Mishari
Mishari
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Need particles to stop tilting in simulation Sept. 23, 2009, 4:53 a.m.
I'm trying to add this in my POP network. So I assume that it's simulation.
Tho I'm a bit confused now as I can't add a point SOP here. Still, will keep trying to figure out your instruction I've only been doing CG for about a week and it's been almost 10 years since I touched geometry at school
Tho I'm a bit confused now as I can't add a point SOP here. Still, will keep trying to figure out your instruction I've only been doing CG for about a week and it's been almost 10 years since I touched geometry at school
Need particles to stop tilting in simulation Sept. 22, 2009, 10:36 a.m.
I'm not too sure how to add a normal in Houdini
but for now, I've add an up vector to the bottom of my POP Network, changed the up vector type to vector and added the following expression:
cross(vector3($NX,$NY,$NZ),vector3($VX, $VY, $VZ))
Which gives an error “undefined variable” I'll keep working on it, but any help will be appreciated
but for now, I've add an up vector to the bottom of my POP Network, changed the up vector type to vector and added the following expression:
cross(vector3($NX,$NY,$NZ),vector3($VX, $VY, $VZ))
Which gives an error “undefined variable” I'll keep working on it, but any help will be appreciated
Need particles to stop tilting in simulation Sept. 22, 2009, 9:04 a.m.
Hi,
I have a simulation of particles orbiting the Y axis looking at a point (think globe) which is then copied to a geometry of a box.
What happens is that when I run the simulation, the particles tilt in the direction of it's movement. The only tilt I want is for it to look at a point. Can anyone give me pointers as to how to achieve this effect?
I have a simulation of particles orbiting the Y axis looking at a point (think globe) which is then copied to a geometry of a box.
What happens is that when I run the simulation, the particles tilt in the direction of it's movement. The only tilt I want is for it to look at a point. Can anyone give me pointers as to how to achieve this effect?