85         fragBuilder->codeAppend("half4 texColor;");  in onEmitCode()
89         fragBuilder->codeAppend("half distance = "  in onEmitCode()
96         fragBuilder->codeAppend("half afwidth;");  in onEmitCode()
122             fragBuilder->codeAppend("afwidth = abs(" SK_DistanceFieldAAFactor "*st_grad_len);");  in onEmitCode()
127             fragBuilder->codeAppend("half2 dist_grad = half2(float2(dFdx(distance), "  in onEmitCode()
131             fragBuilder->codeAppend("half dg_len2 = dot(dist_grad, dist_grad);");  in onEmitCode()
132             fragBuilder->codeAppend("if (dg_len2 < 0.0001) {");  in onEmitCode()
133             fragBuilder->codeAppend("dist_grad = half2(0.7071, 0.7071);");  in onEmitCode()
134             fragBuilder->codeAppend("} else {");  in onEmitCode()
135             fragBuilder->codeAppend("dist_grad = dist_grad*half(inversesqrt(dg_len2));");  in onEmitCode()
136             fragBuilder->codeAppend("}");  in onEmitCode()
140             fragBuilder->codeAppend("half2 grad = half2(dist_grad.x*Jdx.x + dist_grad.y*Jdy.x,");  in onEmitCode()
141             fragBuilder->codeAppend("                 dist_grad.x*Jdx.y + dist_grad.y*Jdy.y);");  in onEmitCode()
144             fragBuilder->codeAppend("afwidth = " SK_DistanceFieldAAFactor "*length(grad);");  in onEmitCode()
148             fragBuilder->codeAppend("half val = distance > 0 ? 1.0 : 0.0;");  in onEmitCode()
153             fragBuilder->codeAppend(  in onEmitCode()
156             fragBuilder->codeAppend("half val = smoothstep(-afwidth, afwidth, distance);");  in onEmitCode()
378         fragBuilder->codeAppend("half4 texColor;");  in onEmitCode()
382         fragBuilder->codeAppend("half distance = "  in onEmitCode()
385         fragBuilder->codeAppend("half afwidth;");  in onEmitCode()
415             fragBuilder->codeAppend("afwidth = abs(" SK_DistanceFieldAAFactor "*st_grad_len);");  in onEmitCode()
420             fragBuilder->codeAppend("half2 dist_grad = half2(dFdx(distance), "  in onEmitCode()
424             fragBuilder->codeAppend("half dg_len2 = dot(dist_grad, dist_grad);");  in onEmitCode()
425             fragBuilder->codeAppend("if (dg_len2 < 0.0001) {");  in onEmitCode()
426             fragBuilder->codeAppend("dist_grad = half2(0.7071, 0.7071);");  in onEmitCode()
427             fragBuilder->codeAppend("} else {");  in onEmitCode()
428             fragBuilder->codeAppend("dist_grad = dist_grad*half(inversesqrt(dg_len2));");  in onEmitCode()
429             fragBuilder->codeAppend("}");  in onEmitCode()
433             fragBuilder->codeAppend("half2 grad = half2(dist_grad.x*Jdx.x + dist_grad.y*Jdy.x,");  in onEmitCode()
434             fragBuilder->codeAppend("                   dist_grad.x*Jdx.y + dist_grad.y*Jdy.y);");  in onEmitCode()
437             fragBuilder->codeAppend("afwidth = " SK_DistanceFieldAAFactor "*length(grad);");  in onEmitCode()
443             fragBuilder->codeAppend(  in onEmitCode()
446             fragBuilder->codeAppend("half val = smoothstep(-afwidth, afwidth, distance);");  in onEmitCode()
679             fragBuilder->codeAppend("half st_grad_len = length(st_grad);");  in onEmitCode()
683             fragBuilder->codeAppend("half2 Jdx = half2(dFdx(st));");  in onEmitCode()
684             fragBuilder->codeAppend("half2 Jdy = half2(dFdy(st));");  in onEmitCode()
689         fragBuilder->codeAppend("half4 texColor;");  in onEmitCode()
694         fragBuilder->codeAppend("half3 distance;");  in onEmitCode()
695         fragBuilder->codeAppend("distance.y = texColor.r;");  in onEmitCode()
697         fragBuilder->codeAppend("half2 uv_adjusted = half2(uv) - offset;");  in onEmitCode()
700         fragBuilder->codeAppend("distance.x = texColor.r;");  in onEmitCode()
702         fragBuilder->codeAppend("uv_adjusted = half2(uv) + offset;");  in onEmitCode()
705         fragBuilder->codeAppend("distance.z = texColor.r;");  in onEmitCode()
707         fragBuilder->codeAppend("distance = "  in onEmitCode()
721         fragBuilder->codeAppend("half afwidth;");  in onEmitCode()
729             fragBuilder->codeAppend("afwidth = " SK_DistanceFieldAAFactor "*st_grad_len;");  in onEmitCode()
734             fragBuilder->codeAppend("half2 dist_grad = half2(half(dFdx(distance.r)), "  in onEmitCode()
738             fragBuilder->codeAppend("half dg_len2 = dot(dist_grad, dist_grad);");  in onEmitCode()
739             fragBuilder->codeAppend("if (dg_len2 < 0.0001) {");  in onEmitCode()
740             fragBuilder->codeAppend("dist_grad = half2(0.7071, 0.7071);");  in onEmitCode()
741             fragBuilder->codeAppend("} else {");  in onEmitCode()
742             fragBuilder->codeAppend("dist_grad = dist_grad*half(inversesqrt(dg_len2));");  in onEmitCode()
743             fragBuilder->codeAppend("}");  in onEmitCode()
744             fragBuilder->codeAppend("half2 grad = half2(dist_grad.x*Jdx.x + dist_grad.y*Jdy.x,");  in onEmitCode()
745             fragBuilder->codeAppend("                 dist_grad.x*Jdx.y + dist_grad.y*Jdy.y);");  in onEmitCode()
748             fragBuilder->codeAppend("afwidth = " SK_DistanceFieldAAFactor "*length(grad);");  in onEmitCode()