A brush can either be a simple color or a gradient or even an image called texture. The material defines how much light is reflected for a specific angle and the brush defines the color. The engine determines the color for every pixel by calculating the amount of light that is reflected by any light sources to the projection surface by the objects in the 3D space.Īll surfaces of objects have a material and a brush. This projection is rendered into an bitmap by the 3D rendering engine. ![]() The picture is a projection of the object to a planar surface. Because our screen is only two dimensional, we define a camera that takes a picture of the object. The basic idea of creating 3D graphics is to have a three dimensional model of an object.
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