832     fsBuilder->codeAppendf("\n\t\tvec2 %s = floor(%s.xy) * %s;",  in emitCode()
836     fsBuilder->codeAppendf("\n\t\t%s = vec4(0.0);", outputColor);  in emitCode()
840         fsBuilder->codeAppendf("\n\t\tvec2 %s = %s;", stitchData, stitchDataUni);  in emitCode()
843     fsBuilder->codeAppendf("\n\t\tfloat %s = 1.0;", ratio);  in emitCode()
846     fsBuilder->codeAppendf("\n\t\tfor (int octave = 0; octave < %d; ++octave) {", fNumOctaves);  in emitCode()
848     fsBuilder->codeAppendf("\n\t\t\t%s += ", outputColor);  in emitCode()
853         fsBuilder->codeAppendf(  in emitCode()
861         fsBuilder->codeAppendf(  in emitCode()
870         fsBuilder->codeAppendf(")"); // end of "abs("  in emitCode()
872     fsBuilder->codeAppendf(" * %s;", ratio);  in emitCode()
874     fsBuilder->codeAppendf("\n\t\t\t%s *= vec2(2.0);", noiseVec);  in emitCode()
875     fsBuilder->codeAppendf("\n\t\t\t%s *= 0.5;", ratio);  in emitCode()
878         fsBuilder->codeAppendf("\n\t\t\t%s *= vec2(2.0);", stitchData);  in emitCode()
885         fsBuilder->codeAppendf("\n\t\t%s = %s * vec4(0.5) + vec4(0.5);", outputColor, outputColor);  in emitCode()
888     fsBuilder->codeAppendf("\n\t\t%s.a *= %s;", outputColor, alphaUni);  in emitCode()
891     fsBuilder->codeAppendf("\n\t\t%s = clamp(%s, 0.0, 1.0);", outputColor, outputColor);  in emitCode()
894     fsBuilder->codeAppendf("\n\t\t%s = vec4(%s.rgb * %s.aaa, %s.a);\n",  in emitCode()