Abstract: Three-dimensional object edit and visualization techniques and systems are described. In a first example, a content navigation control is implemented by a content editing system to aid navigation through a history of how a three-dimensional environment and a three-dimensional object included in the environment is created. In a second example, the content editing system is configured to streamline placement of a three-dimensional object within a three-dimensional environment. The content editing system, for instance, generates a manipulation visualization in support of corresponding editing operations to act as a guide, e.g., as an alignment guide or an option guide. In a third example, the content editing system implements a shadow control that is usable as part of an editing and as a visualization to control rendering of illumination within a three-dimensional environment.

Abstract: Three-dimensional object edit and visualization techniques and systems are described. In a first example, a content navigation control is implemented by a content editing system to aid navigation through a history of how a three-dimensional environment and a three-dimensional object included in the environment is created. In a second example, the content editing system is configured to streamline placement of a three-dimensional object within a three-dimensional environment. The content editing system, for instance, generates a manipulation visualization in support of corresponding editing operations to act as a guide, e.g., as an alignment guide or an option guide. In a third example, the content editing system implements a shadow control that is usable as part of an editing and as a visualization to control rendering of illumination within a three-dimensional environment.

Abstract: Procedure for rendering images in real time of three-dimensional models of items of jewellery Procedure for rendering images in real time of three-dimensional models of items of jewellery comprising at least one transparent or translucent stone having facets, which procedure comprises the steps consisting in determining a reference point in the stone, calculating the components of the normals to the facets of the stone in a discrete set of directions around the reference point and storing these components in a map of the normals, and simulating light reflections within the stone by calculating an approximation of the point of intersection between a ray and the stone using a simplified geometric shape of the stone and using, to calculate the direction of the reflected ray, a normal extracted from the map of the normals, corresponding to the point of the surface of the stone located in the direction of the point relative to the reference point.