- Projection Calculator Software For Curved Screenshot
- Projection Calculator Software For Curved Screens Windows
- Projection Calculator Software For Curved Screensavers
- Diy Curved Projection Screen
- Curved Projection Screen Vs Flat
Warp and Blend are interfaces exposed in NVAPI for warping (image geometry corrections) and blending (intensity and black level adjustment) a single display output or multiple display outputs
Many display applications benefit from combining multiple projectors or displays into one larger display surface. If all the displays are aligned in a grid with no overlap, features like Mosaic make it easy to create a single unified display from multiple physical displays. When the displays are rotated at odd angles or the display surface is an irregular shape, multiple projectors need to overlap, blend together and be mapped or adjusted to the display surface. The Warp and Blend SDK provides an easy way to bring this functionality to any application with minimal performance impact and no incremental latency.
In the example above both warp and blend are used to achieve a seamless, blended picture from two projectors illuminating a curved screen. A standard practice when using multiple projectors is to overlap the seams where each projected image touches another. Since optics and screens are never perfect and overlapping can create hotspots (regions gets twice amount of light) blend is used to adjust the intensity of the overlapping region. Warp is used to modify geometry so that it matches the curve of the projection wall.
Traditionally, warp and blend operations are done with custom hardware using features built into the projector or with direct modifications to an application. The Warp and Blend SDK provides an easy way to bring this functionality to any application with minimal performance impact and no incremental latency.
Warp and Blend is part of NVAPI
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Pixelwix Projector Calculator is a must-have tool for designing single of multi-projector displays on all screen and room shapes.You will get a complete 3D simulation of how the finished image will look and will now even connect to your playback content using SPOUT or the provided player to send your content live through the virtual projectors (even when using warp and blend!).
NVAPI is NVIDIA's core software development kit that allows direct access to NVIDIA GPUs on windows platforms. Warp and blend is implemented as an interface in NVAPI that programmably exposes warping and intensity adjustment features before the final scanout. Working in conjunction with a supported NVIDIA Display Driver, the warp and blend features works on a single screen, multiple screens and multi-gpu configurations and are available only with NVIDIA Quadro GPUs.
Learn more about NVAPI.
Learn more about NVAPI.
Download Warp and Blend Sample
Download the Warp and Blend programming sample package to get started developing with warp and blend and NVAPI. To download, you must be a member of NVIDIA Developer - DesignWorks.
By clicking the 'Agree & Download' button below, you are confirming that you have read and agree to be bound by the SOFTWARE DEVELOPER KITS, SAMPLES AND TOOLS LICENSE AGREEMENT for use of the SDK package. The download will begin immediately after clicking on the 'Agree & Download' button below.
Join the NVIDIA Developer Program
Get access to the latest software releases and tools and receive notifications and invites to join special developer events, early access programs and educational webinars. The program is free-to-join and open to all developers.
Key Features
- Generate a seamless image on up to 16 displays or projectors with warp and blend using NVIDIA Mosaic Technologies and NVIDIA Quadro Sync (ability to synchronize up to four Quadro GPUs per system).
- Apply warping to any scenario that requires image geometry corrections such as rotation, skew, mirroring, offset, and geometry mapping.
- Adjust intensity and black level in portions of a screen, every pixel if desired.
- Minimal performance impact and no incremental latency.
- Works in single screen, multiple screens and multi-gpu configurations.
Operating System | Windows 7, 8, 10, Server 2008R2, Server 2012 |
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Dependencies | NVIDIA Quadro 1200 class or higher products with Fermi, Kepler, Maxwell or newer GPUs NVS 810 & 510 Windows Quadro Display drivers 302.82 or newer |
Why do Warp and Blend on the GPU?
Traditionally, warp and blend is integrated into the projector or done using custom hardware appliances which adds performance delay to the display pipeline. It can also be done using software applications but that may not conform to all use cases. Since the pixel information is already available to the GPU, the GPU is the natural place to do this work. GPUs also bring additional benefits to warp and blend:
- GPUs are inherently parallel for fast image processing operations
- Ability to perform transformation in the display pipeline before the pixel get scanned out
- Minimal performance delay to display pipeline compared to external boxes using FPGAs
- Cost effective and easily scalable
Warp and Blend In Action
Immersive VR using a domed screen
The Operational Based vision Assessment (OBVA) Simulator at NASA.
