/****************************************************************************** * 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::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 DESCRIPTION = "A terrazzo material."; int lowbias32(int x) { x ^= x >>> 16; x *= 0x7feb352d; x ^= x >>> 15; x *= 0x846ca68b; x ^= x >>> 16; return x; } // bias: 0.020888578919738908 = minimal theoretic limit // NOTE: To turn this back to a float, one must divide the value by 4294967296.f // which corresponds to 0xffffffff, however MDL seems to turn this into -1. float uint2float(int x) { return float(x & 0x7FFFFFFF) + (x < 0 ? 2147483648.0 : 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; } 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]); } float3 srgb2rgb(float3 val) { return ::math::pow(::math::max(val, float3(0.0f)), 2.2); } float3 rgb2srgb(float3 val) [[ ::anno::unused() ]] { return ::math::pow( ::math::max(val, float3(0.f)), float3(1./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 float CON = 1.0f; 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*float(CON)) + (W[1] = F[1]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(0,1)))) - m*float(CON)) + (W[2] = F[0]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(1,0)))) - m*float(CON)); else O = (W[0] = -F[2]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(1)))) - m*float(CON)) + (W[1] = 1.f - F[1]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(1, 0)))) - m*float(CON)) + (W[2] = 1.f - F[0]) * (( ::tex::lookup_float3(texture, U/Z-rnd22(I+int2(0, 1)))) - m*float(CON)); O = m + O/::math::length(W); O = ::math::clamp( (O), 0.0, 1.0); return float3(O); } ::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; 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 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 = 1.0, 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(); } // NOTE: tex_resource must be in linear space (ensure that ::tex::gamma_linear is used) 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, 1.0), 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 )); } float remap_xy_to_0_1(float input, float x, float y) { return (input - x)/(y - x); } float histogram_scan_big(float input, float width, float position) { return ::math::clamp( remap_xy_to_0_1(input, ::math::lerp(-width, 1.0, position), ::math::lerp(0.0, 1.0 + width, position)), 0.0, 1.0); } 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); } ::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 Terrazzo( uniform bool infinite_tiling = false [[ ::anno::description("Enables infinite tiling feature which 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") ]], float brightness = 0.899999976f [[ ::anno::description("Adjusts the lightness of the material."), ::anno::display_name("Brightness"), ::anno::in_group("Appearance"), ::anno::hard_range(0.f, 1.f) ]], float roughness = 0.400000006f [[ ::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 = 0.200000003f [[ ::anno::description("Specifies the strength of the bump."), ::anno::display_name("Bump Strength"), ::anno::in_group("Appearance"), ::anno::hard_range(0.f, 1.f) ]], float reflectivity = 0.300000012f [[ ::anno::description("Amount of variation applied to the roughness, higher numbers lead to non uniform reflections of the material.\nKeep in mind if you set all weightings to 0 then there is no surface reflection at all."), ::anno::display_name("Roughness Variation"), ::anno::in_group("Appearance", "Roughness Weighting"), ::anno::hard_range(0.f, 1.f) ]], float clean_ground = 0.100000001f [[ ::anno::description("Makes the floor clean with 100 % reflection weight, if no other roughness value is set.\nKeep in mind if you set all weightings to 0 then there is no surface reflection at all."), ::anno::display_name("Cleaness"), ::anno::in_group("Appearance", "Roughness Weighting"), ::anno::hard_range(0.f, 1.f) ]], float std_ground = 0.5f [[ ::anno::description("This highlights small stone of the terrazzo and shows an overall diffuse reflection.