Periapsis Studios
JKerman
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Recent Forum Posts
Simulating hopper crystal growth March 6, 2023, 3:48 p.m.
I'm trying to figure out how to procedurally model bismuth crystals, but I'm kind of a noob at Houdini. Any ideas on how I might do this?
For reference, I HAVE determined the rules of hopper crystal growth, which are as follows:
-layers grow on the exposed edges of the existing crystal
-layers do not grow on the "inner surface" of the hopper
-layers can be different thicknesses, but always grow up and out at a 45-degree angle
-outer edges never intersect each other perfectly
-all edges that do not form a closed loop end in an inward turn
-no convex corner edges are exposed
-the inner termination points of spiral structures either extend inwards until they contact another surface or curve inwards to form a spiral on a different plane
-all spirals turn inwards
-incomplete edges can form on inside layers
-non-rectangular closed edges can exist (but all edges must still be at right angles)
For reference, I HAVE determined the rules of hopper crystal growth, which are as follows:
-layers grow on the exposed edges of the existing crystal
-layers do not grow on the "inner surface" of the hopper
-layers can be different thicknesses, but always grow up and out at a 45-degree angle
-outer edges never intersect each other perfectly
-all edges that do not form a closed loop end in an inward turn
-no convex corner edges are exposed
-the inner termination points of spiral structures either extend inwards until they contact another surface or curve inwards to form a spiral on a different plane
-all spirals turn inwards
-incomplete edges can form on inside layers
-non-rectangular closed edges can exist (but all edges must still be at right angles)
n-body gravity simulation using particles July 30, 2022, 9:57 p.m.
I'm trying to figure out the best way to accurately simulate the impact that formed Earth's moon. The idea would be to use particles/grains that each have their own gravitational force. For simplicity, all particles have the same mass and density. My questions are:
1. What type of simulation would be the most optimal for this?
2. How do I give the particles from one planet an initial velocity?
3. How do I set up the simulation so that every particle exerts a gravitational force (weakens by the square of the distance)?
1. What type of simulation would be the most optimal for this?
2. How do I give the particles from one planet an initial velocity?
3. How do I set up the simulation so that every particle exerts a gravitational force (weakens by the square of the distance)?