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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 ::anno::*;
import ::base::*;
import ::df::*;
import ::math::*;
import ::state::*;
import ::tex::*;
import ::nvidia::core_definitions::blend_colors;
import ::nvidia::core_definitions::blend_normals;
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 DESCRIPTION = "A rubber material usesd for tires.";
float histogram_range(float input, float range = 1.0f, float position = 0.5f)
{
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);
}
float uint2float(int x)
{
return float(x & 0x7FFFFFFF) + (x < 0 ? 2147483648.0 : 0.0);
}
int lowbias32(int x)
{
x ^= x >>> 16;
x *= 0x7feb352d;
x ^= x >>> 15;
x *= 0x846ca68b;
x ^= x >>> 16;
return x;
}
float2x2 invert_2x2(float2x2 M)
{
float det = M[0][0]*M[1][1] - M[0][1]*M[1][0];
//https://www.chilimath.com/lessons/advanced-algebra/inverse-of-a-2x2-matrix/
return (1.0 / det) * float2x2(M[1][1], -M[0][1], -M[1][0], M[0][0]);
}
float2 rnd22(int2 p) {
float2 ret_val = float2(
uint2float(lowbias32(p[0] + lowbias32(p[1]))) / 4294967296.f,
uint2float(lowbias32(p[0] + 32000 + lowbias32(p[1]))) / 4294967296.f
);
return ret_val;
}
::base::texture_coordinate_info transform_coordinate_2(
float4x4 transform
[[ ::anno::description("A transformation to be applied to the source coordinates. rotation_translation_scale() is a suggested means to compute the transformation matrix.") ]],
::base::texture_coordinate_info coordinate = ::base::texture_coordinate_info()
[[ ::anno::description("Coordinate, typically sourced from coordinate_source or coordinate_projection.") ]]
) [[
::anno::description("Transform a texture coordinate by a matrix.") ,
::anno::noinline()
]]
{
// Version 2
float4 r_position = transform * float4(coordinate.position.x,coordinate.position.y,coordinate.position.z,1);
//Hack: try aproximating it for the case that the rotation is only aroud z and assuming the texture layout is nice and z is ~constant.
//just pretend there is no other rotation happening
//get rid of scaling and translation. Then extract fields where sin and cos would be in a simple 2d transform around z.
float4 u = transform[0];
float3 ru = ::math::normalize(float3(u.x,u.y,u.z));
float cos = ru.x;
float sin = -ru.y;
return ::base::texture_coordinate_info(
float3(r_position.x,r_position.y,r_position.z),
math::normalize(cos * coordinate.tangent_u - sin * coordinate.tangent_v),
math::normalize(cos * coordinate.tangent_v + sin * coordinate.tangent_u));
}
float3 srgb2rgb(float3 val)
{
return ::math::pow(::math::max(val, float3(0.0f)), 2.2);
}
float3 nonrepeat_lookup(
uniform texture_2d texture = texture_2d(),
::base::texture_coordinate_info uvw = ::base::coordinate_source(),
float texture_scale = 1.0,
float3 average_color = float3(0.5),
float patch_size = 8.0
)
{
float2 uv_in = float2(uvw.position[0], uvw.position[1]) * texture_scale;
float Z = patch_size; // patch scale inside example texture
float3 O = float3(0.f);
float2x2 M0 = float2x2(1.f,0.f, 0.5f, ::math::sqrt(3.f)/2.f);
float2x2 M = invert_2x2(M0); // transform matrix <-> tilted space
float2 U = uv_in;
float2 V = M * uv_in; //pre-tilted hexa coordinates
int2 I = int2(::math::floor(V)); // hexa-tile id
// The mean color needs to be determined in Photoshop then to make the
// average color work out, take the float value and calculate the apropriate
// mean value as (value^(1/2.2))
float3 m = average_color;
float3 F = float3(::math::frac(V)[0], ::math::frac(V)[1], 0.f), W;
F[2] = 1.0 - F[0] - F[1]; // local hexa coordinates
if( F[2] > 0.f )
O = (W[0] = F[2]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I))) - m)
