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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 1.5;
import ::tex::*;
import ::anno::*;
import ::base::*;
import ::df::*;
import ::math::*;
import ::state::*;
import ::nvidia::core_definitions::blend_colors;
import ::nvidia::core_definitions::dimension;
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";
const string DESCRITPION =
"A plaster wall material with optional cracks and weathering effect";
float remap(float input, float low_1, float high_1, float low_2, float high_2)
{
return low_2 + ((input - low_1) * (high_2 - low_2))/(high_1 - low_1);
}
float remap_xy_to_0_1(float input, float x, float y)
{
return (input - x)/(y - x);
}
float histogram_scan_small(float input, float width, float position)
{
return ::math::clamp(
remap_xy_to_0_1(input,
::math::lerp(0.0, 1.0 - width, position),
::math::lerp(width, 1.0 , position)),
0.0,
1.0);
}
float3 transform_internal_to_tangent(float3 n)
[[
::anno::hidden()
]]
{
return
n.x* float3(::state::texture_tangent_u(0).x,::state::texture_tangent_v(0).x,::state::normal().x)+
n.y* float3(::state::texture_tangent_u(0).y,::state::texture_tangent_v(0).y,::state::normal().y)+
n.z* float3(::state::texture_tangent_u(0).z,::state::texture_tangent_v(0).z,::state::normal().z);
}
// Returns the normal n in internal space, given n is in tangent space.
float3 transform_tangent_to_internal(float3 n)
[[
::anno::hidden()
]]
{
return ::state::texture_tangent_u(0) * n.x +
::state::texture_tangent_v(0) * n.y +
::state::normal() * n.z ;
}
float3 add_detail_normal(float3 nd = ::state::normal(), float3 n = ::state::normal())
{
// http://blog.selfshadow.com/publications/blending-in-detail/
float3 n_t = transform_internal_to_tangent(n);
float3 nd_t = transform_internal_to_tangent(nd);
n_t=n_t + float3(0.,0.,1.);
nd_t = nd_t * float3(-1.,-1.,1.);
n = n_t*::math::dot(n_t, nd_t)/n_t.z - nd_t;
return ::math::normalize(transform_tangent_to_internal(n));
}
float3 normalmap_normal(
uniform texture_2d texture,
float factor = 1.0,
::base::texture_coordinate_info uvw = ::base::texture_coordinate_info()
)
{
float3 lookup = (::tex::lookup_float3(texture, float2(uvw.position.x, uvw.position.y)) - 0.5) * (factor * 2.0);
return ::math::normalize(uvw.tangent_u * lookup.x + uvw.tangent_v * lookup.y + ::state::normal());
}
::base::texture_coordinate_info vmat_transform(
uniform float2 translation = float2(0.0, 0.0),
uniform float rotation = 0.0,
uniform float2 scaling = float2(1.0, 1.0),
uniform ::base::texture_coordinate_system system = ::base::texture_coordinate_uvw,
uniform int uv_space = 0
)
{
float rotation_rad = (rotation * 3.1415926535897932384626433832f) / 180.f;
float4x4 scale =
float4x4(1.0 /scaling.x, 0. , 0. , 0.,
0. , 1.0 /scaling.y , 0. , 0.,
0. , 0. , 1.0, 0.,
translation.x , translation.y , 0.0, 1.);
float s = ::math::sin(rotation_rad);
float c = ::math::cos(rotation_rad);
float4x4 rotate =
float4x4( c , -s , 0.0 , 0.0,
s , c , 0.0 , 0.0,
0.0, 0.0 , 1.0 , 0.0,
0. , 0.0 , 0.0 , 1.);
return ::base::transform_coordinate(scale*rotate, ::base::coordinate_source(system, uv_space));
}
export material Plaster_Wall(
color diffuse_tint = color(0.838f, 0.802f, 0.775f) [[
::anno::description("Adjusts the color of the plaster wall."),
::anno::display_name("Plaster Color"),
::anno::in_group("Appearance", "Wall")
]],
float diffuse_brightness = 0.5f [[
::anno::description("Adjusts the diffuse brightness of the plaster wall."),
::anno::display_name("Plaster Brightness"),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance", "Wall")
]],
float roughness = 0.5f [[
::anno::description("Adjusts the roughness of the wall. Lower values make the wall more reflective."),
::anno::display_name("Plaster Roughness"),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance", "Wall")
]],
float wall_weathering = 0.f [[
::anno::description("Adds a dirty grunge on top of the wall to create a weathered appearance."),
::anno::display_name("Wall Weathering"),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance", "Wall")
]],
float crack_darkening_weight = 0.0 [[
