Square Enix Co., Ltd.

Kabushiki Kaisha Square Enix

Yusuke Tokuyoshi

Shinji Ogaki

Tiago Da Silva

In an importance map of the scene that is generated to correspond to the two-dimensional map, a composite region is set such that the summation of the importances becomes a predetermined value for each of the predetermined number of composite virtual lights, and for each of the predetermined number of composite virtual lights, a parameter of the composite virtual light is decided based on a region of the two-dimensional map that corresponds to the composite region that was set. Here, the composite region is set so that a value obtained by totaling, for the predetermined number of the composite virtual lights, the summation of the importances for the composite region set for each composite virtual light, corresponds to a summation of the importances of entire region of the importance map.

Recording medium, luminance computation apparatus, and luminance computation method

A luminance computation apparatus obtains information of light sources defined in a scene that is rendered, and defines a stochastic function used to determine whether or not to use a light source in a luminance computation for an object that is a predetermined distance from the light source corresponding to a luminance attenuation function in accordance with a distance from the light source for each of the light sources that are defined; The apparatus determines for each of the defined light sources a stochastic effective area of the light source based on the stochastic function for the respective defined light source, and performs a luminance computation for the predetermined object in the scene based on the stochastic function and the attenuation function of a light source for which the determined stochastic effective area is included in the object.

Storage medium, luminance computation apparatus and luminance computation method

An information processing apparatus obtains an incident radiance at a shading point by obtaining a light emission radiance of a target light source expressed by a spherical Gaussian (SG expressed), approximating by a spherical Gaussian (SG approximating) a function indicating a spread of the target light source from a perspective of the shading point, and obtaining the product of these. Also, the apparatus SG approximates a bidirectional reflection distribution function (BRDF) at a shading point, and calculates the radiance at the shading point based on information indicating the viewpoint for which the shading point is to be rendered, an incident radiance at the shading point, and the SG approximated BRDF at the shading point.

Storage medium, information processing apparatus and calculation method

An information processing apparatus obtains a number of fragments existing on a straight line defined by each pixel of a rectangular image into which a 3D scene is to be rendered for a predetermined viewpoint and a viewpoint, and divides a two-dimensional region in a screen coordinate system corresponding to the rectangular image into a plurality of regions which are processing units for which a predetermined calculation is performed. The apparatus divides the two-dimensional region into different regions by one or more straight line such that a difference in summations of the numbers of fragments included in the regions after the division becomes a minimum.

Information processing apparatus, control method, and storage medium for defining tiles with limited numbers of fragments

An information processing apparatus analyzes an importance distribution in a render target range for which a three-dimensional scene is to be rendered in a perspective for generating a map for use in rendering the three-dimensional scene. The apparatus acquires eigenvectors of the importance distribution by performing principal component analysis on the distribution. In a case where the eigenvectors of the distribution satisfies a predetermined condition, the apparatus rotates the importance distribution such that a direction defined by the eigenvector is to be a predetermined direction, and determines the number of pixels assigned to each partial region based on the rotated distribution.

Information processing apparatus, generation method, and storage medium

An information processing apparatus acquires a low resolution indirect illumination buffer having a resolution less than an indirect illumination buffer information used for specifying a specular reflection direction in a position of an object and a reflection characteristic of the object in a 3D scene corresponding to each pixel of the indirect illumination buffer to be generated. Then it generates an indirect illumination buffer by increasing the resolution of the low resolution indirect illumination buffer. Here the apparatus generates the pixels of the indirect illumination buffer generated by the increase in resolution based on at least the level of similarity of the specular reflection lobes of objects corresponding to the pixels and objects corresponding to the pixels of the low resolution indirect illumination buffer used for the generation of the pixels.

Information processing apparatus, method of controlling the same, and storage medium

A prediction method generates a fragment number map having a predetermined number of pixels and a mipmap of the fragment number map, and for a pixel of one layer in the mipmap, derives an estimated number of fragments included on average on one light path in a case where ray-bundles for a light transport computation are defined for a corresponding region in a 3D scene corresponding to the pixel, and outputs, as a predicted number of ray-bundle light paths for the computation storable in a predetermined memory region for a pixel of one layer, a value obtained by dividing the size of the memory region by this value. The method derives an estimated number of fragments by adding a compensation value corresponding to a layer of the pixels in the number of fragments which is a pixel value of one pixel.

Prediction method, generation method and storage medium

A shading method and computer graphics system are provided in which a path of light is reflected at a given object from a virtual light source. The path of light reaches a given eye point is sampled. A distribution function for a surface of the object is obtained using the sampled path of light, and arithmetic processing is performed such that a maximum value of the distribution function is less than or equal to a predetermined value. In this regard, an estimated specular roughness of the surface of the object is obtained by setting the distribution function to be less than or equal to the predetermined value.

Growing community of inventors

Tokyo, Japan

Yusuke Tokuyoshi