fbriggs
Joined 5 years ago
Karma
108
Submissions
21
Member since
Jul 8
Recent submissions
Comment · 1 year ago
I am testing it now. My $0.02- it is not worth $200 or even $0 at this point. It is too slow, not very competent at basic tasks. Rip off.
Comment · 1 year ago
paywall
Comment · 2 years ago
Here's my paper on recursive program synthesis using combinator expressions from 2006:
Comment · 2 years ago
* We made an open source C++ NeRF volumetric video engine for VR.
* It trains a NeRF for each frame of video, then compresses it to our format 'ldi3', which enables real-time playback on Quest or Vision Pro in WebXR, Unity or Unreal (open source players are available for all of these).
* We provide a paper explaining how to bake NeRFs into layered depth images for real time rendering.
LMK your questions...
Comment · 2 years ago
pay wall
Comment · 2 years ago
Yup
Comment · 2 years ago
* This is a commercial product. It is free to try, but requires a license to render the final results as a video output.
* It can output 2D videos where a virtual camera flys along a smooth path, or VR180 and Looking Glass portrait holograms.
* If I'm not mistaken this is the first NeRF-based VR stitching engine.
* Unlike NeRF Studio, Volurama does not require command line tools to install.
* Unlike Luma.ai, Volurama is a Windows/Mac application, which means you process your data locally rather than uploading it to the cloud.
* This is a custom/from scratch NeRF and structure-from-motion engine written in C++. It doesn't depend on COLMAP or NVidia's tinycudann. It incorporates ideas from several recent publications, as well as a few proprietary tricks developed at Lifecast.
* This is a 1.0 alpha release, and there are bound to be some bugs.
* Try it out and LMK what you think!
Comment · 4 years ago
"A CYBERPUNK NINJA RIDING AN OSTRICH THROUGH THE STREET OF TOKYO"
https://holovolo.tv/v/962583
Today Lifecast unveils text-to-full 3D immersive environments that can be viewed in VR (e.g., Quest 2) or on 2D screens. We are doing this with a combination of Stable Diffusion and several other neural nets to make it 3D, combined with Lifecast's format for 6DOF VR photos and video. It's free to try and we do the processing in the cloud. Check it out and tell us what you think! This is version 1.0 and we are iterating quickly, so expect improvements in the future.
Comment · 4 years ago
Artifacts at the edges are due to occlusions. An occlusion is a part of the scene which wasn't visible to the original camera. You see these if you move far from the original camera in VR to look behind something. This is a really hard problem for 6DOF. We've been improving the quality of occlusions over time, e.g.:
* v1: https://lifecastvr.com/demo_maui.html
* v2: https://lifecastvr.com/kalalea_fire.html
* v3: https://lifecastvr.com/hubner4.html
Version 3 now uses a 2-layer representation which has an image+depthmap for the background layer, which is drawn to fill in the occlusions. This background layer can be precomputed in a variety of different ways. For example, here is a CGI synthetic scene where we can construct the background layer perfectly:
https://lifecastvr.com/liferay.html
However, making up the background layer for real-world content is more challenging. We are on version 1 of that. We will improve this with machine learning in a future release. We can also substitute a "plate" 3d scene for the background in cases where the camera doesn't move. We have also experimented with using data from other frames when the camera moves. This will improve over time.
Comment · 4 years ago
You would need to use a SteamVR-compatble VR web browser (maybe Firefox VR). Then simply visit one our demo pages in the VR browser. For example:
https://lifecastvr.com/hubner4.html https://lifecastvr.com/dancewiththewind.html https://lifecastvr.com/trickshot.html
Please LMK if that works for you. Thanks.
Comment · 4 years ago
Not yet. We are working on it.