+ (W[1] = F[1]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(0,1)))) - m)
+ (W[2] = F[0]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(1,0)))) - m);
else
O = (W[0] = -F[2]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(1)))) - m)
+ (W[1] = 1.f - F[1]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(1, 0)))) - m)
+ (W[2] = 1.f - F[0]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(0, 1)))) - m);
O = m + O/::math::length(W);
O = ::math::clamp( (O), 0.0, 1.0);
return float3(O);
}
float3 endless_normal(
uniform texture_2d texture = texture_2d(),
float factor = 1.0,
bool flip_tangent_u = false,
bool flip_tangent_v = false,
::base::texture_coordinate_info uvw = ::base::coordinate_source(),
float texture_scale = 10.0,
float3 average_color = float3(0.5, 0.5, 1.0),
float patch_size = 8.0
//bool srgb2rgb = false,
//bool rgb2srgb = false
)
{
float3 transformed_tangent_u = flip_tangent_u ? uvw.tangent_u : - uvw.tangent_u;
float3 transformed_tangent_v = flip_tangent_v ? uvw.tangent_v : - uvw.tangent_v;
if (flip_tangent_u)
transformed_tangent_u=-transformed_tangent_u;
if (flip_tangent_v)
transformed_tangent_v=-transformed_tangent_v;
// normalized Lookup
float3 tangent_space_normal =
(nonrepeat_lookup (
texture: texture,
uvw: uvw,
texture_scale: texture_scale,
average_color: average_color,
patch_size: patch_size
) - 0.5) * (2.0 * factor);
return ::math::normalize(uvw.tangent_u * tangent_space_normal.x +
uvw.tangent_v * tangent_space_normal.y +
state::normal()*1.0);
//return state::normal();
}
color endless_texture(
uniform texture_2d texture = texture_2d(),
::base::texture_coordinate_info uvw = ::base::coordinate_source(),
float texture_scale = 10.0,
float3 average_color = float3(0.5, 0.5, .5),
float patch_size = 8.0,
bool gamma_correct_lookup = true
)
{
return gamma_correct_lookup ? color(srgb2rgb(
nonrepeat_lookup (
texture: texture,
uvw: uvw,
texture_scale: texture_scale,
average_color: average_color,
patch_size: patch_size
))
) : color(nonrepeat_lookup (
texture: texture,
uvw: uvw,
texture_scale: texture_scale,
average_color: average_color,
patch_size: patch_size
));
}
::base::texture_coordinate_info vmat_transform(
float2 translation = float2(0.0, 0.0),
float rotation = 0.0, // rotation in degrees
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 transform_coordinate_2(scale*rotate, ::base::coordinate_source(system, uv_space));
}
float remap_invert_exponential_range(float input, float steepness = 10.0f)
{
return 1.0 / ((input*steepness)+ 0.000001)*(input-1.0)*(input-1.0);
}
::base::texture_coordinate_info vmat_transform_post_scale(
::base::texture_coordinate_info uvw,
float2 scale = float2(1.0f)
)
{
return ::base::texture_coordinate_info(
position: float3(uvw.position.x / scale.x,
uvw.position.y / scale.y,
uvw.position.z),
tangent_u: uvw.tangent_u,
tangent_v: uvw.tangent_v
);
}
export material Tire(
uniform bool infinite_tiling = false [[
::anno::description("Enables infinite tiling feature that removes repeating texture patterns. Note that depending on the material this feature changes the appearance of the material slightly."),
::anno::display_name("Infinite Tiling"),
::anno::in_group("Appearance"),
::anno::ui_order(0)
]],
color rubber_diff = color(0.013f) [[
::anno::description("Choose the main color of the rubber material."),
::anno::display_name("Rubber Color"),
::anno::in_group("Appearance"),
::anno::ui_order(1)
]],
float reflection_roughness = 0.f [[
::anno::description("Higher roughness values lead to bigger highlights and blurrier reflections. Use this feature to balance the roughness of the dust, grunge and spots layer, too."),