\nKeep in mind if you set all weightings to 0 then there is no surface reflection at all."), ::anno::display_name("Small Stone Highlights"), ::anno::in_group("Appearance", "Roughness Weighting"), ::anno::hard_range(0.f, 1.f) ]], float stain_ground = 0.5f [[ ::anno::description("A diffuse reflection with some stains.\nKeep in mind if you set all weightings to 0 then there is no surface reflection at all."), ::anno::display_name("Stains"), ::anno::in_group("Appearance", "Roughness Weighting"), ::anno::hard_range(0.f, 1.f) ]], float footprints_ground = 0.5f [[ ::anno::description("A diffuse reflection with a footprints effect.\nKeep in mind if you set all weightings to 0 then there is no surface reflection at all."), ::anno::display_name("Footprints"), ::anno::in_group("Appearance", "Roughness Weighting"), ::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.f) [[ ::anno::description("Larger numbers increase the size."), ::anno::display_name("Texture Scale"), ::nvidia::core_definitions::dimension(float2(2.0f, 2.0f)), ::anno::in_group("Transform") ]], 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("Enable Round Corners"), ::anno::in_group("Round Corners") ]], uniform float radius = 0.f [[ ::anno::description("Radius of the rounded corners in millimeters."), ::anno::display_name("Round Corner Radius"), ::anno::in_group("Round Corners") ]], 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("Transform") ]]) [[ ::anno::display_name("Terrazzo"), ::anno::description(DESCRIPTION), ::anno::copyright_notice(COPYRIGHT), ::anno::key_words(string[]("dielectric", "infinite", "tiling", "stone", "school", "floor", "grey", "hard", "ground", "interior", "rough", "freckled", "highlights", "bright")), ::anno::thumbnail("./.thumbs/Terrazzo.Terrazzo.png"), ::anno::author("NVIDIA vMaterials"), ::anno::contributor("Maik Rohland"), ::anno::contributor("Ruediger Raab") ]] = let { bool tmp0 = false; material_surface tmp1(::df::custom_curve_layer(0.0399999991f, 1.f, 5.f, ::math::pow(histogram_scan_big(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 1.f, ::math::lerp(0.209999993f, 0.539999962f, reflectivity)), 2.20000005f), ::df::normalized_mix(::df::bsdf_component[](::df::bsdf_component(std_ground, ::df::microfacet_ggx_smith_bsdf(histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.649999976f, ::math::lerp(0.469999999f, 0.629999995f, roughness)) * histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.649999976f, ::math::lerp(0.469999999f, 0.629999995f, roughness)), histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.649999976f, ::math::lerp(0.469999999f, 0.629999995f, roughness)) * histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.649999976f, ::math::lerp(0.469999999f, 0.629999995f, roughness)), color(1.f, 1.f, 1.f), ::state::texture_tangent_u(0), ::df::scatter_reflect)), ::df::bsdf_component(stain_ground, ::df::microfacet_ggx_smith_bsdf(histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.5f, ::math::lerp(0.439999998f, 0.859999955f, roughness)) * histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.5f, ::math::lerp(0.439999998f, 0.859999955f, roughness)), histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.5f, ::math::lerp(0.439999998f, 0.859999955f, roughness)) * histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.5f, ::math::lerp(0.439999998f, 0.859999955f, roughness)), color(1.f, 1.f, 1.f), ::state::texture_tangent_u(0), ::df::scatter_reflect)), ::df::bsdf_component(footprints_ground, ::df::microfacet_ggx_smith_bsdf(histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.5f, ::math::lerp(0.699999988f, 0.899999976f, roughness)) * histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.5f, ::math::lerp(0.699999988f, 