native animations #180

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1. etjones commented on Jun 1, 2021

   

   etjones

   on Jun 1, 2021

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   Oh shit, this could make animation so much better than the hack I have in place now! Dude, you're improving all of this way faster than I can keep up. Nice work.
2. jeff-dh commented on Jun 1, 2021

   

   jeff-dh

   on Jun 1, 2021

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   physics:

   import numpy as np
   
   from solid import *
   
   ball_radius = 100
   
   def get_bouncing_ball_data(pos=np.array([0.0, 0.0, 0.0]), vel=np.array([5.0, 5.0, 200.0])):
       data = []
       gravity = np.array([0.0, 0.0, -8.0])
       for t in range(1000):
           vel = (vel + gravity) * 0.995
           pos += vel
           if pos[2] < ball_radius:
               vel[2] = vel[2] * -1
               pos[2] = ball_radius
   
           data.append(pos.tolist())
   
       return data
   
   ball_data = f'bouncing_ball_data = {get_bouncing_ball_data()};'
   
   ball_pos_over_time = scad_inline("bouncing_ball_data[$t * 1000]")
   
   ball = translate(ball_pos_over_time)(sphere(ball_radius))
   floor = background(cube([2000, 2000, 0.01]))
   
   scad_render_to_file(ball + floor, file_header=ball_data)

   No clue what this could be good for, but....... I guess it might be possible to plug a -- more complex :-p -- physics engine into it and render animated movies....

   All of this is implemented and working with exp_solid and these snippets are in the examples, check it out...

   (but this should also work with master with little effort -> scad_inline from #178)

   PS: anybody an idea where to get the vitamins for a 4d printer? 😛
3. jeff-dh

   added a commit that references this issue on Jun 1, 2021

   added ScadInterface (SolidCode#181, SolidCode#180, SolidCode#178, Sol…

   ...

   d51b687