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System and method for producing three-dimensional multi-layer objects from digital models

Номер патента: US20120255663A1. Автор: Ilya Baran, Jason Davis Lawrence, Michael Holroyd, Wojciech Matusik. Владелец: Disney Enterprises Inc. Дата публикации: 11-10-2012.
A set of two-dimensional layers is determined based on a digital three-dimensional model. An image corresponding to each of the layers is rendered on each of a corresponding number of sheets of at least partially transparent material. The sheets of material are assembled together to produce a three-dimensional structure corresponding to the digital model.

PARTITIONING MODELS INTO 3D-PRINTABLE COMPONENTS

Номер патента: US20140052415A1. Автор: BARAN ILYA, Luo Linjie, MATUSIK WOJCIECH. Владелец: Disney Enterprises, Inc.. Дата публикации: 20-02-2014.
The disclosure provides a technique for recursively partitioning a 3D model of an object into two or more components such that each component fits within a predefined printing volume. The technique includes determining a set of planar cuts each of which partitions the 3D model into at least two components, evaluating one or more objective functions for each cut in the set of planar cuts, and selecting a cut from the set of planar cuts based on the evaluations of the objective functions. In addition, the technique includes, upon determining that a component resulting from the selected cut does not fit within the predefined printing volume, further partitioning that component. 1. A computer-implemented method for recursively partitioning a 3D model of an object into two or more components such that each component fits within a predefined printing volume , comprising:determining, via one or more processors, a set of planar cuts, wherein each planar cut partitions the 3D model into at least two components;evaluating one or more objective functions for each cut in the set of planar cuts;selecting a cut from the set of planar cuts based on the evaluations of the objective functions; andupon determining that one or more of the at least two components resulting from the selected cut does not fit within the predefined printing volume, further partitioning that component.2. The computer-implemented method of claim 1 , wherein one or more of the objective functions is a binary objective function claim 1 , further comprising:prior to selecting the cut, determining whether to reject the cut based on evaluation of at least one binary objective function.3. The computer-implemented method of claim 2 , wherein a first of the binary objective functions determines structural soundness of each component resulting from a cut being evaluated and of the components after assembly.4. The computer-implemented method of claim 2 , wherein a first of the binary objective functions determines a ...

System and method for producing three-dimensional multi-layer objects from digital models

Номер патента: US20140063558A1. Автор: Ilya Baran, Jason David Lawrence, Michael Holroyd, Wojciech Matusik. Владелец: Disney Enterprises Inc. Дата публикации: 06-03-2014.
A set of two-dimensional layers is determined based on a digital three-dimensional model. An image corresponding to each of the layers is rendered on each of a corresponding number of sheets of at least partially transparent material. The sheets of material are assembled together to produce a three-dimensional structure corresponding to the digital model.

Multi-User Cloud Parametric Feature-Based 3D CAD System with Bi-directional Editing

Номер патента: US20200004894A1. Автор: BARAN ILYA. Владелец: . Дата публикации: 02-01-2020.
Disclosed is a parametric feature-based 3D CAD system that allows multiple users to simultaneously edit a parametric feature-based 3D CAD model consisting of 3D parts and assemblies of those parts (3D Model). Several CAD users, each using their own computer, phone, or tablet, can edit the same 3D Model at the same time. Editing may be separate and simultaneous—there is no need for users to worry about locking, checking out, or otherwise restricting each other's access to 3D Models. As a result, users see each other's changes occur in real-time, and may also identify what aspects other users are actively modifying through visible Collaboration Cues. 1. A system for executing three dimensional (3D) multi-user distributed parametric computer-aided design (CAD) , the system comprising:one or more servers;one or more client devices connected over a network to the one or more servers; perform CAD geometry calculations including shape analysis and optimization of 3D graphics data,', 'manage CAD editing workflow,', 'manage user accounts and secure access,', 'manage documents and storage, and', 'communicate with the one or more client devices;, 'server software executed on one or more servers, the server software comprising code to render a user interface for displaying 3D CAD graphics for design and project management,', 'interact with user input and output controls to manipulate a 3D CAD design,', 'communicate with the one or more servers, and', 'simultaneously display three representation versions of the 3D CAD design, including display as a feature list, display as a visual model of the 3D CAD design, and display as a textual representation of a program corresponding to the 3D CAD design, and wherein user interaction within any of the three display versions highlights corresponding aspects in the other two versions, and user edits made to any of the three display versions are correspondingly applied and displayed in the other two versions;, 'client software executed on ...

