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Lines Matching refs:alphaStep

379          span.alphaStep = SignedFloatToFixed(span.attrStepX[FRAG_ATTRIB_COL0][3]);
393 	 span.alphaStep = 0;
751             fdaInner = fdaOuter + span.alphaStep;
816                   CLAMP_INTERPOLANT(alpha, alphaStep, len);