3D Projection Mapping Lecture 4 PDF

Special Topics in TV production MDP 346 3D Projection Mapping Dr. George Latif Sedhom gu.edu.eg What is 3D Projection Mapping? 3D projection mapping is a creative technology that transforms objects or surfaces into dynamic displays for video projection....

Special Topics in TV production MDP 346 3D Projection Mapping Dr. George Latif Sedhom gu.edu.eg What is 3D Projection Mapping? 3D projection mapping is a creative technology that transforms objects or surfaces into dynamic displays for video projection. Unlike traditional flat screen projection, 3D projection mapping uses the unique shape, contours, and dimensions of an object—like buildings, cars, or sculptures—as a canvas to create visually immersive effects. 2 Uses of 3D Projection Mapping 1. Public Events and Festivals Transforming buildings and landmarks into vibrant art displays (e.g., light festivals). 2. Entertainment and Live Performances Enhancing concerts, theater productions, and stage shows with dynamic visuals. 3. Advertising and Marketing Creating eye-catching product launches and promotional campaigns. 4. Museums and Education Bringing artifacts to life and creating interactive, educational exhibits. 5. Architectural Visualization Showcasing building designs and environments before construction. 3 6. Gaming and Virtual Reality (VR) Building immersive gaming setups and interactive spaces. 7. Corporate Events and Conferences Elevating keynotes, product demonstrations, and workshops with impactful visuals. 8. Weddings and Celebrations Adding personalized, magical effects to venues and cakes. 9. Retail and Interior Design Creating dynamic storefront displays and immersive shopping experiences. 10. Tourism and Theme Parks Enhancing attractions, rides, and landmark displays with storytelling animations. These applications highlight the versatility of 3D projection mapping in art, technology, business, and entertainment. 4 Detailed Components of 3D Projection Mapping 3D projection mapping involves a combination of hardware, software, and design techniques to create visually stunning effects. Here's an in-depth look at its components: 1. Projection Surface (Canvas) The surface acts as the "screen" for the projection, but unlike traditional flat screens, it is typically a 3D object. Types of Surfaces: Static Objects: Buildings, cars, sculptures, or furniture. Dynamic Objects: Moving vehicles, robotic arms, or rotating platforms. Natural Elements: Rock formations, trees, or mountains. 5 Considerations: Surface Color and Texture: Lighter and smoother surfaces provide better projection clarity. Complexity: Highly detailed surfaces (e.g., ornate architecture) require more precise mapping. 6 2. Projector A crucial piece of hardware that casts the visuals onto the surface. Features to Consider: Resolution: Determines the clarity of the projected image (4K is common for detailed projects). Brightness: Measured in lumens; high brightness (10,000 lumens or more) is necessary for outdoor or large-scale projections. Throw Distance: Short-throw projectors are ideal for close-range setups, while long-throw ones are better for large spaces. Lens Shift: Allows for precise adjustments without moving the projector physically. 7 3. Mapping Software Specialized software is used to align the visuals with the 3D object's shape and contours. Popular Tools: MadMapper: Known for its simplicity and versatility. Resolume Arena: Combines projection mapping with real-time video effects. TouchDesigner: Ideal for interactive and complex installations. Blender/After Effects: For creating 3D animations and effects. 8 Key Functions: Object Scanning and Modeling: Maps the surface’s dimensions and details. Content Alignment: Ensures animations fit perfectly onto the object. Warping and Blending: Adjusts the visuals to correct distortions caused by the surface's geometry. 9 4. Content Design The visuals and animations are the heart of the projection. Tools for Design: 3D Modeling Software: Blender, Cinema 4D, or Maya for creating 3D animations. 2D Animation Tools: Adobe After Effects or Photoshop for simpler visuals. Video Editing Software: Final Cut Pro or Premiere Pro for post- production. Common Visual Effects: Transformation: Illusions of the object changing shape or material. Illumination: Simulated lighting and shadow effects. Dynamic Content: Real-time interactions or reactive animations. 10 5. Playback System Hardware and software that control the delivery of visuals to the projector. Key Components: Media Server: A high-performance computer that stores and processes video content (e.g., Green Hippo, Disguise). Controller Software: Synchronizes content playback with music, sound effects, or live performances. Synchronization Tools: Ensures multiple projectors work in unison when covering large or complex surfaces. 11 6. Calibration and Alignment Tools Before the final projection, precise calibration ensures accuracy. Tools Used: Laser Pointers: To mark key alignment points on the surface. Test Patterns: Grids or patterns projected to fine-tune alignment. Sensors: Cameras or motion detectors for interactive content. 12 7. Power Supply and Environmental Considerations Power: Reliable power sources are essential for projectors and media servers. Environmental Factors: Weatherproofing: For outdoor installations, protect equipment from rain, wind, and heat. Ambient Light: Consider using high- lumen projectors in areas with significant light pollution. 13 14 Thank You gu.edu.eg