Multi-User Cloud Parametric Feature-Based 3D CAD System with Branch and Merge

Номер патента: US20200004895A1. Автор: BARAN ILYA, Eyre Nicholas J., Gallo, III Louis V., Lauer Michael R.. Владелец: . Дата публикации: 02-01-2020.
Disclosed is a parametric feature-based 3D CAD system that allows multiple users to simultaneously edit a parametric feature-based 3D CAD model consisting of 3D parts and assemblies of those parts (3D Model). Several CAD users, each using their own computer, phone, or tablet, can edit the same 3D Model at the same time. Editing may be separate and simultaneous—there is no need for users to worry about locking, checking out, or otherwise restricting each other's access to 3D Models. As a result, users see each other's changes occur in real-time, and may also identify what aspects other users are actively modifying through visible Collaboration Cues. 1. A system for executing three dimensional (3D) multi-user distributed parametric computer-aided design (CAD) , the system comprising:one or more servers;one or more client devices connected over a network to the one or more servers; perform CAD geometry calculations including shape analysis and optimization of 3D graphics data,', 'manage CAD editing workflow,', 'manage user accounts and secure access,', 'communicate with the one or more client devices,', 'manage documents and storage including storing multiple files grouped together as a single data structure, the multiple files comprising data representations of assemblies, parts, and non-CAD data of a project encompassing the 3D CAD design,', 'share the 3D CAD design between multiple users simultaneously accessible through multiple client devices, and', 'store all changes to the 3D CAD design as sequential changes applied within a workspace;, 'server software executed on one or more servers, the server software comprising code to render a user interface for displaying 3D CAD graphics for design and project management,', 'display the multiple files of the project as tabbed document panes within the user interface,', 'interact with user input and output controls to manipulate a 3D CAD design, and', 'communicate with the one or more servers;, 'client software executed on ...

VISIBILITY SILHOUETTES FOR MASKED SPHERICAL INTEGRATION

Номер патента: US20140152662A1. Автор: BARAN ILYA, JAROSZ WOJCIECH, Mitchell Kenny, NOWROUZEZAHRAI Derek. Владелец: . Дата публикации: 05-06-2014.
The disclosure provides an approach for determining, in 3D rendering, the integrals of visibility-masked spherical functions using visibility silhouettes. For a given shade point, the visibility silhouette for that shade point includes a set of edges from the scene geometry which form the boundaries between visible and invisible regions of a hemisphere having the shade point as its center. For each shade point, a rendering application determines a set of contour edges of scene geometry, the contour edges being a superset of the set of visibility silhouette edges, by querying a 4D dual mesh. The rendering application then evaluates the integral of the visibility-masked spherical function for a given shade point by integrating over segments of discrete u-isolines for which an overlap function indicates that a ray from the shade point would not intersect scene geometry. 1. A computer-implemented method , comprising:receiving geometry of a scene; and determining a visibility silhouette, the visibility silhouette having edges which define boundaries between visible and occluded regions from a perspective of the shade point, and', 'determining a spherical visibility-masked integral, wherein spherical visibility in the integral is represented by the visibility silhouette., 'for each of a plurality of shade points in the scene2. The method of claim 1 , wherein determining the visibility silhouette includes determining contour edges claim 1 , and determining visibility silhouette edges from the contour edges.3. The method of claim 2 , wherein the contour edges are determined by:determining boundary edges of the scene geometry; andprocessing 4D line segment representations of respective non-boundary edges of the scene geometry into a bounding volume hierarchy and querying the bounding volume hierarchy for intersection with a 3D hyperplane normal to the shade point, wherein the 4D line segments have triangles adjacent to the respective edges as endpoints.4. The method of claim ...

METABRUSHES FOR DIGITAL PAINTING

Номер патента: US20140267223A1. Автор: BARAN ILYA, CANI MARIE-PAULE, COROS Stelian, MILLIEZ ANTOINE, SUMNER Robert. Владелец: Disney Enterprises, Inc.. Дата публикации: 18-09-2014.
Metabrushes for digital painting (such as 3D painting) are provided. Metabrushes may be defined by 3D paint strokes embedded on an elementary piece of geometry. Paint strokes are replicated in 3D over a user's painting gesture, allowing a fast embedding of numerous strokes using only a few user input gestures. Hierarchical metabrushes are further provided for providing faster and more diverse creation of digital paintings. 1. A method of creating a digital painting , comprising:obtaining a metabrush comprising a plurality of constituent paint strokes; andusing the metabrush along a brush path to instantiate a metabrush instance, wherein the metabrush instance comprises the plurality of constituent paint strokes replicated along the brush path.2. The method of claim 1 , further comprising defining the metabrush in 3D space by an elementary geometry claim 1 , wherein the plurality of constituent paint strokes are embedded on the elementary geometry.3. The method of claim 2 , further comprising computing a scale of the metabrush in world space.4. The method of claim 2 , further comprising creating a plurality of sample positions of the metabrush in world space claim 2 , wherein a first sample position and a second sample position of the plurality of constituent paint strokes are adjacent and configured by a spacing parameter.5. The method of claim 4 , wherein the step of replicating the metabrush comprises:defining a coordinate frame on each of the plurality of sample positions;computing a first vector describing a painting gesture direction and a second vector normal to the painting gesture direction;determining an orthogonal coordinate frame by computing a cross product of the first vector and a second vector wherein the orthogonal coordinate frame is along the brush path; andusing the orthogonal coordinate frame to replicate the metabrush.6. The method of claim 1 , wherein the step of using the metabrush comprises applying a noise model to the metabrush.7. The ...