::anno::description("Darkens the plaster around the cracks."),
::anno::display_name("Cracks Darkness"),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance", "Cracks")
]],
uniform float cracks_bump_factor = 0.f [[
::anno::description("Determines the degree of bumpiness of the cracks."),
::anno::display_name("Cracks Bump Factor"),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance", "Cracks")
]],
uniform float2 texture_translate = float2(0.f, 0.f) [[
::anno::description("Controls the position of the texture."),
::anno::display_name("Translate"),
::anno::in_group("Transform")
]],
uniform float texture_rotate = 0.f [[
::anno::description("Controls the rotation of the texture."),
::anno::display_name("Rotate"),
::anno::in_group("Transform")
]],
uniform float2 texture_scale = float2(1.f) [[
::anno::description("Larger numbers increases the texture size."),
::anno::display_name("Scale"),
::nvidia::core_definitions::dimension(float2(.8f, .8f)),
::anno::in_group("Transform")
]],
uniform int uv_space_index = 0 [[
::anno::description("Use selected UV space for material."),
::anno::display_name("UV Space Index"),
::anno::in_group("Advanced")
]]
)
[[
::anno::author("NVIDIA vMaterials"),
::anno::display_name("Plaster Wall - New"),
::anno::description(DESCRITPION),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Plaster_Wall.Plaster_Wall.png"),
::anno::key_words(string[]("aec", "plaster", "wall", "construction", "exterior", "interior", "rough", "weathered", "worn", "light", "white" ))
]]
=
let {
bool tmp0 = false;
material_surface tmp1(
::df::custom_curve_layer(0.f, 1.f, 5.f, histogram_scan_small(::math::pow(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_ao_g_grunge_b_diff.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 2.20000005f), 0.74000001f, 0.864000022f), ::df::microfacet_ggx_smith_bsdf(::math::lerp(remap(::math::lerp(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_ao_g_grunge_b_diff.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[1], float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 0.502000034f), 0.f, 1.f, ::math::lerp(0.297000021f, 0.728000045f, roughness), ::math::lerp(0.74000001f, 0.817000031f, roughness)), remap(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2], 0.f, 1.f, 0.975000024f, 0.697000027f), wall_weathering * 0.600000024f) * ::math::lerp(remap(::math::lerp(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_ao_g_grunge_b_diff.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[1], float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 0.502000034f), 0.f, 1.f, ::math::lerp(0.297000021f, 0.728000045f, roughness), ::math::lerp(0.74000001f, 0.817000031f, roughness)), remap(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2], 0.f, 1.f, 0.975000024f, 0.697000027f), wall_weathering * 0.600000024f), ::math::lerp(remap(::math::lerp(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_ao_g_grunge_b_diff.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[1], float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 0.502000034f), 0.f, 1.f, ::math::lerp(0.297000021f, 0.728000045f, roughness), ::math::lerp(0.74000001f, 0.817000031f, roughness)), remap(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2], 0.f, 1.f, 0.975000024f, 0.697000027f), wall_weathering * 0.600000024f) * ::math::lerp(remap(::math::lerp(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_ao_g_grunge_b_diff.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[1], float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 0.502000034f), 0.f, 1.f, ::math::lerp(0.297000021f, 0.728000045f, roughness), ::math::lerp(0.74000001f, 0.817000031f, roughness)), remap(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2], 0.f, 1.f, 0.975000024f, 0.697000027f), wall_weathering * 0.600000024f), color(1.f, 1.f, 1.f), ::state::texture_tangent_u(0), ::df::scatter_reflect, ""), ::df::diffuse_reflection_bsdf(::nvidia::core_definitions::blend_colors(::nvidia::core_definitions::blend_colors(::nvidia::core_definitions::blend_colors(::nvidia::core_definitions::blend_colors(color(0.f, 0.f, 0.f), ::nvidia::core_definitions::blend_colors(diffuse_tint, color(::math::pow(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_ao_g_grunge_b_diff.