Computergrafik
Environment Mapping
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Environment texture mapping is a way to simulate mirror reflections on a particular object. For that two render passes are required:
1) Render the scene from the viewpoint of the reflective object and put 6 renderings that represent the 6 parts of a hemicube into a so called cube texture map:
2) Then render the scene a second time from the regular viewpoint and compute reflection vectors for the reflective object. For a particular reflection vector, look up the corresponding scene color in the pre-computed cube map.
← Perspective Shadow Maps | ● | Depth of Field →