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3 records in this category

  1. The ultimate DNxHR and ProRes guide By Lowepost no no yes No

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  2. 360VR and Stereoscopic 3D in After Effects Lee Lanier no no yes Yes

     

    In this tutorial series instructor Lee Lanier teach you everything you need to know about how to create 360VR videos in Adobe After Effects, and how to work with Stereoscopic 3D footage. 

    You will learn how to set up your After Effects project for VR, masking and nesting, paint fixing techniques, stabilizing and motion tracking, using immersive plug-ins, working with Stereoscoping 3D and much more.

    The After Effect project files and footage are available for download so that you can easily follow along.

    About the instructor

    Lee Lanier has created visual effects on numerous features films for Walt Disney Studios and PDI/DreamWorks. Lee is a world-renowned expert in the video effects field, and has written several popular high-end software books, and taught at the Gnomon School of Visual Effects in Hollywood.

    Who is this course designed for?

    • After Effects users (no experience in After Effects is needed)
    • Video makers who want to build a career in VR

    Lessons overview

    • Lesson 01: 360VR Overview
    • Lesson 02: Setting Up a VR Project
    • Lesson 03: Paint Fixing in VR
    • Lesson 04: Masking and Nesting VR Edits
    • Lesson 05: Applying Immersive Plugins
    • Lesson 06: Stabilizing VR
    • Lesson 07: Motion Tracking VR
    • Lesson 08: Converting a 3D Comp to VR
    • Lesson 09: Working with Stereoscopic 3D
    • Lesson 10: Stereoscopic 3D and 360VR
    • Lesson 11: Using a VR Headset

    Software required

    Adobe After Effects
     

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  3. 3D - A Beginners Guide to Stereoscopic Understanding John Daro, Warner Bros no no yes Yes

     

    My interest in Stereoscopic imaging started in 2006. One of my close friends, Trevor Enoch, showed me a stereo-graph that was taken of him while out at Burning Man. I was blown away and immediately hooked. I spent the next four years experimenting with techniques to create the best, most comfortable, and immersive 3D I could. In 2007, I worked on Hannah Montana and Miley Cyrus: Best of Both Worlds Concert directed by Bruce Hendricks and shot by cameras provided by Pace. Jim Cameron and Vince Pace were already developing the capture systems for the first “Avatar” film. The challenge was that a software package had yet to be created to post stereo footage. To work around this limitation, Bill Schultz and I slaved two Quantel IQ machines to a Bufbox to control the two color correctors simultaneously. This solution was totally inelegant but it was enough to award us the job from Disney. Later during the production, Quantel came out with stereo support eliminating the need to color each eye on independent machines.

    We did what we had to in those early days. When I look back at that film, there is a lot that I would do differently now. It was truly the wild west of 3D post and we were writing the rules (and the code for the software) as we went. Over the next few pages I’m going to layout some basics of 3D stereo imaging. The goal is to have a working understanding of the process and technical jargon by the end. Hopefully I can help some other post professionals avoid a lot of the pitfalls and mistakes I made as we blazed the trail all those years ago.

    Camera 1, Camera 2

    Stereopsis is the term that describes how we collect depth information from our surroundings using our sight. Most everyone is familiar with stereo sound; when two separate audio tracks are played simultaneously out of two different speakers. We can take that information in using both of our ears (binaural hearing) and create a reasonable approximation from the direction of where that sound is coming from in space. This approximation is calculated by the offset in time of the sound hitting one ear vs the other.

    Stereoscopic vision works much in the same way. Our eyes have a point of interest. When that point of interest is very far away our eyes are parallel to one another. As we focus on objects that are closer to us, our eyes converge. Do this simple experiment right now. Hold up your finger as far away from your face as you can. Now slowly bring that finger towards your nose, noting the angle of your eyes as you get closer to your face. Once your finger is about 3 inches away from your face, alternately close one eye and then the other. Notice the view as you alternate between your eyes, camera 1, camera 2, camera 1, camera 2. Your finger moves position from left to right. You also see “around” your finger more in one eye vs the other. This offset between your two eyes is how your brain makes sense of the 3D world around you. To capture this depth for films we need to recreate this system by utilizing two cameras roughly the same distance as your eyes.

    Camera Rigs

    The average interpupillary distance is 64mm. Since most feature grade cinema cameras are rather large, special rigs for aligning them together need to be employed. Side by side rigs are an option when your cameras are small, but when they are not you need to use a beam splitter configuration.

    beam_splitter.jpg

    Beam splitter rig in an "over" configuration.

    Essentially, a beam splitter rig uses a half silvered mirror to “split” the view into two. This allows the cameras to shoot at a much closer inter-axial distance than they would otherwise be able to using a parallel side by side rig. Both of these capture systems are for the practical shooting of 3D films.

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