::anno::display_name("Roughness"),
::anno::in_group("Appearance", "Roughness"),
::anno::soft_range(0.f, 1.f),
::anno::ui_order(2)
]],
float reflection_roughness_fractal = .3f [[
::anno::description("Applies a roughness layer of noisy dust."),
::anno::display_name("Dust"),
::anno::in_group("Appearance", "Roughness"),
::anno::soft_range(0.f, 1.f),
::anno::ui_order(3)
]],
float reflection_roughness_grunge = .9f [[
::anno::description("Applies a roughness layer of grunge. This works well with the dirt feature."),
::anno::display_name("Grunge"),
::anno::in_group("Appearance", "Roughness"),
::anno::soft_range(0.f, 1.f),
::anno::ui_order(4)
]],
float reflection_roughness_spots = .3f [[
::anno::description("Applies a roughness layer of dirt spots."),
::anno::display_name("Spots"),
::anno::in_group("Appearance", "Roughness"),
::anno::soft_range(0.f, 1.f),
::anno::ui_order(5)
]],
float reflection_scale = 1.f [[
::anno::description("Scales the dust, grunge and spot reflection layer and the dirt appearance, too."),
::anno::display_name("Imperfection Scale"),
::anno::in_group("Appearance", "Roughness"),
::anno::ui_order(6)
]],
color dirt_diff = color(0.123f) [[
::anno::description("Choose the color of the dirt layer."),
::anno::display_name("Color"),
::anno::in_group("Appearance", "Dirt"),
::anno::ui_order(7)
]],
float variation_of_dirt_layer = .3f [[
::anno::description("Creates variation of dirt applied to the material."),
::anno::display_name("Variation"),
::anno::in_group("Appearance", "Dirt"),
::anno::soft_range(0.f, 1.f),
::anno::ui_order(8)
]],
float Amount_of_dirt = 0.6f [[
::anno::description("The amount of dirt applied to the material."),
::anno::display_name("Amount"),
::anno::in_group("Appearance", "Dirt"),
::anno::soft_range(0.f, 1.f),
::anno::ui_order(9)
]],
uniform float bump_strength = .3f [[
::anno::description("Specifies the strength of the bump."),
::anno::display_name("Bump Strength"),
::anno::in_group("Appearance", "Bump"),
::anno::soft_range(0.f, 1.f),
::anno::ui_order(10)
]],
float base_normal_weight = 1.f [[
::anno::description("Specifies the amount of a granular surface."),
::anno::display_name("Granular Weight"),
::anno::in_group("Appearance", "Bump"),
::anno::soft_range(0.f, 1.f),
::anno::ui_order(11)
]],
float granular_normal_weight = 1.f [[
::anno::description("Specifies the amount of a grunge surface."),
::anno::display_name("Grunge Weight"),
::anno::in_group("Appearance", "Bump"),
::anno::soft_range(0.f, 1.f),
::anno::ui_order(12)
]],
float bump_scale = 1.f [[
::anno::description("This slider scales the bump layer."),
::anno::display_name("Bump Scale"),
::anno::in_group("Appearance", "Bump"),
::anno::ui_order(13)
]],
float2 texture_translate = float2(0.f) [[
::anno::description("Controls the position of the texture."),
::anno::display_name("Texture Translate"),
::anno::in_group("Transform"),
::anno::ui_order(14)
]],
float texture_rotate = 0.f [[
::anno::description("Rotates angle of the texture in degrees."),
::anno::display_name("Texture Rotate"),
::anno::in_group("Transform"),
::anno::ui_order(15)
]],
float2 texture_scale = float2(1.f) [[
::anno::description("Larger numbers increase the size."),
::anno::display_name("Texture Scale"),
::anno::in_group("Transform"),
::nvidia::core_definitions::dimension(float2(1.0f, 1.0f)),
::anno::ui_order(16)
]],
uniform int uv_space_index = 0 [[
::anno::description("Uses selected UV space for material."),
::anno::display_name("UV Space Index"),
::anno::in_group("Transform"),
::anno::ui_order(17)
]],
uniform bool enable_round_corners = false [[
