| /****************************************************************************** |
| * 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 ::state::*; |
| import ::tex::*; |
| import ::math::*; |
| 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 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); |
| } |
| |
| export material Rough_Gravel( |
| float diffuse_brightness = 1.f [[ |
| ::anno::display_name("Diffuse Brightness"), |
| ::anno::description("Adjust the overall brightness of the texture."), |
| ::anno::hard_range(0.f, 1.f), |
| ::anno::usage("") |
| ]], |
| uniform float bump_factor = 1.f [[ |
| ::anno::description("Determines the degree of bumpiness."), |
| ::anno::display_name("Bump Factor") |
| ]], |
| |
| // Adjustments Group |
| uniform float2 texture_translate = float2(0.0f) |
| [[ |
| ::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(2.0f) |
| [[ |
| ::anno::display_name("Scale"), |
| ::anno::description("Larger numbers increase the size."), |
| ::nvidia::core_definitions::dimension(float2(1.2f, 1.2f)), |
| ::anno::in_group("Transform") |
| ]] |
| ) |
| [[ |
| ::anno::author("NVIDIA vMaterials"), |
| ::anno::display_name("Rough Gravel"), |
| ::anno::description("A floor material of rough an uneven gravel and dust."), |
| ::anno::copyright_notice(COPYRIGHT), |
| ::anno::thumbnail("./.thumbs/Rough_Gravel.Rough_Gravel.png"), |
| ::anno::key_words(string[]("gravel", "pebbles", "ground", "outdoor", "construction", "gray")) |
| ]] |
| = |
| let { |
| |
| uniform texture_2d DIFFTEX = texture_2d("./textures/rough_gravel_diff.jpg", ::tex::gamma_srgb); |
| uniform texture_2d NORMTEX = texture_2d("./textures/rough_gravel_norm.jpg", ::tex::gamma_linear); |
| uniform texture_2d ROUGHTEX = texture_2d("./textures/rough_gravel_rough.jpg", ::tex::gamma_linear); |
| |
| ::base::texture_coordinate_info UVW = ::base::transform_coordinate(::base::rotation_translation_scale(float3(0.0, 0.0, texture_rotate/180.*::math::PI ), float3(texture_translate.x, texture_translate.y, 0.f), float3(texture_scale.x, texture_scale.y, 1.0)), ::base::texture_coordinate_info(::state::texture_coordinate(0), ::state::texture_tangent_u(0), ::state::texture_tangent_v(0))); |
| |
| float hist_position = 0.9f; |
| |
| float tt = histogram_range(::base::file_texture(ROUGHTEX, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, UVW, float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono, 1.f, hist_position); |
| |
| |
| material_surface tmp1( |
| ::df::custom_curve_layer(0.04f, 1.f, 3.31f, 0.3f, ::df::microfacet_ggx_smith_bsdf(tt * tt, tt * tt, color(1.f, 1.f, 1.f), ::state::texture_tangent_u(0), ::df::scatter_reflect, ""), ::df::diffuse_reflection_bsdf(::base::file_texture(DIFFTEX, color(0.f, 0.f, 0.f), color(diffuse_brightness), ::base::mono_alpha, UVW, float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint, 0.600000024f, ""), ::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, |
| ::base::tangent_space_normal_texture(NORMTEX, bump_factor, false, true, UVW, float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 1.f, 0.f)); |
| } in |
| material( |
| thin_walled: false, |
| surface: tmp1, |
| backface: tmp2, |
| ior: tmp3, |
| volume: tmp4, |
| geometry: tmp5); |
| |
