| 摘要 |
PCT No. PCT/JP96/01837 Sec. 371 Date Feb. 28, 1997 Sec. 102(e) Date Feb. 28, 1997 PCT Filed Jul. 3, 1996 PCT Pub. No. WO97/02546 PCT Pub. Date Jan. 23, 1997A computer graphics circuit for rendering light-reflected gaseous object comprising a Gaussian random number generator, a parametric free curve interpolation circuit, a primitive-normal computation circuit, a shading circuit and frame buffer. The primitive of gaseous object is generated by a random number generator and applied these primitives to shading circuit to calculate the light-reflection after defining a normal of each primitive. The primitive is distributed centering around parametric free curve. The primitive stored into frame buffer is read synchronizing with video scanning and synthesized with surface-defined object using a z comparator, amultiplexer, multipliers and filters for defining transparency effect between gaseous object and surface-defined object.
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