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/******************************************************************************
* Copyright 2024 NVIDIA Corporation. All rights reserved. *
******************************************************************************
Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
to any person obtaining a copy of the sample definition code that uses our
Material Definition Language (the "MDL Materials"), to reproduce and distribute
the MDL Materials, including without limitation the rights to use, copy, merge,
publish, distribute, and sell modified and unmodified copies of the MDL
Materials, and to permit persons to whom the MDL Materials is furnished to do
so, in all cases solely for use with NVIDIA's Material Definition Language,
subject to the following further conditions:
1. The above copyright notices, this list of conditions, and the disclaimer
that follows shall be retained in all copies of one or more of the MDL
Materials, including in any software with which the MDL Materials are bundled,
redistributed, and/or sold, and included either as stand-alone text files,
human-readable headers or in the appropriate machine-readable metadata fields
within text or binary files as long as those fields can be easily viewed by the
user, as applicable.
2. The name of NVIDIA shall not be used to promote, endorse or advertise any
Modified Version without specific prior written permission, except a) to comply
with the notice requirements otherwise contained herein; or b) to acknowledge
the contribution(s) of NVIDIA.
THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR
ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL,
INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
*/
mdl 1.6;
import ::df::*;
import ::anno::*;
import ::base::*;
import ::math::*;
import ::nvidia::core_definitions::thick_glass;
import ::state::normal;
const string COPYRIGHT =
" Copyright 2024 NVIDIA Corporation. All rights reserved.\n"
" MDL MATERIALS ARE PROVIDED PURSUANT TO AN END USER LICENSE AGREEMENT,\n"
" WHICH WAS ACCEPTED IN ORDER TO GAIN ACCESS TO THIS FILE. IN PARTICULAR,\n"
" THE MDL MATERIALS ARE PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\n"
" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF\n"
" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF\n"
" COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA\n"
" CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY\n"
" GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN\n"
" AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR\n"
" INABILITY TO USE THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.\n";
material gem_definition(
color transmission_color = color(1.0),
uniform color glass_color = color(.95),
float roughness = 0.0,
uniform float volume_ior = 1.4f,
uniform bool dispersion = true,
uniform float abbe_number = 1.4f,
uniform float base_thickness = .1,
float3 normal = ::state::normal()
)
[[
::anno::hidden()
]]
= let{
bsdf glossy_bsdf = ::df::simple_glossy_bsdf(
mode: ::df::scatter_reflect,
tint: color(1.),
roughness_u: roughness
);
bsdf glossy_bsdf_transmission = ::df::simple_glossy_bsdf(
mode: ::df::scatter_transmit,
tint: transmission_color,
roughness_u: roughness
);
} in material(
thin_walled: false,
surface: material_surface(
::df::weighted_layer(
normal: normal,
weight: 1.,
layer: ::df::color_fresnel_layer(
layer: glossy_bsdf,
base: glossy_bsdf_transmission,
ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
)
)
),
volume: material_volume(
absorption_coefficient: (base_thickness <= 0)? color(0): ::math::log(glass_color) / -base_thickness
),
ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
);
export material Zircon(
uniform color volume_color = color ( 0.194618f , 0.879622f , 1.f)
[[
::anno::display_name("Volume Color"),
::anno::description("Color effect for volume of the object reached at transmission distance."),
::anno::in_group("Appearance")
]],
uniform float clarity = 1.f
[[
::anno::display_name("Clarity"),
::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
::anno::soft_range(0.1,10.0),
::anno::in_group("Appearance")
]],
uniform bool dispersion = true
[[
::anno::display_name("Dispersion"),
::anno::description("Enable or disable the dispersion."),
::anno::in_group("Advanced")
]])
[[
::anno::display_name("Zircon"),
::anno::description("Zircon gem material (Default values based on 2cm stone size.)"),
::anno::author("NVIDIA vMaterials"),
::anno::contributor("Rüdiger Raab"),
::anno::contributor("Maik Rohland"),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Zircon.Zircon.png"),
::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "zircon", "purple"))
]] = gem_definition(
transmission_color: color ( 0.5843138f , 0.945098f , 1.f),
glass_color: volume_color,
roughness: 0.f,
volume_ior: 1.92f,
dispersion: dispersion,
abbe_number: 33.54f,
base_thickness: clarity * 0.05f,
normal: ::state::normal ());
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