3D model of the green screen

Hi some of you know youtybe channel called "Digital Corridor" they make great short films. I saw one behind behind the scenes of one of the videos out there, called shadow one of Mordor. You can watch it in the link if you want to. I want to know what they were doing at 14:07 minute of the video. They recorded a sword which took place and rotate in front of a green screen. It was recorded at a 120 frames per second. I'm fair to assume that they have used these images to do, sort of a 3D model of the sword that allows to follow the handle of the sword in the hands of actors to make the cool effects of stabing...? If so, how to make a 3D model using the green screen sequence? And if it's not the case why they recorded the sword like that...? THX in advance

You make the 3D model of the actual prop sword by measuring and creating the model. Images of reference was for color grading and texturing the 3D sword to match lighting and reflections about the location. There are literally hundreds of ways to generate maps of texture to a 3D model. It is only an option. Many were probably used. Have you noticed that right after the explanation of what they were doing, the guy said "Thanks for reminding me" and pulled out her phone to take photos more? This is the technique I'd used to get a reflection of cards. I probably would have pulled something different to shoot lighting model. Look for a light sensor for 3D. The technique is not a tutorial, it's a semester in film school. I would go on the forums of APA 3D what ever you use or what you click Start blender.org digging around.

Tags: After Effects

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