::anno::description("Enables the round corner effect. Comes at a slight performance cost as additional raytracing calls are required to evaluate the round corner effect."),
::anno::display_name("Round Corners"),
::anno::in_group("Round Corners"),
::anno::ui_order(18)
]],
uniform float radius = 1.5f [[
::anno::description("Radius of the rounded corners in millimeters (mm)."),
::anno::display_name("Radius mm"),
::anno::in_group("Round Corners"),
::anno::ui_order(19)
]],
uniform bool across_materials = false [[
::anno::description("Applies the round corner effect across different materials when enabled."),
::anno::display_name("Across Materials"),
::anno::in_group("Round Corners"),
::anno::ui_order(20)
]])
[[
::anno::description(DESCRIPTION),
::anno::display_name("Tire"),
::anno::copyright_notice(COPYRIGHT),
::anno::key_words(string[]("rubber", "car", "infinite tiling", "natural", "rough", "bumped", "black", "racing", "street", "caoutchouc", "tire", "wheel", "car", "automotive")),
::anno::thumbnail("./.thumbs/Tire.Tire.png"),
::anno::author("Nvidia vMaterials"),
::anno::contributor("Maik Rohland"),
::anno::contributor("Ruediger Raab")
]]
=
let {
bool tmp0 = false;
material_surface tmp1(df::custom_curve_layer(0.0199999996f, 1.f, 5.f, 1.f, df::microfacet_ggx_smith_bsdf((math::max(math::max(histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[0], 1.f, math::lerp(0.f, 0.639999986f, reflection_roughness_fractal)), histogram_range(1.f - float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[1], 0.889999986f, math::lerp(0.f, 0.709999979f, reflection_roughness_grunge))), float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[2] * reflection_roughness_spots) + reflection_roughness) * (math::max(math::max(histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[0], 1.f, math::lerp(0.f, 0.639999986f, reflection_roughness_fractal)), histogram_range(1.f - float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[1], 0.889999986f, math::lerp(0.f, 0.709999979f, reflection_roughness_grunge))), float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[2] * reflection_roughness_spots) + reflection_roughness), (math::max(math::max(histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[0], 1.f, math::lerp(0.f, 0.639999986f, reflection_roughness_fractal)), histogram_range(1.f - float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[1], 0.889999986f, math::lerp(0.f, 0.709999979f, reflection_roughness_grunge))), float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[2] * reflection_roughness_spots) + reflection_roughness) * (math::max(math::max(histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[0], 1.f, math::lerp(0.f, 0.639999986f, reflection_roughness_fractal)), histogram_range(1.f - float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[1], 0.889999986f, math::lerp(0.f, 0.709999979f, reflection_roughness_grunge))), float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[2] * reflection_roughness_spots) + reflection_roughness), color(1.f, 1.f, 1.f), color(0.f, 0.f, 0.f), state::texture_tangent_u(0), df::scatter_reflect), df::weighted_layer(1.f, df::diffuse_reflection_bsdf(nvidia::core_definitions::blend_colors(nvidia::core_definitions::blend_colors(rubber_diff, color(math::clamp(remap_invert_exponential_range(histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[2], 1.f, 0.389999986f), 10.3599997f), 0.f, 0.0899999961f)), base::color_layer_screen, 0.0599999987f, true).tint, dirt_diff, base::color_layer_blend, math::pow(1.f - histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), 8.f, float3(0.800000012f, 0.756862998f, 0.847059011f), 8.f, false) : base::file_texture(texture_2d("./textures/tire_multi_rough_R_fractal_sum_G_grungeA_B_BnWSpots3.