How can I create this type of gradient in Substance Designer?

HammerB

Hi, Im making some decoration for a texture, and I want it to be full substance designer(no Zbrush nor 3rd party software) and I have this shape 


I'm still buildint the heightmap I want to make it gradient-y (not flat) so the sides marked in red should be the start of the gradient (white), the blue-marked curved side the end of it (black)

 but the thing is...I'm having a really hard time blending gradients, I never get then clean result.
The tricky part is that it isn just a directional flat gradient, but it has a curve along the red line, so at the bottom, yes, i could use a regular ol' linear gradient, but as it goes up it curves until its vertical. How can i do that keeping control?

 I would appreciate some advice from the wise magicians that populate this forum.

poopipe

How did you make the shape in the first place? 

HammerB

Combining shapes, adding and subtracting.

Zack Maxwell

Use a curve node to control the angle of the gradient.

poopipe

A curve node won't allow you to bend the gradient. 

You could probably get some useful information off the shapes you used to construct the final shape.   
A distance applied to the shape that forms the red edge masked by the final shape is probably a good starting point

HammerB

poopipe said:

A curve node won't allow you to bend the gradient. 

You could probably get some useful information off the shapes you used to construct the final shape.   
A distance applied to the shape that forms the red edge masked by the final shape is probably a good starting point

That might a good solution! I tried to mirror de shape, use a bevel node, and subtract to the bevel the inner shape that makes the red edge. It sorta did the trick, but I will try yours.

It amazes me that SD still has no way of doing this kind of thing, some kind of gradient along a spline or similar.