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While the direct illumination is generally best sampled using eye-based ray tracing, certain indirect effects can benefit from rays generated from the lights. Caustics are bright patterns caused by the focusing of light off a wide reflective region onto a narrow area of (near-)diffuse surface. An algorithm that casts rays directly from lights ...
The best-known example is the ADM formalism. [174] These decompositions show that the spacetime evolution equations of general relativity are well-behaved: solutions always exist , and are uniquely defined, once suitable initial conditions have been specified. [ 175 ]
Linux (/ ˈ l ɪ n ʊ k s /, LIN-uuks) [15] is a family of open-source Unix-like operating systems based on the Linux kernel, [16] an operating system kernel first released on September 17, 1991, by Linus Torvalds.
After the Second World War, fabrics like nylon, corfam, orlon, terylene, lurex and spandex were promoted as cheap, easy to dry, and wrinkle-free. The synthetic fabrics of the 1960s allowed space age fashion designers such as the late Pierre Cardin to design garments with bold shapes and a plastic texture. [22]