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(9.99999975e-05f, 1.f, reflection_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 0.f, int2(0), tex::wrap_repeat, 30.f).tint)[1], math::lerp(0.200000003f, 1.f, variation_of_dirt_layer), math::lerp(1.f, 0.300000012f, Amount_of_dirt)), 4.f), true).tint, 0.5f), bsdf(), nvidia::core_definitions::blend_normals(infinite_tiling ? endless_normal(texture_2d("./textures/tire_fractal_sum_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(0.00999999978f, 0.100000001f, bump_scale))), 8.f, float3(0.501960993f, 0.501960993f, 0.988234997f), 8.f) : base::tangent_space_normal_texture(texture_2d("./textures/tire_fractal_sum_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(0.00999999978f, 0.100000001f, bump_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 1.f, 0.f, 0.f, int2(0), tex::wrap_repeat, 30.f), base_normal_weight, infinite_tiling ? endless_normal(texture_2d("./textures/tire_grunge_A_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(0.00999999978f, 0.100000001f, bump_scale))), 8.f, float3(0.498039007f, 0.498039007f, 0.996078014f), 8.f) : base::tangent_space_normal_texture(texture_2d("./textures/tire_grunge_A_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(0.00999999978f, 0.100000001f, bump_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 1.f, 0.f, 0.f, int2(0), tex::wrap_repeat, 30.f), granular_normal_weight)), nvidia::core_definitions::blend_normals(infinite_tiling ? endless_normal(texture_2d("./textures/tire_fractal_sum_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(0.00999999978f, 0.100000001f, bump_scale))), 8.f, float3(0.501960993f, 0.501960993f, 0.988234997f), 8.f) : base::tangent_space_normal_texture(texture_2d("./textures/tire_fractal_sum_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(0.00999999978f, 0.100000001f, bump_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 1.f, 0.f, 0.f, int2(0), tex::wrap_repeat, 30.f), base_normal_weight, infinite_tiling ? endless_normal(texture_2d("./textures/tire_grunge_A_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(0.00999999978f, 0.100000001f, bump_scale))), 8.f, float3(0.498039007f, 0.498039007f, 0.996078014f), 8.f) : base::tangent_space_normal_texture(texture_2d("./textures/tire_grunge_A_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale, base::texture_coordinate_uvw, uv_space_index), float2(math::lerp(0.00999999978f, 0.100000001f, bump_scale))), float2(0.f, 1.f), float2(0.f, 1.f), tex::wrap_repeat, tex::wrap_repeat, false, 1.f, 0.f, 0.f, int2(0), tex::wrap_repeat, 30.f), granular_normal_weight)), 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_geometry tmp5(float3(0.f), 1.f, enable_round_corners ? state::rounded_corner_normal(radius * 0.00100000005f, across_materials, 1.f) : state::normal());
} in
material(
thin_walled: tmp0,
surface: tmp1,
backface: tmp2,
ior: tmp3,
geometry: tmp5);
export material Tire_Dusty(*)
[[
::anno::description(DESCRIPTION),
::anno::display_name("Tire Dusty"),
::anno::copyright_notice(COPYRIGHT),
::anno::key_words(string[]("rubber", "car", "infinite tiling", "natural", "rough", "dusty", "black", "grey", "racing", "street", "caoutchouc", "tire", "wheel", "car", "automotive")),
::anno::thumbnail("./.thumbs/Tire.Tire_Dusty.png"),
::anno::author("Nvidia vMaterials"),
::anno::contributor("Maik Rohland"),
::anno::contributor("Ruediger Raab")
]]
= Tire (
infinite_tiling: false,
rubber_diff: color(0.013f),
reflection_roughness: 0.f,
reflection_roughness_fractal: .5f,
