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373dab2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | # Copyright (C) 2023, Princeton University.
# This source code is licensed under the BSD 3-Clause license found in the LICENSE file in the root directory of this source tree.
# Authors: Alexander Raistrick
import numpy as np
from numpy.random import normal, uniform
from infinigen.core import surface
from infinigen.core.nodes.node_wrangler import Nodes
from infinigen.core.util.color import hsv2rgba
def shader_basic_bsdf(nw):
color = nw.new_node(Nodes.RGB)
color.outputs[0].default_value = hsv2rgba(uniform(0.05, 0.95, 3))
principled_bsdf = nw.new_node(
Nodes.PrincipledBSDF,
input_kwargs={
"Base Color": color,
"Roughness": np.clip(normal(0.6, 0.3), 0.05, 0.95),
"Metallic": uniform(0, 1) if uniform() < 0.3 else 0,
"Subsurface": 0 if uniform() < 0.8 else uniform(0, 0.2),
},
attrs={"subsurface_method": "BURLEY"},
)
material_output = nw.new_node(
Nodes.MaterialOutput, input_kwargs={"Surface": principled_bsdf}
)
return principled_bsdf
def apply(obj, selection=None, **kwargs):
surface.add_material(obj, shader_basic_bsdf, reuse=False)
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