Computer graphics
AssigneeClearspeed Technology Limited
InventorJack Greasley
Life of this patent
Estimating the term…
Abstract
A method for producing an image of a scene including a refractive object includes generating an illumination map, representing the scene. The method creates a first bitmap for the refractive object, the bitmap comprising a plurality of pixels; each of said pixels in the first bitmap is mapped to a pixel in a second bitmap, the mapping representing the effect of refraction on light passing through the object; and the effects of the light illuminating the pixels in the first bitmap are added into said second bitmap.
Claims6
A method of generating an illumination map, representing a scene including at least one refractive object, the method comprising:
- for one or more light source, creating a first bitmap for the refractive object, the bitmap comprising a plurality of pixels;
- for each of a lid pixels in the first bitmap, mapping said pixel to a pixel in a second bitmap, the mapping representing the effect of refraction of light passing through the object;
- and
- adding the effects of the mappings in said second bitmap to represent the effect of the refractive object.
Dependencies are inferred from the claim text.