[Corrado Carlevaro]

Something like:
A Size
x = linear(effect(“Slider Control”)(“Slider”),0,100,10,5);
[x, value[1]]

B Size
x = linear(effect(“Slider Control”)(“Slider”),0,100,0,20);
[x, value[1]]

?

Corrado

[Corrado Carlevaro]

I think I figured it out (create 2 materials, one with roughness, one without; connect rough one to Refraction input of Ray Switch node, the other one to all other inputs).
The problem is that when I made a render test with 2 materials identical for everything apart roughness I got a slightly bigger render time for the non-rough material, so I’m more confused than before.

Corrado

[Corrado Carlevaro]

Thank you so much for the Use Color/Off!
Ok, I’ll scale the scene up when modeling and back down when rendering; I think scaling the whole scene it’s the best option as it should scale all properties (i.e. Lights falloff radius, Camera focus distance, Material transparency absorption distance etc.).
For anybody interested there’s also an option in Project Settings/View Clipping to reduce clipping of very close objects.
Thank you

Corrado

[Corrado Carlevaro]

I think you should leave the geometry as it is, without new cuts as they could look bad when rendering, and apply the texture with an Alpha channel shaped as a rounded triangle.
Corrado

[Corrado Carlevaro]

If you just need a swinging object, like a pendulum, why bother with all the Dynamics setup? You could just animate the rotation of the pivot (in the ceiling)

C.

[Corrado Carlevaro]

Do you actually need it to be done with Cloth?
Otherwise the simplest solution would be:
1. make a Spline (the rope) with a Spline Dynamics tag on it,
2. add a Constraint tag to attach one end of the Spline to the ceiling (first “belt”),
3. add an Align to Spline tag to your Lamp object to attach it to the other end of the Spline (second “belt”, there’s a tutorial somewhere showing you how to align the lamp to the rope, if I remember correctly they just use a Target tag pointing to the penultimate spline point)
4. put the actual Light inside the Lamp object (as a child, no need of Xpresso)
5. use Wind or other forces to make the Spline swing or
5. put a Collider tag on the “bullet” to make the Lamp swing when it’s actually hit
Hope this helps

Corrado

[Corrado Carlevaro]

I’d use Trapcode Particular plugin in After Effects but if you don’t own that plugin I believe it to be very complicated with AE tools alone. With Particular I’d use a “cloudy” sprite as particle, then I’d move the flux of particles along a Path and then a combination of Wind or Spherical Field to blow the particles away.
With C4D I’d use Thinking Particles

Corrado

[Corrado Carlevaro]

If you use an Xpresso Sample node connected to a Sound Effector you can drive any property using the “strength” output of said Sample node.

Sound Effector -> Sample Node->Range mapper-> Camera Z position (whatever).

In the second examples the displacement happens only once so it can be done manually

Corrado

[Corrado Carlevaro]

Perfect!
Thank you

Corrado

[Corrado Carlevaro]

Visible Light option has to be “None” (no volumetric, no visible)