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Water drops on surface


draganbaja

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You don't need FLIP at all. All you need is a simple setup to move a point along the surface flow which can be calculated with the SDF gradient and some cross products to get your up and right directions. Then you can add some randomness by rotating around the gradient direction and add a trail sop to get the streak. Assign pscale based off of ptnum/numpt and VDB from particles the result with an SDF smooth and voila. :)  I was able to get this result in a couple hours and while it needs tweaking it should get you started. 

 

drip.jpg

drips.001.hipnc

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On 2016/9/2 at 2:38 AM, stevegh said:

You don't need FLIP at all. All you need is a simple setup to move a point along the surface flow which can be calculated with the SDF gradient and some cross products to get your up and right directions. Then you can add some randomness by rotating around the gradient direction and add a trail sop to get the streak. Assign pscale based off of ptnum/numpt and VDB from particles the result with an SDF smooth and voila. :)  I was able to get this result in a couple hours and while it needs tweaking it should get you started. 

 

drip.jpg

drips.001.hipnc

thanks~

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