0.899999976f, roughness)), histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.5f, ::math::lerp(0.699999988f, 0.899999976f, roughness)) * histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 0.5f, ::math::lerp(0.699999988f, 0.899999976f, roughness)), color(1.f, 1.f, 1.f), ::state::texture_tangent_u(0), ::df::scatter_reflect)), ::df::bsdf_component(clean_ground, ::df::microfacet_ggx_smith_bsdf(roughness * roughness, roughness * 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(nvidia::core_definitions::blend_colors(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_diff.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.537999988f, 0.5f, 0.451000005f), 8.f, true) : ::base::file_texture(texture_2d("./textures/terrazzo_diff.jpg", ::tex::gamma_srgb), 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, color(histogram_range(float3(infinite_tiling ? endless_texture(texture_2d("./textures/terrazzo_multi.jpg", ::tex::gamma_linear), vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.791000009f, 0.901000023f, 0.0430000015f), 8.f, false) : ::base::file_texture(texture_2d("./textures/terrazzo_multi.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], 1.f, 0.119999997f)), ::base::color_layer_multiply, ::math::lerp(1.f, 0.f, brightness)).tint, 0.f), bsdf(), infinite_tiling ? endless_normal(texture_2d("./textures/terrazzo_norm.jpg", ::tex::gamma_linear), ::math::lerp(0.f, 2.f, bump_strength), false, false, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.5f, 0.497000009f, 0.985000014f), 8.f) : ::base::tangent_space_normal_texture(texture_2d("./textures/terrazzo_norm.jpg", ::tex::gamma_linear), ::math::lerp(0.f, 2.f, 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)), infinite_tiling ? endless_normal(texture_2d("./textures/terrazzo_norm.jpg", ::tex::gamma_linear), ::math::lerp(0.f, 2.f, bump_strength), false, false, vmat_transform(texture_translate, texture_rotate, texture_scale, ::base::texture_coordinate_uvw, uv_space_index), 8.f, float3(0.5f, 0.497000009f, 0.985000014f), 8.f) : ::base::tangent_space_normal_texture(texture_2d("./textures/terrazzo_norm.jpg", ::tex::gamma_linear), ::math::lerp(0.f, 2.f, 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_geometry tmp5(float3(0.f), 1.f, enable_round_corners ? ::state::rounded_corner_normal(radius, across_materials, 1.f) : ::state::normal()); } in material( thin_walled: tmp0, surface: tmp1, backface: tmp2, ior: tmp3, geometry: tmp5); export material Terrazzo_Dry_Matt(*) [[ ::anno::display_name("Terrazzo Dry Matte"), ::anno::description(DESCRIPTION), ::anno::copyright_notice(COPYRIGHT), ::anno::key_words(string[]("dielectric", "infinite", "tiling", "stone", "school", "floor", "grey", "hard", "ground", "interior", "rough", "dry", "matte")), ::anno::thumbnail("./.thumbs/Terrazzo.Terrazzo_Dry_Matt.png"), ::anno::author("NVIDIA vMaterials"), ::anno::contributor("Maik Rohland"), ::anno::contributor("Ruediger Raab") ]] = Terrazzo ( infinite_tiling: false, brightness: 0.6f, roughness: 0.85f, bump_strength: 0.8f, reflectivity: 0.0f, clean_ground: 0.0f, std_ground: 0.15f, stain_ground: 1.0f, footprints_ground: 0.05f, texture_translate: float2(0.0f), texture_rotate: 0.0f, texture_scale: float2(1.0f), enable_round_corners: false, radius: 1.5f, across_materials: false, uv_space_index: 0 ); export material Terrazzo_Speckled_Spots(*) [[ ::anno::display_name("Terrazzo Speckled Spots"), ::anno::description(DESCRIPTION), ::anno::copyright_notice(COPYRIGHT), ::anno::key_words(string[]("dielectric", "infinite", "tiling", "stone", "school", "floor", "grey", "hard", "ground", "interior", "rough", "speckled", "spots")), ::anno::thumbnail("./.thumbs/Terrazzo.Terrazzo_Speckled_Spots.png"), ::anno::author("NVIDIA vMaterials"), ::anno::contributor("Maik Rohland"), ::anno::contributor("Ruediger Raab") ]] = Terrazzo ( infinite_tiling: false, brightness: 0.2f, roughness: 0.25f, bump_strength: 0.0f, reflectivity: 0.8f, clean_ground: 0.0f, std_ground: 1.0f, stain_ground: 0.35f, footprints_ground: 0.33f, texture_translate: float2(0.0f), texture_rotate: 0.0f, texture_scale: float2(1.0f), enable_round_corners: false, radius: 1.5f, across_materials: false, uv_space_index: 0 ); export material Terrazzo_Freckled_Highlights(*) [[ ::anno::display_name("Terrazzo Freckled Highlights"), ::anno::description(DESCRIPTION), ::anno::copyright_notice(COPYRIGHT), ::anno::key_words(string[]("dielectric", "infinite", "tiling", "stone", "school", "floor", "grey", "hard", "ground", "interior", "rough", "freckled", "highlights")), ::anno::thumbnail("./.thumbs/Terrazzo.Terrazzo_Freckled_Highlights.png"), ::anno::author("NVIDIA vMaterials"), ::anno::contributor("Maik Rohland"), ::anno::contributor("Ruediger Raab") ]] = Terrazzo ( infinite_tiling: false, brightness: 0.0f, roughness: 0.25f, bump_strength: 0.7f, reflectivity: 0.8f, clean_ground: 0.0f, std_ground: 1.0f, stain_ground: 0.0f, footprints_ground: 0.0f, texture_translate: float2(0.0f), texture_rotate: 0.0f, texture_scale: float2(1.0f), enable_round_corners: false, radius: 1.5f, across_materials: false, uv_space_index: 0 ); export material Terrazzo_Footprints(*) [[ ::anno::display_name("Terrazzo Footprints"), ::anno::description(DESCRIPTION), ::anno::copyright_notice(COPYRIGHT), ::anno::key_words(string[]("dielectric", "infinite", "tiling", "stone", "school", "floor", "grey", "hard", "ground", "interior", "rough", "footprints")), ::anno::thumbnail("./.thumbs/Terrazzo.Terrazzo_Footprints.png"), ::anno::author("NVIDIA vMaterials"), ::anno::contributor("Maik Rohland"), ::anno::contributor("Ruediger Raab") ]] = Terrazzo ( infinite_tiling: false, brightness: 0.0f, roughness: 0.6f, bump_strength: 0.7f, reflectivity: 0.8f, clean_ground: 0.0f, std_ground: 0.23f, stain_ground: 0.2f, footprints_ground: 0.75f, texture_translate: float2(0.0f), texture_rotate: 0.0f, texture_scale: float2(1.0f), enable_round_corners: false, radius: 1.5f, across_materials: false, uv_space_index: 0 ); export material Terrazzo_Diffuse_Clean(*) [[ ::anno::display_name("Terrazzo Diffuse Clean"), ::anno::description(DESCRIPTION), ::anno::copyright_notice(COPYRIGHT), ::anno::key_words(string[]("dielectric", "infinite", "tiling", "stone", "school", "floor", "grey", "hard", "ground", "interior", "rough", "diffuse", "clean")), ::anno::thumbnail("./.thumbs/Terrazzo.Terrazzo_Diffuse_Clean.png"), ::anno::author("NVIDIA vMaterials"), ::anno::contributor("Maik Rohland"), ::anno::contributor("Ruediger Raab") ]] = Terrazzo ( infinite_tiling: false, brightness: 0.0f, roughness: 0.58f, bump_strength: 0.05f, reflectivity: 0.1f, clean_ground: 0.4f, std_ground: 0.1f, stain_ground: 0.2f, footprints_ground: 0.1f, texture_translate: float2(0.0f), texture_rotate: 0.0f, texture_scale: float2(1.0f), enable_round_corners: false, radius: 1.5f, across_materials: false, uv_space_index: 0 ); export material Terrazzo_Shiny_Clean(*) [[ ::anno::display_name("Terrazzo Shiny Clean"), ::anno::description(DESCRIPTION), ::anno::copyright_notice(COPYRIGHT), ::anno::key_words(string[]("dielectric", "infinite", "tiling", "stone", "school", "floor", "grey", "hard", "ground", "interior", "rough","shiny" ,"clean")), ::anno::thumbnail("./.thumbs/Terrazzo.Terrazzo_Shiny_Clean.png"), ::anno::author("NVIDIA vMaterials"), ::anno::contributor("Maik Rohland"), ::anno::contributor("Ruediger Raab") ]] = Terrazzo ( infinite_tiling: false, brightness: 0.8f, roughness: 0.0f, bump_strength: 0.05f, reflectivity: 0.1f, clean_ground: 0.4f, std_ground: 0.1f, stain_ground: 0.3f, footprints_ground: 0.1f, texture_translate: float2(0.0f), texture_rotate: 0.0f, texture_scale: float2(1.0f), enable_round_corners: false, radius: 1.5f, across_materials: false, uv_space_index: 0 );