85         fragBuilder->codeAppendf("float2 uv = %s;\n", uv.fsIn());  in onEmitCode()
106                                     "*half(dFdx(%s.x)));", st.fsIn());  in onEmitCode()
110                                      "*half(dFdy(%s.y)));", st.fsIn());  in onEmitCode()
120             fragBuilder->codeAppendf("half st_grad_len = length(half2(dFdx(%s)));", st.fsIn());  in onEmitCode()
123             fragBuilder->codeAppendf("half st_grad_len = length(half2(dFdy(%s)));", st.fsIn());  in onEmitCode()
141             fragBuilder->codeAppendf("half2 Jdx = half2(dFdx(%s));", st.fsIn());  in onEmitCode()
142             fragBuilder->codeAppendf("half2 Jdy = half2(dFdy(%s));", st.fsIn());  in onEmitCode()
385         fragBuilder->codeAppendf("float2 uv = %s;", uv.fsIn());  in onEmitCode()
407                                      "*half(dFdx(%s.x)));", st.fsIn());  in onEmitCode()
411                                      "*half(dFdy(%s.y)));", st.fsIn());  in onEmitCode()
420             fragBuilder->codeAppendf("half st_grad_len = half(length(dFdx(%s)));", st.fsIn());  in onEmitCode()
423             fragBuilder->codeAppendf("half st_grad_len = half(length(dFdy(%s)));", st.fsIn());  in onEmitCode()
441             fragBuilder->codeAppendf("half2 Jdx = half2(dFdx(%s));", st.fsIn());  in onEmitCode()
442             fragBuilder->codeAppendf("half2 Jdy = half2(dFdy(%s));", st.fsIn());  in onEmitCode()
675         fragBuilder->codeAppendf("float2 uv = %s;\n", uv.fsIn());  in onEmitCode()
679             fragBuilder->codeAppendf("half st_grad_len = half(abs(dFdx(%s.x)));", st.fsIn());  in onEmitCode()
682             fragBuilder->codeAppendf("half st_grad_len = half(abs(dFdy(%s.y)));", st.fsIn());  in onEmitCode()
685                                      delta.fsIn());  in onEmitCode()
690             fragBuilder->codeAppendf("half2 st_grad = half2(dFdx(%s));", st.fsIn());  in onEmitCode()
691             fragBuilder->codeAppendf("half2 offset = half(%s)*st_grad;", delta.fsIn());  in onEmitCode()
695             fragBuilder->codeAppendf("half2 st_grad = half2(dFdy(%s));", st.fsIn());  in onEmitCode()
697                                      delta.fsIn());  in onEmitCode()
701             fragBuilder->codeAppendf("half2 st = half2(%s);\n", st.fsIn());  in onEmitCode()
705             fragBuilder->codeAppendf("half2 offset = half2(half(%s))*Jdx;", delta.fsIn());  in onEmitCode()