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Clarify cloverleaf computation
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@jstone-lucasfilm
jstone-lucasfilm committed Jul 24, 2023
1 parent 1d8f6af commit 2a35036
Showing 1 changed file with 38 additions and 61 deletions.
99 changes: 38 additions & 61 deletions libraries/stdlib/stdlib_ng.mtlx
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Original file line number Diff line number Diff line change
Expand Up @@ -1450,89 +1450,66 @@
Returns 1 if sample is inside a cloverleaf shape inscribed by a circle defined by center and radius; otherwise returns 0.
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<nodegraph name="NG_cloverleaf_float" nodedef="ND_cloverleaf_float">
<circle name="circle" type="float">
<input name="sample" type="vector2" nodename="coord1" />
<input name="center" type="vector2" interfacename="center" />
<input name="radius" type="float" interfacename="radius" />
</circle>
<add name="coord1" type="vector2">
<input name="in1" type="vector2" interfacename="sample" />
<input name="in2" type="vector2" nodename="shift_coord1" />
</add>
<add name="coord2" type="vector2">
<add name="sample_double" type="vector2">
<input name="in1" type="vector2" interfacename="sample" />
<input name="in2" type="vector2" nodename="shift_coord2" />
<input name="in2" type="vector2" interfacename="sample" />
</add>
<add name="coord3" type="vector2">
<input name="in1" type="vector2" interfacename="sample" />
<input name="in2" type="vector2" nodename="shift_coord3" />
</add>
<add name="coord4" type="vector2">
<input name="in1" type="vector2" interfacename="sample" />
<input name="in2" type="vector2" nodename="shift_coord4" />
<add name="sample_add" type="vector2">
<input name="in1" type="vector2" nodename="sample_double" />
<input name="in2" type="float" interfacename="radius" />
</add>
<subtract name="sample_subtract" type="vector2">
<input name="in1" type="vector2" nodename="sample_double" />
<input name="in2" type="float" interfacename="radius" />
</subtract>
<combine2 name="coord1" type="vector2">
<input name="in1" type="float" nodename="sample_add" channels="x" />
<input name="in2" type="float" nodename="sample_double" channels="y" />
</combine2>
<combine2 name="coord2" type="vector2">
<input name="in1" type="float" nodename="sample_subtract" channels="x" />
<input name="in2" type="float" nodename="sample_double" channels="y" />
</combine2>
<combine2 name="coord3" type="vector2">
<input name="in1" type="float" nodename="sample_double" channels="x" />
<input name="in2" type="float" nodename="sample_subtract" channels="y" />
</combine2>
<combine2 name="coord4" type="vector2">
<input name="in1" type="float" nodename="sample_double" channels="x" />
<input name="in2" type="float" nodename="sample_add" channels="y" />
</combine2>
<circle name="circle1" type="float">
<input name="sample" type="vector2" nodename="coord2" />
<input name="sample" type="vector2" nodename="coord1" />
<input name="center" type="vector2" interfacename="center" />
<input name="radius" type="float" interfacename="radius" />
</circle>
<circle name="circle2" type="float">
<input name="sample" type="vector2" nodename="coord3" />
<input name="sample" type="vector2" nodename="coord2" />
<input name="center" type="vector2" interfacename="center" />
<input name="radius" type="float" interfacename="radius" />
</circle>
<circle name="circle3" type="float">
<input name="sample" type="vector2" nodename="coord3" />
<input name="center" type="vector2" interfacename="center" />
<input name="radius" type="float" interfacename="radius" />
</circle>
<circle name="circle4" type="float">
<input name="sample" type="vector2" nodename="coord4" />
<input name="center" type="vector2" interfacename="center" />
<input name="radius" type="float" interfacename="radius" />
</circle>
<max name="max1" type="float">
<input name="in1" type="float" nodename="circle" />
<input name="in2" type="float" nodename="circle1" />
<input name="in1" type="float" nodename="circle1" />
<input name="in2" type="float" nodename="circle2" />
</max>
<max name="max2" type="float">
<input name="in1" type="float" nodename="circle3" />
<input name="in2" type="float" nodename="circle4" />
</max>
<max name="max" type="float">
<input name="in1" type="float" nodename="max1" />
<input name="in2" type="float" nodename="max2" />
</max>
<max name="max2" type="float">
<input name="in1" type="float" nodename="circle2" />
<input name="in2" type="float" nodename="circle3" />
</max>
<separate2 name="separate_sample" type="multioutput">
<input name="in" type="vector2" interfacename="sample" />
</separate2>
<combine2 name="shift_coord1" type="vector2">
<input name="in1" type="float" nodename="add_rX" />
<input name="in2" type="float" nodename="separate_sample" output="outy" />
</combine2>
<combine2 name="shift_coord2" type="vector2">
<input name="in1" type="float" nodename="subtract_rX" />
<input name="in2" type="float" nodename="separate_sample" output="outy" />
</combine2>
<combine2 name="shift_coord3" type="vector2">
<input name="in1" type="float" nodename="separate_sample" output="outx" />
<input name="in2" type="float" nodename="add_rY" />
</combine2>
<combine2 name="shift_coord4" type="vector2">
<input name="in1" type="float" nodename="separate_sample" output="outx" />
<input name="in2" type="float" nodename="subtract_rY" />
</combine2>
<add name="add_rX" type="float">
<input name="in1" type="float" nodename="separate_sample" output="outx" />
<input name="in2" type="float" interfacename="radius" />
</add>
<add name="add_rY" type="float">
<input name="in1" type="float" nodename="separate_sample" output="outy" />
<input name="in2" type="float" interfacename="radius" />
</add>
<subtract name="subtract_rX" type="float">
<input name="in1" type="float" nodename="separate_sample" output="outx" />
<input name="in2" type="float" interfacename="radius" />
</subtract>
<subtract name="subtract_rY" type="float">
<input name="in1" type="float" nodename="separate_sample" output="outy" />
<input name="in2" type="float" interfacename="radius" />
</subtract>
<output name="out" type="float" nodename="max" />
</nodegraph>

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