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3D drawing and painting system with a 3D scalar field

Active Publication Date: 2015-02-10
ETH ZURICH EIDGENOESSISCHE TECHN HOCHSCHULE ZURICH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a system for drawing and painting in 3D using a 2D input device. The system allows users to input strokes and other image elements in a way that is intuitive and quick. The system also allows users to define their own canvases in 3D space and paint along level sets or across different levels. Overall, the system provides creative freedom and control for users while still maintaining a level of controllability.

Problems solved by technology

Translating the expressive freedom into three dimensions, so that paintings could be viewed from multiple angles or obtaining other benefits of a 3D representation, has been a research challenge for many years.

Method used

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Examples

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Embodiment Construction

[0067]An improved computer-generated image generation system is described herein. Such a system can be used to create single images or animated sequences of images. In particular, the images are generated from three-dimensional (3D) geometric models. As used herein, a geometric model is a computer-based, electronically readable representation of objects that have positions in a virtual 3D space. The objects can be representations of some physical object or of objects with no physical world counterpart. The objects can be things, light sources, atmospheric effects, and other things that affect a view. Typically, the view is from a camera viewpoint through a view plane, but other variations are possible, such as a view from two points for 3D imagery or a nonplanar view surface. This disclosure is not intended to be limited to any particular process of rendering or image generation from the geometric model.

[0068]Prior to the advent of computers, an artist wishing to paint a particular ...

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PUM

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Abstract

Rendering 3D paintings can be done by compositing strokes embedded in space. Users input strokes and other image elements using an input device that specifies a 2D view of the element, and the system provides the 3D position of the element based on rules and processes, some of which allow for user input of high level parameters, thereby allowing for intuitive and quick entry of 3D elements, and a 3D scalar field. The artist can treat the full 3D space as a canvas. Strokes painted in a 2D viewport window are embedded in 3D space in a way that gives creative freedom to the artist while maintaining an acceptable level of controllability. The canvas need not be tied to any particular object already in a scene, but the canvas can be dependent on, or a function of, another object. An implicit canvas can be defined by the 3D scalar field.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This application is a U.S. Non-Provisional Patent Application of U.S. Provisional Patent Application No. 61 / 433,967, filed Jan. 18, 2011, entitled “OVERCOAT: AN IMPLICIT CANVAS FOR 3D PAINTING”, the entire disclosure of which is incorporated by reference herein for all purposes.[0002]A related application is U.S. Provisional Patent Application No. 61 / 487,684, filed May 18, 2011, entitled “MIXED-ORDER COMPOSITING FOR IMAGES HAVING THREE-DIMENSIONAL PAINTING EFFECTS”, the entire disclosure of which is incorporated by reference herein for all purposes.FIELD OF THE INVENTION[0003]The present invention relates generally to image generation and more specifically to image generation (whether individual images or animation sequences of images) based on elements that include simulated paint strokes represented in a three-dimensional space.BACKGROUND[0004]Traditional two-dimensional (“2D”) painting techniques and digital 2D painting systems provid...

Claims

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Application Information

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IPC IPC(8): G09G5/00G06T15/50G06T15/60
Inventor SCHMID, JOHANNESSENN, MARTIN SEBASTIANGROSS, MARKUSSUMNER, ROBERT
Owner ETH ZURICH EIDGENOESSISCHE TECHN HOCHSCHULE ZURICH
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