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摘要
En 中文
We present a method for resolution independent rendering of paths and bounded regions, defined by quadratic and cubic spline curves, that leverages the parallelism of programmable graphics hardware to achieve high performance. A simple implicit equation for a parametric curve is found in a space that can be thought of as an analog to texture space. The image of a curve's Bezier control points are found in this space and assigned to the control points as texture coordinates. When the triangle(s) corresponding to the Bezier curve control hull are rendered, a pixel shader program evaluates the implicit equation for a pixel's interpolated texture coordinates to determine an inside/outside test for the curve. We extend our technique to handle anti-aliasing of boundaries. We also construct a vector image from mosaics of triangulated Bezier control points and show how to deform such images to create resolution independent texture on three dimensional objects.
Keyword:
curve rendering
resolution independence
vector representations
graphics hardware algorithms
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9.5
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4.7K
被引数:
3.6W
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