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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 ::anno::*;
import ::base::*;
import ::math::*;
import ::state::*;
import ::std::*;
import ::tex::*;
import ::df::*;
import ::nvidia::core_definitions::*;
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 DESCRIPTION = "Brushed metal material with adjustable settings for the brushing";
float histogram_range(float input, float range, float position)
{
float low = ::math::clamp(1.0 - ::math::min(((1.0 - position) + range * 0.5), (1.0 - position) * 2), 0.0, 1.0);
float high = ::math::clamp(::math::min((position + range * 0.5 ), position * 2.0), 0.0, 1.0);
return ::math::lerp(low, high, input);
}
::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 Copper_Brushed(
float brush_width = 1.0f [[
::anno::display_name("Roughness Width"),
::anno::description("Widens the anisotropic metal reflections which leads to a stronger effect of "
"the metal brushing."),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance")
]],
float brush_height_blur = 0.75f [[
::anno::display_name("Roughness Height"),
::anno::description("Increases the anisotropy of the brushed metal, blurring the reflections."),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance")
]],
float scratch_variation_amount = 1.f [[
::anno::description("Adds a bit variation to the roughness of the brushing pattern in the form of occasional scratches that sprea dout in a wider range."),
::anno::display_name("Scratch Variation Amount"),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance")
]],
float scratch_reflection_variation = 0.4f [[
::anno::description("Attenuates the reflection of the brushed metal which will also make the material appear darker."),
::anno::display_name("Scratch Reflection Variation"),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance")
]],
float scratches_bump = 0.65f [[
::anno::description("Introduces normal-mapped scratches which further add to the realistic appearance of the surface. However, this might become for the renderer more difficult to resolve."),
::anno::display_name("Scratches Bump Amount"),
::anno::hard_range(0.0f, 1.0f),
::anno::in_group("Appearance")
]],
uniform bool enable_round_corners = false [[
::anno::display_name("Enable Round Corners"),
::anno::in_group("Round Corners")
]],
uniform float roundcorner_radius = 0.01f [[
::anno::display_name("Round Corner Radius"),
::anno::description("Adjusts the radius of the round corner effect."),
::anno::soft_range(0.0f, 0.1f),
::anno::in_group("Round Corners")
]],
uniform bool across_materials = false [[
::anno::display_name("Across Materials"),
::anno::description("Applies the rounded corner effect also between other materials."),
::anno::in_group("Round Corners")
]],
uniform float2 texture_translate = float2(0.f) [[
::anno::display_name("Translate"),
::anno::description("Controls the position of the texture."),
::anno::in_group("Transform")
]],
uniform float texture_rotate = 0.f [[
::anno::display_name("Rotate"),
::anno::description("Rotates angle of the texture in degrees."),
::anno::in_group("Transform")
]],
uniform float2 texture_scale = float2(1.f) [[
::anno::display_name("Scale"),
::anno::description("Larger numbers increase the size."),
::nvidia::core_definitions::dimension(float2(0.75f, 0.75f)),
::anno::in_group("Transform")
]],
uniform int uv_space_index = 0 [[
::anno::display_name("UV Space Index"),
::anno::description("Use selected UV space for material."),
::anno::in_group("Advanced")
]]
)
[[
::anno::author("NVIDIA vMaterials"),
::anno::display_name("Brushed Copper - Strong Brushing"),
::anno::description(DESCRIPTION),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Copper_Brushed.Copper_Brushed.png"),
::anno::key_words(string[]("aec", "metal", "copper", "brushed", "kitchen", "design", "modern", "reflective", "shiny", "architecture", "sanitary", "new", "gray", "neutral"))
]]
=
let {
color normal_reflectivity = color(0.9654565f, 0.6899602f, 0.4830392f);
color grazing_reflectivity = color(0.99942f, 1.f, 1.f);
bool tmp0 = false;
material_surface tmp1(
::df::color_custom_curve_layer(::nvidia::core_definitions::blend_colors(normal_reflectivity, color(float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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]), ::base::color_layer_multiply, scratch_reflection_variation).tint, ::nvidia::core_definitions::blend_colors(grazing_reflectivity, color(float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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]), ::base::color_layer_multiply, scratch_reflection_variation).tint, 5.f, color(1.f, 1.f, 1.f), ::df::weighted_layer(0.0900000036f, ::df::microfacet_ggx_smith_bsdf(0.399000019f, 0.399000019f, color(1.f, 1.f, 1.f), ::state::texture_tangent_u(0), ::df::scatter_reflect), ::df::microfacet_ggx_smith_bsdf(::math::lerp(histogram_range(float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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], 0.183000013f, ::math::lerp(0.100000001f, 0.400000006f, brush_width)), 0.376000017f, scratch_variation_amount * float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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]) * ::math::lerp(histogram_range(float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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], 0.183000013f, ::math::lerp(0.100000001f, 