Disclosed herein is a web-based videoconference system that allows for video avatars to navigate within a virtual environment. Various methods for efficient modeling, rendering, and shading are disclosed herein.

A shadow rendering method for an image includes: re-projecting 3D coordinates of image pixels from an image space of the image to points on a 2D shadowmap space; estimating at least one of a horizontal and vertical distribution of the points in the shadow map space; for a flexible scale rasteriser ‘FSR’, updating a horizontal or vertical FSR curve corresponding to a distribution of FSR bins for the shadow map so that the corresponding horizontal or vertical distribution of points per bin is most even; and rendering the shadow map using flexible scale rasterization.

A method for providing a relightable avatar of a subject to a virtual reality application is provided. The method includes retrieving multiple images including multiple views of a subject and generating an expression-dependent texture map and a view-dependent texture map for the subject, based on the images. The method also includes generating, based on the expression-dependent texture map and the view-dependent texture map, a view of the subject illuminated by a light source selected from an environment in an immersive reality application, and providing the view of the subject to an immersive reality application running in a client device. A non-transitory, computer-readable medium storing instructions and a system that executes the instructions to perform the above method are also provided.

The present technology is directed to visualizing a Wi-Fi access point radio frequency (RF) propagation pattern based on telemetry data over time. The present technology can receive telemetry data for a Wi-Fi network of a building plan in a Wi-Fi visualization system, store the telemetry data with a timestamp, determine a RF propagation pattern in a 3-D space for at least one Wi-Fi access point in the Wi-Fi network, present a user interface including a time slider to facilitate manipulation of a time axis between the first timestamp and the second timestamp, and present a visualization of the RF propagation pattern based on an indication of the time slider.

Disclosed herein is a web-based videoconference system that allows for video avatars to navigate within a virtual environment. Various methods for efficient modeling, rendering, and shading are disclosed herein.

A method of rendering an image of three-dimensional laser scan data is described. The method includes providing a range cube map and a corresponding image cube map generating a tessellation pattern using the range cube map and rendering an image based on the tessellation pattern by sampling the image cube map.

Methods and systems for rendering an output image from a plurality of input images. The plurality of input images is received, and each input image is taken from a different first location. A view specification for rendering the output image is received, and the view specification includes at least a second location. The second location is different from each of the first locations. An output image is rendered based at least in part on the plurality of input images and the view specification, and the output image includes an image of a region as seen from the second location. The output image is displayed on a display.

Fusing online and mapped terrain estimates by using weighted grid cells that scales the values returned from online terrain and mapped terrain is disclosed. Previously mapped terrain data and online terrain data are fused and a grid having cells of a predetermined size is overlaid on the terrain map. Each cell may include terrain data based on weighted mapped terrain data and weighted online terrain data, where the weighting values for the mapped terrain data and for the online terrain data may be different. A fused terrain estimate may be a result of a weighted mean for each cell smoothed to reduce noise.

In a display terminal device, a CPU determines an arrangement position of a virtual object in real space by software processing and outputs a first image, which is an image of the virtual object, and information indicating the arrangement position. An imaging unit captures a second image, which is an image of the real space. A synthesizer generates a synthetic image by combining the first image and the second image by hardware processing based on the arrangement position. A display is directly connected to the synthesizer and displays the synthetic image.

This application discloses an image rendering method and apparatus, an electronic device, and a storage medium, and belongs to the field of image processing technologies. The method includes: acquiring a lightmap of a target three-dimensional model in response to a light rendering instruction; acquiring a seam edge of the target three-dimensional model; determining, in the lightmap, a target pixel corresponding to the seam edge; and updating an initial pixel value of the target pixel in the lightmap to obtain a repaired lightmap. In this application, the seam edge of the target three-dimensional model is automatically identified, and the pixel value of the target pixel is automatically updated, so that automatic recognition and automatic repair of a seam problem can be completed by one click, thereby avoiding a waste of labor resources for troubleshooting and repairing the seam problem, reducing image rendering time, and improving image rendering efficiency.