Damojan Dawn
damojan
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cant seem to figure out how to animate a attribute randomize May 4, 2024, 4:35 a.m.
i need help animating a scatter point animation, i cant seem to figure it out In Houdini, I've created an emitter geo network for a Flip Fluid simulation. This network acts as the source of the fluid emission. Within this network, I have a sphere connected to a Point Velocity node.
The output of the Point Velocity node feeds into the left side of a Copy to Points node.
On the right side of the Copy to Points node, I have a grid connected to a Scatter node, followed by an Attribute Randomizer node. The Attribute Randomizer node randomly moves each scattered point individually in radnom direction along the X and Z axes.
My goal is to animate this postion shift of scatter points from the original position set by the scatter node to the new position of the same scatter points that the attribute randomiser moved them. How can I achieve this animation?
The output of the Point Velocity node feeds into the left side of a Copy to Points node.
On the right side of the Copy to Points node, I have a grid connected to a Scatter node, followed by an Attribute Randomizer node. The Attribute Randomizer node randomly moves each scattered point individually in radnom direction along the X and Z axes.
My goal is to animate this postion shift of scatter points from the original position set by the scatter node to the new position of the same scatter points that the attribute randomiser moved them. How can I achieve this animation?
Need help to create a shower water simulation April 24, 2024, 1:18 p.m.
Im trying to recreate this shower water siumualtion
https://ibb.co/Y2N8z8B [ibb.co]
i Made a grid to use its points as your particle sources
connected a pop net to it
In the pop net i mainly edited the POP Source
Source Tab: changed geometry source to "use first Context Geometry" to use grid points as sources
Birth Tab: Crank your "Const Birth Rate" a little up and change the "Jitter Birth Time" to negative. This made the points fall a little more unperfect
Attributes Tab: "Initial Velocity" gets setted to Set innitial v and than adjust the variance slightly of x and z. The points will not fall straight downward but a little left and right.
i added an additonal nodes like "popinteract" to get them a bit together if they are close or add some forces to mak their movement a little more random like a small "pop wind" or so
Outside the Popnet i added some additional nodes so the points get geometry.
added a "attributeadjustfloat" with a operation as "set initial" and Pattern Type as "Random" with Min/Max values to my likeing (this randomly changed the size of the "droplets")
added a "vdb from particles" node with quiet a small point radius and smaller voxel size.
added a convert vdb and set it to polygon to get the final geometry.
https://ibb.co/TPxDzsr [ibb.co]
what am i missing, are there any better tips to make it look better
https://ibb.co/Y2N8z8B [ibb.co]
i Made a grid to use its points as your particle sources
connected a pop net to it
In the pop net i mainly edited the POP Source
Source Tab: changed geometry source to "use first Context Geometry" to use grid points as sources
Birth Tab: Crank your "Const Birth Rate" a little up and change the "Jitter Birth Time" to negative. This made the points fall a little more unperfect
Attributes Tab: "Initial Velocity" gets setted to Set innitial v and than adjust the variance slightly of x and z. The points will not fall straight downward but a little left and right.
i added an additonal nodes like "popinteract" to get them a bit together if they are close or add some forces to mak their movement a little more random like a small "pop wind" or so
Outside the Popnet i added some additional nodes so the points get geometry.
added a "attributeadjustfloat" with a operation as "set initial" and Pattern Type as "Random" with Min/Max values to my likeing (this randomly changed the size of the "droplets")
added a "vdb from particles" node with quiet a small point radius and smaller voxel size.
added a convert vdb and set it to polygon to get the final geometry.
https://ibb.co/TPxDzsr [ibb.co]
what am i missing, are there any better tips to make it look better