially enhancing their performance levels. Embrace the future of filmmaking through LED technology and leave behind the limitations of green screens. XR virtual production promotes modern content development and offers several advantages to filmmakers and producers, including enhanced productivity. Virtual Production, which builds immersive video environments for broadcasting and filmmaking, allows content creators to respond to and manipulate digital elements in real-time during live production, not only reducing the cost of on-location shoots and post-production time but also enhancing the performance of the individuals involved. The popularity of Disney's The Mandalorian series, along with the impact of the covid-19 metrics for both cinema and live events, have driven virtual production technology further in recent years. XR is rapidly becoming the preferred virtual production method.
Extended Reality (XR) encompasses virtual reality (VR), augmented reality (AR), and mixed reality (MR), fusing digital content with the physical world.
An XR LED wall is a large, curved or flat panel made up of LED screens that showcase high-resolution digital images or videos. It serves as a dynamic backdrop for filming, being capable of presenting detailed virtual environments or altering scenes in real time.
How XR LED Display Works
Content Creation: Artists and designers use 3D modeling software to create digital environments before filming, which are imported into a game engine for real-time rendering and interaction.
Real-Time Interaction: The game engine connects to the xR LED wall to display the virtual environment as the background. It adjusts scenery in real time based on camera movements to maintain perspective.
Immersive for Actors: Unlike green screens, xR LED walls provide a tangible environment for actors to see and react to, enhancing natural performances.
Camera Tracking: Advanced systems synchronize camera movements with the wall's imagery to ensure natural perspective shifts.
Lighting and Reflections: The wall's light illuminates actors and sets, enhancing realism and reducing post-production needs.
Advantages of XR LED wall solution
The xR LED wall overcomes the typical difficulties related to green screens, like color spill that can impact the quality of the interaction between actors and their environment. The LED display offers realistic reflections and interactive lighting that enhances on-screen performances, and also simplifies the post-production process by eliminating the need for chroma keying.
The xR LED wall provides cinematographers with precise control over lighting, enabling them to create the ideal illuminated environment. This leads to accurate highlights, shadows, and reflections on actors, enhancing the credibility of the digital environment. The outcome is a seamless combination of practical and virtual elements, offering a rich, naturalistic lighting setup that raises the visual narrative.
Through transferring a lot of visual effects (VFX) responsibilities from post to pre-production, the xR LED wall simplifies the filmmaking process. Scenes can be visualized and effects implemented in real time, minimizing the need for extensive post-production adjustments. Moreover, the assets created are flexible, facilitating their use from the initial previsualization to the final output, resulting in a more efficient workflow that can considerably lower production costs.
Why XR Stage LED Wall?
Virtual Production in Filming
Virtual production alters the way filmmakers operate, as the physical and digital worlds come together in real-time on the set. Incorporating an LED ceiling or floor can further boost the dynamic digital environment and make it more immersive, while providing a stable light source for the set.
Virtual Production in Studio
Virtual Production and VR/AR Technology are transforming the manner in which TV studios and event organizers present content. Hybrid event platforms are being created to engage audiences in novel and thrilling ways, substituting traditional green screens to construct immersive video surroundings.
Virtual Production in Live Entertainment
With Virtual Production services, live event broadcasting can be controlled by anybody, anywhere via on-set operations and live tracking, broadening the reach of the event. Driven by Amazon Web Services, our on-demand service is capable of delivering live events to a global audience on diverse platforms.
The Technical Requirements for XR LED Displays
The technical requirements for LED displays in XR virtual studios require more precision than standard displays, customized to handle the challenges of on-camera performance. XR LED displays are essential to virtual productions, needing advanced specifications like high frame rates, accurate color fidelity, minimal latency, and synchronization to smoothly integrate virtual environments with live-action footage. Key technologies like HDR, color restoration, and high grayscale levels ensure the displays can meet the strict demands of professional camera shooting, ensuring immersive and life-like scenes. Below are the key technical specifications and features essential for LED displays in XR virtual studios:
1. Color Restoration and Accuracy: – In color gamut restoration, high fidelity and pure color channel spectrum restoration is achieved to match the standard color spaces throughout the production process. DCI P3 99%-100% fulfills the Hollywood filming standard.
2. High Refresh Rate– Support fo high refresh rate >7680hz and high frame rates to avoid motion blur and tearing during fast-paced scenes, with modern requirements reaching up to 240Hz or higher. LED Display Scan mode less than 1/8.
3. High Dynamic Contrast – A wide dynamic range from the brightest to the darkest areas to capture detailed image nuances in the camera, which is essential for the HDR (High Dynamic Range) functionality.
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4. Moiré Pattern Reduction – Strategies to minimize moiré effects by means of mask design optimization, adjustments in LED light emission design, and modifications to the camera's focal length, depth of field, and viewing angle.
5. Content Bit Depth and Sampling – Bit depth options of 16/18/22 bits and a sampling rate of RGB 4:4:4/4:2:2 to guarantee high-quality image reproduction.
6. HDR Compatibility – Support for HDR processing, including PQ or Disguise for server graphics card HDR, to enhance the on-screen image realism.
7. High Brightness – The XR Virtual Reality LED display, with an outstanding brightness of 1500 nits, guarantees seamless integration of virtual backgrounds in any environment, be it in the studio or outdoors, overcoming the challenges presented by natural lighting conditions.
8. Frame Rate Compatibility – Support for a broad range of frame rates (24/25/48/50/60/72/96/100/120/144/240Hz etc.) to meet various filming requirements.
The Control System Requirements for XR LED Displays
NovaStar’s xR solution is specifically tailored for camera shooting scenarios and can effectively address issues such as black fields and scan lines. This solution incorporates industry-leading image enhancement technology, aiding users in creating shooting scenes that are more comparable to real environments. This solution is powered by NovaStar’s entirely new LED control platform VMP, which integrates design, monitoring, and management, offering users the ultimate control experience.
Key Features:
Frame Multiplexing: Supports frame multiplexing, enabling users to reframe multiple video feeds within the same time field. By making use of the camera’s genlock phase offset, it becomes feasible to output multiple effects simultaneously within a single shooting scene, enhancing work efficiency and reducing cost.
Shutter Fit: Supports the synchronization of the LED display refresh rate and the camera shutter parameters, enabling the LED display to automatically adapt to the camera exposure time and frequency, reducing scan lines.
HFR: Supports high frame rates up to 120Hz, 144Hz, or even 240Hz. This enables smooth presentation of video with high-speed moving objects.
Color Curve + 3D LUT: Curve adjustment and the importing of 3D LUT files allow you to manage color in creative and artistic manners, just like a Hollywood colorist.
14CH Color Correction: Precise adjustment of the hue, saturation, and brightness of primary, secondary, and tertiary colors, along with basic adjustment of black and white, ensuring perfect colors that retain their intended beauty.
Scenario Presets: Different display requirements are necessary to meet the needs of different shooting scenarios. Presets allow users to save settings in advance, including brightness, color temperature, gamma, and more, all retrievable with a single button press. applications.
Contrast + Black Level: Allows for independent adjustment of highlights and shadows through contrast and black level, avoiding overexposure in bright content while delivering rich details in dark content.
Color Replacement: Supports unrestricted color replacement, with minimal impact on other colors.
Dual Image Booster: The all-new MX series solution is furnished with Image Booster 2.0 and Dynamic Booster technologies, which can enhance the performance of grayscale, color, and the contrast ratio, creating an immersive view to meet the requirements essential for xR.
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