Distance Field water foam

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Distance Field Foam

Vectortoradialvalue, DistanceFieldGradient used for U channel and
DistanceToNearestSurface used for V.

I thought about how texture coordinates worked and how VectorToRadialValue worked. Both being gradients in R(U) and G(V), I had a theory about creating coordinates based on using Distancetonearestsurface node as G(V) channel and have VectorToRadialValue or Distancefieldgradient node as the R(U) channel. I was initially going to use the DistanceFieldGradient node that I learned about when making the distance field flow map. This is because the node had that Texture coordinate look to it but it adds a lot to the shader instructions so I went with VectorToRadialValue node. I extracted and used maths for the R channel from VectorToRadialValue and it produced the coordinates I wanted. I then added this coordinate to the noise based foam I made earlier using Alex Vinogradov's approach. I later decided to add Distancefieldgradient node just to see if it produced a slightly different result but it still relied on some of the maths from VectorToRadialValue to make it fully work. I added Switch parameter in case I decide to opt for the cheaper one.





Comments

  1. Nightfrontier1 November 2019 at 08:53

    Hey,

    I've been trying to achieve the exact same thing you do here for the longest time and I was hoping to reach out to you for some pointers. Any chance I can get in contact with you? I don't see any e-mail or way of contacting you on the blog. Also big thanks for all the great posts on the blog, they are very insightful.

    ReplyDelete
  2. Courvee9 March 2020 at 13:01

    Same here. I can not get it work properly...

    ReplyDelete

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