Lines Matching defs:coverage
325 /* compute coverage for each pixel in span */
330 GLfloat coverage;
334 /* compute partial coverage */
335 coverage = 1.0F - (dist2 - rmin2) * cscale;
338 /* full coverage */
339 coverage = 1.0F;
344 /* zero coverage - fragment outside the radius */
345 coverage = 0.0;
348 span.array->coverage[ix - xmin] = coverage;
