Facebook Technologies, LLC

Ultrahaptics IP Two Limited

John Adrian Arthur Johnston

Larry Seiler

Alexander Nankervis

Alex Marcolina

Johnathon Scott Selstad

Jeremy Freeman

The technology disclosed relates to a method of realistic simulation of real world interactions as virtual interactions between a control object sensed acting in a three-dimensional (3D) sensory space and the virtual object in a virtual space that the control object interacts with. In particular, it relates to detecting free-form gestures of a control object in a three-dimensional (3D) sensory space and generating for display a 3D solid control object model for the control object during the free-form gestures, including sub-components of the control object and in response to detecting a free-form gesture of the control object in the 3D sensory space in virtual contact with the virtual object, depicting, in the generated display, the virtual contact and resulting motions of the virtual object by the 3D solid control object model.

Interaction engine for creating a realistic experience in virtual reality/augmented reality environments

In one embodiment, a method includes determining a first time interval for rendering pixel values for a first portion of a display, where the first portion of the display is one of a plurality of portions of the display, accessing a representation of virtual objects in a virtual scene, and determining that the first time interval is insufficient for rendering pixel values for the first portion of the display based on the representation of virtual objects. The method further includes, for each of the portions of the display, determining a current viewpoint of a user, rendering, based on the current viewpoint of the user, pixel values for that portion of the display, and sending the rendered pixel values to be output by the display, where the rendered pixel values for the first portion of the display are rendered based on a simplified representation of virtual objects in the virtual scene.

Beam-racing fallbacks in a display engine

In one embodiment, a method includes, generating rays for casting into an artificial reality scene that includes one or more surfaces to determine whether the one or more surfaces are visible from a viewpoint. An origin and a trajectory of each ray are based on the viewpoint. The method includes applying a geometric transformation to the rays to modify their respective trajectory into the artificial reality scene. The geometric transformation is based on one or more distortion characteristics of a display system. The method includes determining, based on the modified trajectories of the rays, points of intersection of rays with the one or more surfaces in the artificial reality scene. The method includes providing, for display by the display system, color values generated based on the determined points of intersection.

Display engine for post-rendering processing

In one embodiment, a system may determine a sampling location within a texture with each texel encoding first and second distance fields and first and second color indices. The system may select, based on the sampling location, a set of texels to use to determine a color for the sampling location. The system may compute first and second interpolated distance fields based on, respectively, the first and second distance fields of the set of texels. The system may select, based on the first interpolated distance field, a subset of the set of texels, and select a texel from the subset of texels based on a distance between the texel and the sampling location. The system may select, based on the second interpolated distance filed, a color index from the first and second color indices of the selected texel and use it to determine the color for the sampling location.

Dual distance field color palette

In one embodiment, a method for determining the color for a sample location includes using a computing system to determine a sampling location within a texture that comprises a plurality of texels. Each texel may encode a distance field and a color index. The system may select, based on the sampling location, a set of texels in the plurality of texels to use to determine a color for the sampling location. The system may compute an interpolated distance field based on the distance fields of the set of texels. The system may select, based on the interpolated distance field, a subset of the set of texels. The system may select a texel from the subset of texels based on a distance between the texel and the sampling location. The system may then determine the color for the sampling location using the color index of the selected texel.

Distance field color palette

In one embodiment, a method for computing a color value for a sampling pixel region includes using a computing system to determine a sampling pixel region within a texture. The texture is associated with mipmap levels having different resolutions of the texture. The mipmap levels include at least a first mipmap level defined by color texels and a second mipmap level defined by distance-field texels. The system may select one of the mipmap levels based on a size of the sampling pixel region and a size of a texel in the selected mipmap level. The system may then compute a color value for the sampling pixel region using the selected mipmap level.

Growing community of inventors

San Mateo, CA, United States of America

John Adrian Arthur Johnston