B-rep matching for maintaining associativity across CAD interoperation

Номер патента: US20200218835A1. Автор: BARAN ILYA, Schulz Adriana. Владелец: . Дата публикации: 09-07-2020.
A method allows transferring references from vertices, edges, and faces of a solid or surface model to an edited model, by finding correspondences between vertices, edges, faces, and bodies of the models. The method begins by quickly finding matching bodies and aligning them, considering factors such as size, complexity, and the location of its vertices, edges, and faces. For every pair of matched bodies, it then matches exactly coincident vertices, edges, and faces. Of the remaining unmatched topology, it matches edges and faces in the new model that overlap those of the old model considerably. It uses near-neighbor structures to speed up the search for correspondences by eliminating old-new pairs of vertices, edges, and faces that do not overlap. Finally, it iteratively matches unmatched vertices, edges, and faces whose adjacent vertices, edges, and faces are in exact correspondence between the old and new models. 1. A method within software operating computer aided design (CAD) comprising:importing a boundary representation (B-rep) of a CAD model as a new model;selecting an existing CAD model within the CAD software as an old model; identifying bodies within each model;', 'computing a signature for each body as a vector of five numbers including a volume of the body, a diagonal length of an axis-aligned bounding box of the body, a number of vertices of the body, a number of edges of the body, and a number of faces of the body, such that similar bodies will have similar signatures;', their volumes are within a factor of ten of each other,', 'their bounding box diagonals are within a factor of two of each other,', 'a higher count of vertices of one signature is at most one hundred plus twice the count of vertices of the other signature,', 'a higher count of edges of one signature is at most one hundred plus twice the count of edges of the other signature, and', 'a higher count of faces of one signature is at most one hundred plus twice the count of faces of the ...

Multi-User Cloud Parametric Feature-Based 3D CAD System

Номер патента: US20160246899A1. Автор: BARAN ILYA, Chastell Paul R., Eyre Nicholas J., Gallo, Harris Scott S., Hess Steven C., Hirschtick Jon K., III Louis V., Kumar Malay, Lauer Michael R., Morris Andrew John, Nallapareddy Ravi, Nowak Karl Evan, Rajkumar Parapura, ROUSSEAU John, Saksonov Lana, Thomas Philip Gareth, Vangapalli Rammohan, Vlasic Daniel. Владелец: . Дата публикации: 25-08-2016.
Disclosed is a parametric feature-based 3D CAD system that allows multiple users to simultaneously edit a parametric feature-based 3D CAD model consisting of 3D parts and assemblies of those parts (3D Model). Several CAD users, each using their own computer, phone, or tablet, can edit the same 3D Model at the same time. Editing may be separate and simultaneous—there is no need for users to worry about locking, checking out, or otherwise restricting each other's access to 3D Models. As a result, users see each other's changes occur in real-time, and may also identify what aspects other users are actively modifying through visible Collaboration Cues. 1. A system for executing three dimensional (3D) multi-user distributed parametric computer-aided design (CAD) , the system comprising:one or more servers;one or more client devices connected over a network to the one or more servers;server software executed on one or more servers, the server software comprising code to perform CAD geometry calculations including shape analysis and optimization of 3D graphics data, manage CAD editing workflow, manage user accounts and secure access, manage documents and storage, and communicate with the one or more client devices;client software executed on the one or more client devices, the client software comprising code to render a user interface for displaying 3D CAD graphics for design and project management, interact with user input and output controls to manipulate a 3D CAD design, and communicate with the one or more servers;wherein the 3D CAD design includes one or more parts and one or more assemblies consisting of connections and configurations of the one or more parts and sub-assemblies, and the client software further comprises code to enable a user to manipulate the parts and assemblies of the 3D CAD design through ordered feature lists;wherein the client software further comprises code utilizing a combination of hyper text markup language with cascading style sheets and ...

Rendering images with volumetric shadows using rectified height maps for independence in processing camera rays

Номер патента: US9280848B1. Автор: Fredo Durand, Ilya Baran, Jiawen Chen, Wojciech Jarosz. Владелец: Disney Enterprises Inc. Дата публикации: 08-03-2016.
Rendering a scene with participating media is done by generating a depth map from a camera viewpoint and a shadow map from a light source, converting the shadow map using epipolar rectification to form a rectified shadow map (or generating the rectified shadow map directly), generating an approximation to visibility terms in a scattering integral, then computing a 1D min-max mipmap or other acceleration data structure for rectified shadow map rows and traversing that mipmap/data structure to find lit segments to accumulate values for the scattering integral for specific camera rays, and generating rendered pixel values that take into account accumulated values for the scattering integral for the camera rays. The scattering near an epipole of the rectified shadow map might be done using brute force ray marching when the epipole is on or near the screen. The process can be implemented using a GPU for parallel operations.
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