File:Composition in 3D generated with the opensimplex noise.png
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[edit]DescriptionComposition in 3D generated with the opensimplex noise.png |
English: Composition is generated in Python. Nodes of bezier curves are following a vector field generated with the open simplex noise algorithm. Scene is ray-traced with PlotOptiX package. |
Date | |
Source | Own work |
Author | Rob su |
Licensing
[edit]I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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import numpy as np
# docs, examples: https://plotoptix.rnd.team
from plotoptix import TkOptiX
from plotoptix.materials import m_plastic
from plotoptix.utils import simplex
b = 7000 # number of curves
n = 60 # number pf nodes per curve
dt = 0.1 # nodes distance
ofs = 50 * np.random.rand(3)
inp = 5 * np.random.rand(b, 3, 4) - 2.5
for c in range(b):
inp[c,1:,:3] = inp[c,0,:3]
inp[c,:,0] *= 1.75 # more spread in X
inp[c,:,3] = ofs # sync the 4'th dim of the noise
pos = np.zeros((b, n, 3), dtype=np.float32)
r = np.zeros((b, n), dtype=np.float32)
rnd = simplex(inp)
for t in range(n):
rt = 2.0 * (t+1) / (n+2) - 1
rt = 1 - rt*rt
r[:,t] = 0.07 * rt * rt
for c in range(b):
mag = np.linalg.norm(rnd[c])
r[c,t] *= 0.2 + 0.8 * mag # modulate thickness
rnd[c] = (0.08/mag) * rnd[c] # normalize and scale the step size
inp[c,:,:3] += rnd[c] # step in the field direction
pos[c,t] = inp[c,0,:3]
rnd = simplex(inp, rnd) # calculate noise at the next pos
rt = TkOptiX(start_now=False)
rt.set_param(
min_accumulation_step=1,
max_accumulation_frames=200,
rt_timeout=100000 # accept lower fps
)
exposure = 1.2; gamma = 1.8
rt.set_float("tonemap_exposure", exposure)
rt.set_float("tonemap_gamma", gamma)
rt.set_float("denoiser_blend", 0.25)
rt.add_postproc("Denoiser")
rt.setup_material("plastic", m_plastic)
for c in range(b):
if np.random.uniform() < 0.05:
rt.set_data("c"+str(c), pos=pos[c], r=1.1*r[c], c=[0.4, 0, 0], geom="BezierChain")
else:
rt.set_data("c"+str(c), pos=pos[c], r=r[c], c=0.94, geom="BezierChain", mat="plastic")
rt.setup_camera("dof_cam", eye=[0, 0, 12], target=[0, 0, 0], fov=57, focal_scale=0.7, cam_type="DoF")
rt.setup_light("l1", pos=[8, -3, 13], color=1.5*np.array([0.99, 0.97, 0.93]), radius=5)
rt.setup_light("l2", pos=[-17, -7, 5], u=[0, 0, -10], v=[0, 14, 0], color=1*np.array([0.25, 0.28, 0.35]), light_type="Parallelogram")
rt.set_ambient([0.05, 0.07, 0.09])
rt.set_background(0)
rt.show()
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 16:45, 23 May 2020 | 1,504 × 2,160 (3.3 MB) | Rob su (talk | contribs) | Uploaded own work with UploadWizard |
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Width | 3,350 px |
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Height | 2,160 px |
Pixel composition | RGB |
Number of components | 3 |
Horizontal resolution | 96 dpi |
Vertical resolution | 96 dpi |
Bits per component |
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Date and time of digitizing | 18:53, 23 May 2020 |
File change date and time | 19:35, 23 May 2020 |
Date metadata was last modified | 19:35, 23 May 2020 |
Unique ID of original document | xmp.did:6d3788a7-1c41-be42-92d2-bf8f49bdd77e |