Nvidia Corporation

Mental Images Gmbh

Hakan Andersson

Steven Parker

Lutz Kettner

Matthias Raab

Daniel Seibert

Jan Jordan

Rajko Yasui-Schoeffel

Robert Hoedicke

Andy Kopra

Michael Beck

A material representation data structure and a method of representing a material for digital image synthesis. The data structure may be embodied in a graphics processing subsystem, including: (1) a memory configured to store a material representation data structure according to which a material is declaratively represented by a property indicative of an interaction between the material and light, and (2) a processor operable to gain access to the memory and employ the property in a rendering procedure defined independent of the material representation data structure and designed to effect the interaction.

Material representation data structure and method of representing a material for digital image synthesis

Methods, systems, apparatus, and computer program/software code products, operable in a computer graphics system designed to render images and to apply shading to images, enable the following: during rendering of an image, modifying the shading normal in the region of a corner of an object in the image, such that when shading is applied to the image, the shaded image is capable of providing to a human viewer, when viewing the corner in the image, the appearance or visual illusion of a rounded corner, wherein the modifying comprises: calculating an amount of modification to be applied to an original shading normal in the region of the corner to simulate the appearance of a given fillet radius R, the calculating comprising: interrogating surfaces within a distance R of the corner for their shading normal, and calculating a new normal that is a weighted blend between the shading normal of the original surface and the shading normal of the interrogated neighboring surface, thereby, by the shading effect, to simulate at render-time a rounding by varying the shading normal, creating a variation of the surface normal consistent with the appearance the object would have had, had it actually been rounded.

Computer graphics methods and systems for generating images with rounded corners

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Eskilstuna, Sweden

Hakan Andersson