Method and apparatus for providing refractive transparency in selected areas of video displays
AssigneesSony Corporation, Sony Electronics Inc.
InventorThomas Patrick Dawson
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Abstract
In a selected area of a display defined by a polygon, magnifying is simulated. The selected area may be, for example, a circle simulating a magnifying glass. Textures are represented by texel coordinates U and V, which specify the location of color components within a set of image data. Within the area selected to appear magnified, the present invention perturbs the texel location selection to simulate an angle of refraction in the selected area and offset texel coordinates.
Claims15
A method for rendering an image on a display and producing magnification in the rendered image comprising:
- selecting a set of polygon data to which to apply the magnification special effect;
- retaining eye point δ angle data within the vertex data passed to the a graphics rendering pipeline;
- perturbing each eye point δ angle value at each polygon fragment;
- and
- incorporating perturbed texel angles, where each texel has a U and a V coordinate.
A machine-readable medium that provides instructions which, when executed by a processor, cause said processor to perform operations producing a magnifying special effect in a computer display comprising:
- selecting a set of polygon data to which to apply the magnification special effect;
- retaining eye point δ angle data within the vertex data passed to the graphics rendering pipeline;
- perturbing each eye point δ angle value at each polygon fragment;
- and
- providing perturbed texel angle data.
A graphics pipeline converting polygon data to display data and further comprising a means to modify to texel coordinates according to eye point δ angles to allow a portion of a rendered image generated from the polygon data to have a magnification effect applied.
Dependencies are inferred from the claim text.