| /****************************************************************************** | |
| * 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 ::df::*; | |
| import ::math::*; | |
| import ::state::*; | |
| import ::tex::*; | |
| 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"; | |
| float remap_xy_to_0_1(float input, float x, float y) | |
| { | |
| return (input - x)/(y - x); | |
| } | |
| 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 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); | |
| } | |
| ::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); | |
| //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; | |
| //TODO: at least also handle sign of z? | |
| //TODO: handle tangent becoming 0 | |
| 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)); | |
| } | |
| ::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)); | |
| } | |
| export material Concrete_Formed( | |
| float diffuse_brightness = 0.82f [[ | |
| ::anno::description("Adjusts the lightness of the material."), | |
| ::anno::display_name("Diffuse Brightness"), | |
| ::anno::in_group("Appearance"), | |
| ::anno::hard_range(0.f, 1.f) | |
| ]], | |
| float roughness = 0.06f [[ | |
| ::anno::description("Higher roughness values lead to bigger highlights and blurrier reflections."), | |
| ::anno::display_name("Roughness"), | |
| ::anno::in_group("Appearance"), | |
| ::anno::hard_range(0.f, 1.f) | |
| ]], | |
| uniform float bump_strength = 1.f [[ | |
| ::anno::description("Specifies the strength of the bump."), | |
| ::anno::display_name("Bump Strength"), | |
| ::anno::in_group("Appearance"), | |
| ::anno::hard_range(0.f, 1.f) | |
| ]], | |
| float2 texture_translate = float2(0.f) [[ | |
| ::anno::description("Controls the position of the texture."), | |
| ::anno::display_name("Texture Translate"), | |
| ::anno::in_group("Transform") | |
| ]], | |
| float texture_rotate = 0.f [[ | |
| ::anno::description("Rotates angle of the texture in degrees."), | |
| ::anno::display_name("Texture Rotate"), | |
| ::anno::in_group("Transform") | |
| ]], | |
| float2 texture_scale = float2(1.0f) [[ | |
| ::anno::description("Larger numbers increase the size."), | |
| ::anno::display_name("Texture Scale"), | |
| ::anno::in_group("Transform"), | |
| ::nvidia::core_definitions::dimension(float2(1.4f, 1.4f)) | |
| ]], | |
| uniform bool 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") | |
| ]], | |
| uniform float radius = 1.5f [[ | |
| ::anno::description("Radius of the rounded corners."), | |
| ::anno::display_name("Radius"), | |
| ::anno::in_group("Round Corners"), | |
| ::anno::soft_range(0.f, 10.f) | |
| ]], | |
| uniform bool across_materials = true [[ | |
| ::anno::description("Applies the round corner effect across different materials when enabled."), | |
| ::anno::display_name("Across Materials"), | |
| ::anno::in_group("Round Corners") | |
| ]], | |
| uniform int uv_space_index = 0 [[ | |
| ::anno::description("Uses selected UV space for material."), | |
| ::anno::display_name("UV Space Index"), | |
| ::anno::in_group("Advanced") | |
| ]] | |
| ) | |
| [[ | |
| ::anno::description("A formed concrete material with wooden texture imprint."), | |
| ::anno::in_group("Concrete"), | |
| ::anno::display_name("Formed Concrete Shiny"), | |
| ::anno::key_words(string[]("concrete", "architecture", "hard", "solid", "artificial", "interior", "exterior", "construction", "wood", "pattern", "neutral", "gray")), | |
| ::anno::thumbnail("./.thumbs/Concrete_Formed.Concrete_Formed.png"), | |
| ::anno::copyright_notice(COPYRIGHT), | |
| ::anno::author("NVIDIA vMaterials"), | |
| ::anno::contributor("Ruediger Raab"), | |
| ::anno::contributor("Maik Rohland") | |
| ]] | |
| = | |
| let { | |
| bool tmp0 = false; | |
| material_surface tmp1(df::custom_curve_layer(0.0399999991f, 1.f, 5.f, math::pow(histogram_scan_small(float3(base::file_texture(texture_2d("./textures/conrete_formed_ORM.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], 0.660000026f, 0.649999976f), 2.20000005f), df::microfacet_ggx_smith_bsdf(histogram_range(float3(base::file_texture(texture_2d("./textures/conrete_formed_ORM.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], math::lerp(0.660000026f, 1.f, roughness), math::lerp(0.5f, 0.800000012f, roughness)) * histogram_range(float3(base::file_texture(texture_2d("./textures/conrete_formed_ORM.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], math::lerp(0.660000026f, 1.f, roughness), math::lerp(0.5f, 0.800000012f, roughness)), histogram_range(float3(base::file_texture(texture_2d("./textures/conrete_formed_ORM.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], math::lerp(0.660000026f, 1.f, roughness), math::lerp(0.5f, 0.800000012f, roughness)) * histogram_range(float3(base::file_texture(texture_2d("./textures/conrete_formed_ORM.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], math::lerp(0.660000026f, 1.f, roughness), math::lerp(0.5f, 0.800000012f, roughness)), color(1.f, 1.f, 1.f), state::texture_tangent_u(0), df::scatter_reflect), df::weighted_layer(1.f, df::diffuse_reflection_bsdf(base::file_texture(texture_2d("./textures/conrete_formed_diff.jpg", ::tex::gamma_srgb), color(0.f, 0.f, 0.f), color(math::lerp(0.641000032f, 1.f, diffuse_brightness)), 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.f), bsdf(), base::tangent_space_normal_texture(texture_2d("./textures/conrete_formed_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, 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, 1.f, 0.f)), base::tangent_space_normal_texture(texture_2d("./textures/conrete_formed_norm.jpg", ::tex::gamma_linear), bump_strength, false, false, 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, 1.f, 0.f)), 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, round_corners ? state::rounded_corner_normal(radius * 0.00100000005f, across_materials, 1.f) : state::normal()); | |
| hair_bsdf tmp6 = hair_bsdf(); | |
| } in | |
| material( | |
| thin_walled: tmp0, | |
| surface: tmp1, | |
| backface: tmp2, | |
| ior: tmp3, | |
| volume: tmp4, | |
| geometry: tmp5, | |
| hair: tmp6); | |
| export material Concrete_Formed_Rough(*) | |
| [[ | |
| ::anno::description("A formed concrete material with wooden texture imprint."), | |
| ::anno::in_group("Concrete"), | |
| ::anno::display_name("Formed Concrete Rough"), | |
| ::anno::key_words(string[]("concrete", "architecture", "hard", "solid", "artificial", "interior", "exterior", "construction", "wood", "pattern", "neutral", "gray")), | |
| ::anno::thumbnail("./.thumbs/Concrete_Formed.Concrete_Formed_Rough.png"), | |
| ::anno::copyright_notice(COPYRIGHT), | |
| ::anno::author("NVIDIA vMaterials"), | |
| ::anno::contributor("Ruediger Raab"), | |
| ::anno::contributor("Maik Rohland") | |
| ]] | |
| = Concrete_Formed( | |
| diffuse_brightness: 0.55f, | |
| roughness: 0.8f, | |
| bump_strength: 1.0f, | |
| texture_translate: float2(0.0f), | |
| texture_rotate: 0.0f, | |
| texture_scale: float2(1.0f), | |
| round_corners: false, | |
| radius: 1.5f, | |
| across_materials: false, | |
| uv_space_index: 0 | |
| ); | |