What is 3D projection mapping?
Projection mapping aligns images and video to physical surfaces. The content can follow a building, sculpture, scenic object or room rather than a conventional rectangular screen. The surface geometry, projector placement, content and calibration work together to create the effect.
Do I need a stereoscopic 3D projector?
Projection mapping does not inherently require stereoscopic playback or glasses. The word 3D often describes the physical surface or the illusion created by the content. If the show also uses stereoscopic video, verify the playback format, projector support, synchronization and glasses as a separate system requirement.
Which projector should I choose for a small mapping project?
For one wall or object, start with image size, available distance and ambient light. The BenQ LK936ST provides an integrated short-throw lens with optical lens shift. The LK935 offers a different placement option. These can be useful when a complex interchangeable-lens installation is unnecessary, with external software handling the mapped content.
When should I choose an interchangeable-lens projector?
Choose one when the projector must work from a specific mounting point, when the image needs an unusually short or long throw, or when a venue may change layouts. Epson PU/PQ, Optoma ZK1000/ZK1320 and Vivitek DK10000Z bodies offer lens options. The body and exact lens must be specified together, and the lens may be sold separately.
How do I calculate the lens throw ratio?
Divide the lens-to-surface projection distance by the image width, using the same units. A 12-foot-wide image from roughly 8 feet suggests a ratio near 0.67:1. Use that as an initial lens search, then check the manufacturer's exact distance, offset, image-size and lens-shift charts. Mirror-based UST lenses need particular attention to the measurement reference point.
Can the same Epson lens have different throw ratios?
Yes. For example, ELPLU03S is approximately 0.65–0.78:1 on EB-PU1008 at 16:10 and 0.46–0.56:1 on EB-PQ2008 at 16:9. Lens compatibility and throw ratio depend on the body and image format. Use the model-specific table below instead of transferring a generic lens specification between projectors.
How many lumens do I need for projection mapping?
There is no single correct number. Required output depends on the illuminated area, surface response, ambient light, lens, image overlap and desired brightness. Calibration and operating mode also change delivered light. Compare brightness specifications using their stated measurement standard and evaluate representative content at the intended image size.
Do I need 4K for projection mapping?
4K output can help with fine text, detailed graphics and close viewing, but the installation must preserve that detail through the lens, focus, content and geometry adjustments. WUXGA can be appropriate for larger patterns and atmospheric scenes. Epson PU models with 4K Enhancement and PQ models with 4K Crystal Motion should not be described as identical resolution systems.
What is the difference between warping, masking and edge blending?
Warping changes image geometry so content fits the target. Masking defines where content appears and where it is withheld. Edge blending adjusts overlapping images to reduce visible seams. These functions may be handled by the projector, external software or a media server; check the exact workflow for the selected model.
Can I use more than one projector?
Yes. Multiple projectors can cover a wider or more complex canvas, but they need planned overlap, matched color and brightness, stable mounts and coordinated playback. Optoma ZU920TST documents an integrated warping and blending workflow. Epson offers multi-projection tools and optional camera-assisted functions on selected models. Confirm all required software, cameras and output hardware.
Which paint should I use for blended projection walls?
EDGE is a starting candidate for multi-projector walls. Paint On Screen describes it as a light-grey, low-gain coating intended for blending applications. It provides a receiving surface; alignment, image processing and calibration still create the electronic blend. Test overlap regions and dark scenes from the audience area before coating the entire room.
Which paint should I use for a single wall or object?
Radiant White is a starting candidate for a controlled-light surface. Consider the substrate, viewing positions, projector incidence angle and finish. S1 Ultimate Contrast and 3D4K are conditional alternatives for feature surfaces. Their higher listed gain does not make them automatic upgrades for every object or immersive room.
Should every UST lens be paired with UST-ALR paint?
No. Ultra-short-throw describes the projection geometry, while the coating must also suit the audience and lighting. A blended immersive wall may still call for EDGE. Evaluate UST-ALR for the exact projector angles and finish, and test a sample before specifying it across a large surface.
Can I use mapping outdoors or in daylight?
Outdoor mapping needs a suitable surface, practical light levels and an installation designed for the environment. Darkness or controlled lighting can make a major difference to contrast. Exterior paint does not protect a projector from weather. Verify equipment operating limits, environmental protection and the actual site conditions before choosing a system.
How much paint should I order?
Measure the net area of each surface and calculate each coating separately. Use the finished-system coverage for the exact SKU, container size, formulation and application method. Surface porosity and extra coats can change yield. Do not count a shared wall twice or assume every product's quoted coverage refers to the same number of coats.
What else belongs in a complete mapping system?
Allow for the compatible lens, mount, computer or media server, mapping software, content, video distribution, control, power and commissioning. Larger installations may need multiple synchronized outputs and calibration hardware. Budgeting only for the projector body and paint misses much of the working system.
What information should I send for a recommendation?
Send surface dimensions and photographs, proposed mounting locations and distances, lighting during operation, audience positions, intended content, operating hours, timeline and budget. Include substrate details for paint and identify floor or exterior areas. This lets the team evaluate geometry, output and coating requirements together.