Abstract: The invention concerns a portable device that, even for a device of small dimensions, increases the amount of the recorded imagery data of a measured object in a fixed position in order to obtain spatially varying surface reflectance data, i.e. Bidirectional Texture Function data, and the multidirectional imaging of real objects with the use of a basic three-dimensional object (2) equipped with first illumination units (4) and/or exit apertures of a light guiding system (21) in combination with multiplication of optical elements (11) contributing to the imaging on the acquisition system and/or second illumination units (9) and/or acquisition elements of the camera/detector type and/or third illumination units (12), by their placement on moveable arms (7, 8, 13) attached to the basic three-dimensional object (2). This principle is usable for small portable devices and allows for recording the visual appearance of surfaces on site without having to extract a sample from its environment.

Abstract: A graphics processing method and apparatus includes determining locations of primitives in a 3-dimensional (3D) space from graphics data for the 3D space in a memory, determining sizes of the primitives, generating Morton codes comprising a piece of information indicating the locations of the primitives and a piece of information indicating the sizes of the primitives, classifying the primitives into bounding boxes using the piece of information indicating the sizes of the primitives, and generating the acceleration structure indicating an inclusion relationship between the bounding boxes.

Abstract: The invention concerns a portable device that, even for a device of small dimensions, increases the amount of the recorded imagery data of a measured object in a fixed position in order to obtain spatially varying surface reflectance data, i.e. Bidirectional Texture Function data, and the multidirectional imaging of real objects with the use of a basic three-dimensional object (2) equipped with first illumination units (4) and/or exit apertures of a light guiding system (21) in combination with multiplication of optical elements contributing to the imaging on the acquisition system and/or second illumination units (9) and/or acquisition elements of the camera/detector type and/or third illumination units (12), by their placement on moveable arms (7, 8, 13) attached to the basic three-dimensional object (2). This principle is usable for small portable devices and allows for recording the visual appearance of surfaces on site without having to extract a sample from its environment.

Abstract: A graphics processing method and apparatus includes determining locations of primitives in a 3-dimensional (3D) space from graphics data for the 3D space in a memory, determining sizes of the primitives, generating Morton codes comprising a piece of information indicating the locations of the primitives and a piece of information indicating the sizes of the primitives, classifying the primitives into bounding boxes using the piece of information indicating the sizes of the primitives, and generating the acceleration structure indicating an inclusion relationship between the bounding boxes.