reflection_roughness_grunge: .7f,
reflection_roughness_spots: .7f,
reflection_scale: 1.f,
dirt_diff:color(0.57f),
variation_of_dirt_layer:1.f,
Amount_of_dirt:.85f,
bump_strength:.3f,
base_normal_weight: 1.f,
granular_normal_weight:1.f,
bump_scale: 1.f,
texture_translate:float2(0.0f),
texture_rotate:0.f,
texture_scale: float2(1.0f),
uv_space_index: 0,
enable_round_corners: false,
radius: 1.5f,
across_materials: false
);
export material Tire_Offroad(*)
[[
::anno::description(DESCRIPTION),
::anno::display_name("Tire Offroad"),
::anno::copyright_notice(COPYRIGHT),
::anno::key_words(string[]("rubber", "car", "infinite tiling", "natural", "rough", "dusty", "muddy", "sand", "black", "grey", "racing", "street", "caoutchouc", "tire", "wheel", "car", "automotive")),
::anno::thumbnail("./.thumbs/Tire.Tire_Offroad.png"),
::anno::author("Nvidia vMaterials"),
::anno::contributor("Maik Rohland"),
::anno::contributor("Ruediger Raab")
]]
= Tire (
infinite_tiling: false,
rubber_diff: color(0.013f),
reflection_roughness: .2f,
reflection_roughness_fractal: .2f,
reflection_roughness_grunge: 1.f,
reflection_roughness_spots: .5f,
reflection_scale: 1.f,
dirt_diff:color(0.078057f, 0.041452f, 0.003697f),
variation_of_dirt_layer:1.f,
Amount_of_dirt:1.f,
bump_strength:1.f,
base_normal_weight: 1.f,
granular_normal_weight:1.f,
bump_scale: 2.f,
texture_translate:float2(0.0f),
texture_rotate:0.f,
texture_scale: float2(1.0f),
uv_space_index: 0,
enable_round_corners: false,
radius: 1.5f,
across_materials: false
);
export material Tire_Slick(*)
[[
::anno::description(DESCRIPTION),
::anno::display_name("Tire Slick"),
::anno::copyright_notice(COPYRIGHT),
::anno::key_words(string[]("rubber", "car", "infinite tiling", "natural", "slick", "dusty", "grip", "black", "racing", "street", "caoutchouc", "tire", "wheel", "car", "automotive")),
::anno::thumbnail("./.thumbs/Tire.Tire_Slick.png"),
::anno::author("Nvidia vMaterials"),
::anno::contributor("Maik Rohland"),
::anno::contributor("Ruediger Raab")
]]
= Tire (
infinite_tiling: false,
rubber_diff: color(0.013f),
reflection_roughness: .15f,
reflection_roughness_fractal: .2f,
reflection_roughness_grunge: .2f,
reflection_roughness_spots: .3f,
reflection_scale: 2.f,
dirt_diff:color(0.078057f, 0.041452f, 0.003697f),
variation_of_dirt_layer:1.f,
Amount_of_dirt:0.f,
bump_strength:.3f,
base_normal_weight: 0.f,
granular_normal_weight:1.f,
bump_scale: 2.f,
texture_translate:float2(0.0f),
texture_rotate:0.f,
texture_scale: float2(1.0f),
uv_space_index: 0,
enable_round_corners: false,
radius: 1.5f,
across_materials: false
);
export material Tire_New(*)
[[
::anno::description(DESCRIPTION),
::anno::display_name("Tire New"),
::anno::copyright_notice(COPYRIGHT),
::anno::key_words(string[]("rubber", "car", "infinite tiling", "natural", "shiny", "new", "fresh", "grip", "black", "racing", "street", "caoutchouc", "tire", "wheel", "car", "automotive")),
::anno::thumbnail("./.thumbs/Tire.Tire_New.png"),
::anno::author("Nvidia vMaterials"),
::anno::contributor("Maik Rohland"),
::anno::contributor("Ruediger Raab")
]]
= Tire (
infinite_tiling: false,
rubber_diff: color(0.013f),
reflection_roughness: 0.f,
reflection_roughness_fractal: .2f,
reflection_roughness_grunge: .3f,
reflection_roughness_spots: .5f,
reflection_scale: 1.f,
dirt_diff:color(0.078057f, 0.041452f, 0.003697f),
variation_of_dirt_layer:1.f,
Amount_of_dirt:0.f,
bump_strength:.2f,
base_normal_weight: 1.f,
granular_normal_weight:1.f,
bump_scale: 1.f,
texture_translate:float2(0.0f),
texture_rotate:0.f,
texture_scale: float2(1.0f),
uv_space_index: 0,
enable_round_corners: false,
radius: 1.5f,
across_materials: false
);