Volume3d iso

src/traces/isosurface/attributes.js

@@ -236,6 +236,8 @@ colorscaleAttrs('', {
 
     colorbar: colorbarAttrs,
 
+    opacity: surfaceAtts.opacity,
+
     // Flat shaded mode
     flatshading: {
         valType: 'boolean',

src/traces/isosurface/convert.js

@@ -115,7 +115,7 @@ proto.update = function(data) {
         fresnel: data.lighting.fresnel,
         vertexNormalsEpsilon: data.lighting.vertexnormalsepsilon,
         faceNormalsEpsilon: data.lighting.facenormalsepsilon,
-        opacity: 1, // Note: no need to create transparent surfaces
+        opacity: data.opacity,
         contourEnable: data.contour.show,
         contourColor: str2RgbaArray(data.contour.color).slice(0, 3),
         contourWidth: data.contour.width,

src/traces/isosurface/defaults.js

@@ -96,6 +96,7 @@ module.exports = function supplyDefaults(traceIn, traceOut, defaultColor, layout
         'lightposition.y',
         'lightposition.z',
         'flatshading',
+        'opacity'
     ].forEach(function(x) { coerce(x); });
 
     colorscaleDefaults(traceIn, traceOut, layout, coerce, {prefix: '', cLetter: 'c'});