Image courtesy of NASA
Image courtesy of NASA
Projection mapping onto scale physical models
Projection Calculator Software For Curved Screenshot
A 1:5 scale, blank canvas model car with car’s features projected onto the surface of the model to replicate a photo-real, physical object for real-time interaction and customization.
Image courtesy of Christie Digital
Image courtesy of Christie Digital
Simulator environment with large curved front displays
The PanoLab is a wide-area high realistic projection system for interactive presentations of virtual environments. The half-spherical screen of PanoLab allows the simulation of large visual fields providing an increased degree of immersion. The PanoLab was calibrated using nWarp, part of the ProjectionTools automatic calibration system from domeprojections.com
Image courtesy of Joachim Tesch. Max Planck Institute for Biological Cybernetics.
Image courtesy of Joachim Tesch. Max Planck Institute for Biological Cybernetics.
Multi-projection display walls
Using a matrix of projections projected to a single screen to present a seamless large scale, single image.
Developer Forums
Our forum community is where Developers can ask questions, share experiences and participate in discussions with NVIDIA and other experts in the field.
Check out the forums here.
Check out the forums here.
Resources
Warp and Blend Presentations
S3114 - Using Warp and Blend API in Distributed and Single Renderer's
Update on Warping Standards
Video
Update on Warping Standards
Video
S2322 - Warping and Blending for Multi-Display Systems
Video Presentation
Video Presentation
S4452 - Mid-Tier VR: Cost Reducing the Cave by Embracing the GPU
Video Presentation
Video Presentation
SIG4113 - See the Big Picture: Scalable Visualization Solutions for High Resolution Displays
Video Presentation
Video Presentation
Additional Resources
- NVAPI Software Development Kit (Windows only)
- NVAPI Documentation (PDF)
The ability to manage arrayed projectors to display virtually any image, anywhere is made easier with Christie® Twist®. Twist gives you software options for warping and blending on all Christie 3DLP projectors and most Christie HS Series 1DLP laser projectors, allowing pixels to be mapped more easily onto any projection surface, maintaining proper geometry and accurate pixel-to-pixel alignment. The technology also provides networked projector control by allowing you to launch a virtual remote from within the Twist software with all the functionality of standard infrared remotes.
Christie Twist software is a free download. Christie Twist Premium and Twist Pro are paid upgrades and provide additional functionality for more complex projects.
Click the images to view a full size image of the Christie Twist software.
Projection Calculator Software For Curved Screens Windows
Custom Blend | Custom Point |
Christie Twist family overview
The Christie Twist product family includes three tiers of specialized software with each version tailored to specific needs: from simple flat screen multi-projector warps and blends to highly multifaceted applications. No matter what the surface, Christie has the right Twist solution for the project. Christie Twist and Christie Twist Premium are ideal for live theater and events, projection mapping, tradeshows, large classrooms, corporate boardrooms, museums, houses of worship, casinos and entertainments facilities, and more. For more intricate projects – including virtual caves and domes - Christie Twist Pro delivers unlimited arbitrary placement points for greater accuracy. Key features of the Christie Twist family:
Projection Calculator Software For Curved Screensavers
Feature | Christie Twist | Christie Twist Premium | Christie Twist Pro |
---|---|---|---|
Manage arrayed projectors | 6 | 16 | Unlimited |
Control points | Up to 81 grid control points | Up to 87 grid control points, including 6 arbitrary points | Up to 1,500 arbitrary or grid control points |
Brightness uniformity | No | Yes | Yes |
Auto blending on flat or slightly curved projector arrays (Wallpaper) | No | Yes | Yes |
Auto blending on complex curved screens or domes (Field of View) | No | No | Yes |
Arbitrary point placement | No | Maximum 6 | Yes - Unlimited |
Diy Curved Projection Screen
Read the Twist FAQ to learn more.