0.400000006f, brush_width)), 0.376000017f, scratch_variation_amount * float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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]), ::math::lerp(histogram_range(float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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], 0.100000001f, ::math::lerp(0.0500000007f, 0.25f, brush_height_blur)), 0.376000017f, scratch_variation_amount * float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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]) * ::math::lerp(histogram_range(float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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], 0.100000001f, ::math::lerp(0.0500000007f, 0.25f, brush_height_blur)), 0.376000017f, scratch_variation_amount * float3(::base::file_texture(texture_2d("./textures/brushed_metal_linear_R_rough_G_scratchvar_B_impurities.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 * 0.25f, ::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]), color(1.f, 1.f, 1.f), ::state::texture_tangent_u(0), ::df::scatter_reflect), ::math::lerp(::state::normal(), ::base::tangent_space_normal_texture(texture_2d("./textures/brushed_metal_linear_norm.jpg", ::tex::gamma_linear), 1.f, false, false, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.25f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 1.f, 0.f), scratches_bump)), bsdf(), ::math::lerp(::state::normal(), ::base::tangent_space_normal_texture(texture_2d("./textures/brushed_metal_linear_norm.jpg", ::tex::gamma_linear), 1.f, false, false, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.25f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 1.f, 0.f), scratches_bump)),
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 = enable_round_corners ? material_geometry(float3(0.f), 1.f, ::state::rounded_corner_normal(roundcorner_radius, across_materials, 1.f)) : material_geometry(float3(0.f), 1.f, ::state::normal());
} in
material(
thin_walled: tmp0,
surface: tmp1,
backface: tmp2,
ior: tmp3,
volume: tmp4,
geometry: tmp5);
export material Copper_Brushed_Light_Brushing(*)
[[
::anno::author("NVIDIA vMaterials"),
::anno::display_name("Brushed Copper - Light Brushing"),
::anno::description(DESCRIPTION),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Copper_Brushed.Copper_Brushed_Light_Brushing.png"),
::anno::key_words(string[]("aec", "metal", "copper", "brushed", "kitchen", "design", "modern", "reflective", "shiny", "architecture", "sanitary", "new", "gray", "neutral"))
]]
= Copper_Brushed (
brush_width: 0.225f,
brush_height_blur: 0.035f,
scratch_variation_amount: 1.0f,
scratch_reflection_variation: 0.4f,
scratches_bump: 0.2f,
enable_round_corners: false,
roundcorner_radius: 0.01f,
across_materials: false,
texture_translate: float2(0.0f),
texture_rotate: 0.0f,
texture_scale: float2(1.0f),
uv_space_index: 0
);
export material Copper_Brushed_Medium_Light_Brushing(*)
[[
::anno::author("NVIDIA vMaterials"),
::anno::display_name("Brushed Copper - Medium Light Brushing"),
::anno::description(DESCRIPTION),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Copper_Brushed.Copper_Brushed_Medium_Light_Brushing.png"),
::anno::key_words(string[]("aec", "metal", "copper", "brushed", "kitchen", "design", "modern", "reflective", "shiny", "architecture", "sanitary", "new", "gray", "neutral"))
]]
= Copper_Brushed (
brush_width: 0.361f,
brush_height_blur: 0.204f,
scratch_variation_amount: 1.0f,
scratch_reflection_variation: 0.559f,
scratches_bump: 0.35f,
enable_round_corners: false,
roundcorner_radius: 0.01f,
across_materials: false,
texture_translate: float2(0.0f),
texture_rotate: 0.0f,
texture_scale: float2(1.0f),
uv_space_index: 0
);
export material Copper_Brushed_Medium_Brushing(*)
[[
::anno::author("NVIDIA vMaterials"),
::anno::display_name("Brushed Copper - Medium Brushing"),
::anno::description(DESCRIPTION),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Copper_Brushed.Copper_Brushed_Medium_Brushing.png"),
::anno::key_words(string[]("aec", "metal", "copper", "brushed", "kitchen", "design", "modern", "reflective", "shiny", "architecture", "sanitary", "new", "gray", "neutral"))
]]
= Copper_Brushed (
brush_width: 0.665f,
brush_height_blur: 0.471f,
scratch_variation_amount: 1.0f,
scratch_reflection_variation: 0.621f,
scratches_bump: 0.5f,
enable_round_corners: false,
roundcorner_radius: 0.01f,
across_materials: false,
texture_translate: float2(0.0f),
texture_rotate: 0.0f,
texture_scale: float2(1.0f),
uv_space_index: 0
);
export material Copper_Brushed_Very_Strong_Brushing(*)
[[
::anno::author("NVIDIA vMaterials"),
::anno::display_name("Brushed Copper - Very Strong Brushing"),
::anno::description(DESCRIPTION),
::anno::copyright_notice(COPYRIGHT),
::anno::thumbnail("./.thumbs/Copper_Brushed.Copper_Brushed_Very_Strong_Brushing.png"),
::anno::key_words(string[]("aec", "metal", "copper", "brushed", "kitchen", "design", "modern", "reflective", "shiny", "architecture", "sanitary", "new", "gray", "neutral"))
]]
= Copper_Brushed (
brush_width: 1.0f,
brush_height_blur: 1.0f,
scratch_variation_amount: 1.0f,
scratch_reflection_variation: 0.824f,
scratches_bump: 1.0f,
enable_round_corners: false,
roundcorner_radius: 0.01f,
across_materials: false,
texture_translate: float2(0.0f),
texture_rotate: 0.0f,
texture_scale: float2(1.0f),
uv_space_index: 0
);
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