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Diffstat (limited to 'intern/cycles/kernel/shaders/stdcycles.h')
| -rw-r--r-- | intern/cycles/kernel/shaders/stdcycles.h | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/intern/cycles/kernel/shaders/stdcycles.h b/intern/cycles/kernel/shaders/stdcycles.h deleted file mode 100644 index dd604da68ce..00000000000 --- a/intern/cycles/kernel/shaders/stdcycles.h +++ /dev/null @@ -1,150 +0,0 @@ -///////////////////////////////////////////////////////////////////////////// -// Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al. All Rights Reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above copyright -// notice, this list of conditions and the following disclaimer in the -// documentation and/or other materials provided with the distribution. -// * Neither the name of Sony Pictures Imageworks nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -///////////////////////////////////////////////////////////////////////////// - -#ifndef CCL_STDCYCLESOSL_H -#define CCL_STDCYCLESOSL_H - -#include "stdosl.h" - -// Declaration of built-in functions and closures, stdosl.h does not make -// these available so we have to redefine them. -#define BUILTIN [[int builtin = 1]] -#define BUILTIN_DERIV [[ int builtin = 1, int deriv = 1 ]] - -closure color diffuse_ramp(normal N, color colors[8]) BUILTIN; -closure color phong_ramp(normal N, float exponent, color colors[8]) BUILTIN; -closure color diffuse_toon(normal N, float size, float smooth) BUILTIN; -closure color glossy_toon(normal N, float size, float smooth) BUILTIN; -closure color microfacet_ggx(normal N, float ag) BUILTIN; -closure color microfacet_ggx_aniso(normal N, vector T, float ax, float ay) BUILTIN; -closure color microfacet_ggx_refraction(normal N, float ag, float eta) BUILTIN; -closure color microfacet_multi_ggx(normal N, float ag, color C) BUILTIN; -closure color microfacet_multi_ggx_aniso(normal N, vector T, float ax, float ay, color C) BUILTIN; -closure color microfacet_multi_ggx_glass(normal N, float ag, float eta, color C) BUILTIN; -closure color microfacet_ggx_fresnel(normal N, float ag, float eta, color C, color Cspec0) BUILTIN; -closure color microfacet_ggx_aniso_fresnel( - normal N, vector T, float ax, float ay, float eta, color C, color Cspec0) BUILTIN; -closure color -microfacet_multi_ggx_fresnel(normal N, float ag, float eta, color C, color Cspec0) BUILTIN; -closure color microfacet_multi_ggx_aniso_fresnel( - normal N, vector T, float ax, float ay, float eta, color C, color Cspec0) BUILTIN; -closure color -microfacet_multi_ggx_glass_fresnel(normal N, float ag, float eta, color C, color Cspec0) BUILTIN; -closure color microfacet_beckmann(normal N, float ab) BUILTIN; -closure color microfacet_beckmann_aniso(normal N, vector T, float ax, float ay) BUILTIN; -closure color microfacet_beckmann_refraction(normal N, float ab, float eta) BUILTIN; -closure color ashikhmin_shirley(normal N, vector T, float ax, float ay) BUILTIN; -closure color ashikhmin_velvet(normal N, float sigma) BUILTIN; -closure color ambient_occlusion() BUILTIN; -closure color principled_diffuse(normal N, float roughness) BUILTIN; -closure color principled_sheen(normal N) BUILTIN; -closure color principled_clearcoat(normal N, float clearcoat, float clearcoat_roughness) BUILTIN; - -// BSSRDF -closure color bssrdf(string method, normal N, vector radius, color albedo) BUILTIN; - -// Hair -closure color -hair_reflection(normal N, float roughnessu, float roughnessv, vector T, float offset) BUILTIN; -closure color -hair_transmission(normal N, float roughnessu, float roughnessv, vector T, float offset) BUILTIN; -closure color principled_hair(normal N, - color sigma, - float roughnessu, - float roughnessv, - float coat, - float alpha, - float eta) BUILTIN; - -// Volume -closure color henyey_greenstein(float g) BUILTIN; -closure color absorption() BUILTIN; - -normal ensure_valid_reflection(normal Ng, vector I, normal N) -{ - /* The implementation here mirrors the one in kernel_montecarlo.h, - * check there for an explanation of the algorithm. */ - - float sqr(float x) - { - return x * x; - } - - vector R = 2 * dot(N, I) * N - I; - - float threshold = min(0.9 * dot(Ng, I), 0.01); - if (dot(Ng, R) >= threshold) { - return N; - } - - float NdotNg = dot(N, Ng); - vector X = normalize(N - NdotNg * Ng); - - float Ix = dot(I, X), Iz = dot(I, Ng); - float Ix2 = sqr(Ix), Iz2 = sqr(Iz); - float a = Ix2 + Iz2; - - float b = sqrt(Ix2 * (a - sqr(threshold))); - float c = Iz * threshold + a; - - float fac = 0.5 / a; - float N1_z2 = fac * (b + c), N2_z2 = fac * (-b + c); - int valid1 = (N1_z2 > 1e-5) && (N1_z2 <= (1.0 + 1e-5)); - int valid2 = (N2_z2 > 1e-5) && (N2_z2 <= (1.0 + 1e-5)); - - float N_new_x, N_new_z; - if (valid1 && valid2) { - float N1_x = sqrt(1.0 - N1_z2), N1_z = sqrt(N1_z2); - float N2_x = sqrt(1.0 - N2_z2), N2_z = sqrt(N2_z2); - - float R1 = 2 * (N1_x * Ix + N1_z * Iz) * N1_z - Iz; - float R2 = 2 * (N2_x * Ix + N2_z * Iz) * N2_z - Iz; - - valid1 = (R1 >= 1e-5); - valid2 = (R2 >= 1e-5); - if (valid1 && valid2) { - N_new_x = (R1 < R2) ? N1_x : N2_x; - N_new_z = (R1 < R2) ? N1_z : N2_z; - } - else { - N_new_x = (R1 > R2) ? N1_x : N2_x; - N_new_z = (R1 > R2) ? N1_z : N2_z; - } - } - else if (valid1 || valid2) { - float Nz2 = valid1 ? N1_z2 : N2_z2; - N_new_x = sqrt(1.0 - Nz2); - N_new_z = sqrt(Nz2); - } - else { - return Ng; - } - - return N_new_x * X + N_new_z * Ng; -} - -#endif /* CCL_STDOSL_H */ |