Physics-based Image and Video Editing
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by Christopher henrick
1 hours ago

thank u so much 80lv !

google.com/imgres?imgurl=http%3A%2F%2Fspiritwalkministry.com%2Fyahoo_site_admin2%2Fassets%2Fimages%2Fcs_2.219164821_std.jpg&imgrefurl=http%3A%2F%2Fspiritwalkministry.com%2Fcrystals_and_stones&docid=lk6sDMKahaB8eM&tbnid=NXOT-rV4vumsGM%3A&vet=1&w=224&h=224&bih=642&biw=1280&ved=0ahUKEwiLkfK-96TcAhWRJXwKHSErBXEQMwh1KA4wDg&iact=c&ictx=1 hope this img file works just copy in url bar I guess

Shader looks great, tho the normal on the top seems almost invisible. I really like this tho, I think I can use something similar for a jade statue. But I do think on top of this having a few pieces of geo inside your ice to create the look of cracks that light up at the right viewing angle would be a great touch. 1 last thing and this is more nit picky then anything id say the layer of cracks that seems to be a copy of the top layer beneath maybe just for that layer use your fernsel inverted as a opacity to make them disappear towards the edge of your geo. as for the geo cracks im talking like this, however this is a crystal rock mind you I think youll get my point https://www.google.com/imgres?imgurl=http%3A%2F%2Fspiritwalkministry.com%2Fyahoo_site_admin2%2Fassets%2Fimages%2Fcs_2.219164821_std.jpg&imgrefurl=http%3A%2F%2Fspiritwalkministry.com%2Fcrystals_and_stones&docid=lk6sDMKahaB8eM&tbnid=NXOT-rV4vumsGM%3A&vet=1&w=224&h=224&bih=642&biw=1280&ved=0ahUKEwiLkfK-96TcAhWRJXwKHSErBXEQMwh1KA4wDg&iact=c&ictx=1

Physics-based Image and Video Editing
11 September, 2017
News

Cornell University Library featured a novel interactive method for editing images and videos in a physically-coherent manner. The paper discussed a model that that realizes physics-based manipulations by running a full physics simulation on proxy geometries given by non-rigidly aligned CAD models.

The model was introduced in a paper “Calipso: Physics-based Image and Video Editing through CAD Model Proxies” by Nazim HaouchineFrederick RoyHadrien CourtecuisseMatthias NießnerStephane Cotin. Check out a quick overview from the Two Minute Papers channel to get some details on the work:

Abstract

We present Calipso, an interactive method for editing images and videos in a physically-coherent manner. Our main idea is to realize physics-based manipulations by running a full physics simulation on proxy geometries given by non-rigidly aligned CAD models. Running these simulations allows us to apply new, unseen forces to move or deform selected objects, change physical parameters such as mass or elasticity, or even add entire new objects that interact with the rest of the underlying scene. In Calipso, the user makes edits directly in 3D; these edits are processed by the simulation and then transfered to the target 2D content using shape-to-image correspondences in a photo-realistic rendering process. To align the CAD models, we introduce an efficient CAD-to-image alignment procedure that jointly minimizes for rigid and non-rigid alignment while preserving the high-level structure of the input shape. Moreover, the user can choose to exploit image flow to estimate scene motion, producing coherent physical behavior with ambient dynamics. We demonstrate Calipso’s physics-based editing on a wide range of examples producing myriad physical behavior while preserving geometric and visual consistency.

Make sure to study the full paper here

Source: arxiv.org

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