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2], 1.74600005f)), ::base::color_layer_multiply, 1.f).tint, ::base::color_layer_blend, ::math::lerp(0.601000011f, 1.f, diffuse_brightness)).tint, color(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]), ::base::color_layer_overlay, ::math::lerp(0.f, 0.550000012f, wall_weathering)).tint, color(::math::pow(float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_ao_g_grunge_b_diff.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 2.20000005f)), ::base::color_layer_multiply, 0.503000021f).tint, color(0.367246985f, 0.367246985f, 0.367246985f), ::base::color_layer_multiply, float3(::base::file_texture(texture_2d("./textures/plaster_wall_multi_r_rough_g_cracksmask_b_grunge2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[1] * (crack_darkening_weight * 0.600000024f)).tint, 0.f, ""), ::state::normal()),
material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
material_surface tmp2 = material_surface(scattering: bsdf(), emission: material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
color tmp3 = color(1.f, 1.f, 1.f);
material_volume tmp4 = material_volume(scattering: vdf(), absorption_coefficient: color(0.f, 0.f, 0.f), scattering_coefficient: color(0.f, 0.f, 0.f));
material_geometry tmp5(
float3(0.f),
1.f,
add_detail_normal(normalmap_normal(texture_2d("./textures/plaster_wall_cracks_norm.jpg", ::tex::gamma_linear), cracks_bump_factor, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index)), normalmap_normal(texture_2d("./textures/plaster_wall_norm.jpg", ::tex::gamma_linear), 0.55400002f, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index))));
} in
material(
thin_walled: tmp0,
surface: tmp1,
backface: tmp2,
ior: tmp3,
volume: tmp4,
geometry: tmp5);
export material Plaster_Wall_Slightly_Cracked(*)
[[
::anno::author("NVIDIA vMaterials"),
::anno::display_name("Plaster Wall - Slightly Cracked"),
::anno::description(DESCRITPION),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Plaster_Wall.Plaster_Wall_Slightly_Cracked.png"),
::anno::key_words(string[]("aec", "plaster", "wall", "construction", "exterior", "interior", "rough", "weathered", "worn", "cracked", "cracks", "light", "white" ))
]] = Plaster_Wall(
diffuse_tint: color(0.838f, 0.802f, 0.775f),
diffuse_brightness: 0.473f,
roughness: 0.4f,
wall_weathering: 0.35f,
crack_darkening_weight: 0.322f,
cracks_bump_factor: 0.25f,
texture_translate: float2(0.0f),
texture_rotate: 0.0f,
texture_scale: float2(1.0f),
uv_space_index: 0
);
export material Plaster_Wall_Cracked(*)
[[
::anno::author("NVIDIA vMaterials"),
::anno::display_name("Plaster Wall - Cracked"),
::anno::description(DESCRITPION),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Plaster_Wall.Plaster_Wall_Cracked.png"),
::anno::key_words(string[]("aec", "plaster", "wall", "construction", "exterior", "interior", "rough", "weathered", "worn", "cracked", "cracks", "light", "white" ))
]] = Plaster_Wall(
diffuse_tint: color(0.933f, 0.900f, 0.844f),
diffuse_brightness: 0.473f,
roughness: 0.7f,
wall_weathering: 0.35f,
crack_darkening_weight: 1.0f,
cracks_bump_factor: 0.83f,
texture_translate: float2(0.0f),
texture_rotate: 0.0f,
texture_scale: float2(1.0f),
uv_space_index: 0
);
export material Plaster_Wall_Weathered(*)
[[
::anno::author("NVIDIA vMaterials"),
::anno::display_name("Plaster Wall - Weathered"),
::anno::description(DESCRITPION),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Plaster_Wall.Plaster_Wall_Weathered.png"),
::anno::key_words(string[]("aec", "plaster", "wall", "construction", "exterior", "interior", "rough", "weathered", "old", "worn", "light", "white" ))
]] = Plaster_Wall(
diffuse_tint: color(0.973f, 0.815f, 0.697f),
diffuse_brightness: 0.23,
roughness: 0.7f,
wall_weathering: 1.0f,
crack_darkening_weight: 0.215f,
cracks_bump_factor: 0.2f,
texture_translate: float2(0.0f),
texture_rotate: 0.0f,
texture_scale: float2(1.0f),
uv_space_index: 0
);
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