Method for adding shadows to objects in computer graphics

Abstract

The invention relates to a method, computer program and device for automatically adding shadows to objects (2; 20) in a computer-generated scene (1). This is performed by calculating a first three dimensional [3D] position for a shadow object 5 (5; 50) based on a 3D position of a first original object (2; 20) and a 3D position of a first light source (3; 30), and adding a shadow object (5; 50) to said scene (1) at said first 3D position.

Description

technical field

[0001] The present invention relates to the field of computer graphics, and in particular to a fast and simple method for shading objects in computer graphics. Background technique

[0002] Generating shadows of objects illuminated by virtual light sources is well known in the field of computer graphics. This feature plays an important role in making computer-generated images realistic by enhancing the perception of depth in the scene. In other words, shadows help you understand how deep objects are and where they are relative to each other in space.

[0003] A scene is typically defined as a number of three-dimensional (3D) objects and a number of light sources. The observer observes the scene from a viewpoint. Observers are sometimes referred to as "cameras". The scene is rendered into an image. In computer graphics, rendering means computing an image. In this context, rendering is the process of computing an image depicting a scene as if viewed from ...

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