765eba5a6e
A Clang-Format configuration to make the closure definition block to be properly recognized as such. Also small wrapper macro to avoid comma in the actual definition code which was causing unwanted indentation of parameters definition. Requires Clang-Format 7 or newer. The version we ship in the libs is 12, so for recommended development setup it should all be good. Differential Revision: https://developer.blender.org/D12920
165 lines
7.0 KiB
C++
165 lines
7.0 KiB
C++
/*
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* Adapted from Open Shading Language with this license:
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*
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* Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al.
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* All Rights Reserved.
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*
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* Modifications Copyright 2011, Blender Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Sony Pictures Imageworks nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __OSL_CLOSURES_H__
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#define __OSL_CLOSURES_H__
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#include "kernel/kernel_types.h"
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#include "util/util_types.h"
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#include <OSL/genclosure.h>
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#include <OSL/oslclosure.h>
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#include <OSL/oslexec.h>
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CCL_NAMESPACE_BEGIN
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OSL::ClosureParam *closure_emission_params();
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OSL::ClosureParam *closure_background_params();
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OSL::ClosureParam *closure_holdout_params();
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OSL::ClosureParam *closure_bsdf_diffuse_ramp_params();
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OSL::ClosureParam *closure_bsdf_phong_ramp_params();
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OSL::ClosureParam *closure_bsdf_transparent_params();
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OSL::ClosureParam *closure_bssrdf_params();
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OSL::ClosureParam *closure_absorption_params();
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OSL::ClosureParam *closure_henyey_greenstein_params();
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OSL::ClosureParam *closure_bsdf_microfacet_params();
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OSL::ClosureParam *closure_bsdf_microfacet_multi_ggx_params();
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OSL::ClosureParam *closure_bsdf_microfacet_multi_ggx_glass_params();
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OSL::ClosureParam *closure_bsdf_microfacet_multi_ggx_aniso_params();
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OSL::ClosureParam *closure_bsdf_microfacet_ggx_fresnel_params();
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OSL::ClosureParam *closure_bsdf_microfacet_ggx_aniso_fresnel_params();
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OSL::ClosureParam *closure_bsdf_microfacet_multi_ggx_fresnel_params();
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OSL::ClosureParam *closure_bsdf_microfacet_multi_ggx_glass_fresnel_params();
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OSL::ClosureParam *closure_bsdf_microfacet_multi_ggx_aniso_fresnel_params();
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OSL::ClosureParam *closure_bsdf_principled_clearcoat_params();
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void closure_emission_prepare(OSL::RendererServices *, int id, void *data);
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void closure_background_prepare(OSL::RendererServices *, int id, void *data);
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void closure_holdout_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_diffuse_ramp_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_phong_ramp_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_transparent_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bssrdf_prepare(OSL::RendererServices *, int id, void *data);
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void closure_absorption_prepare(OSL::RendererServices *, int id, void *data);
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void closure_henyey_greenstein_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_microfacet_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_microfacet_multi_ggx_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_microfacet_multi_ggx_glass_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_microfacet_multi_ggx_aniso_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_microfacet_ggx_fresnel_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_microfacet_ggx_aniso_fresnel_prepare(OSL::RendererServices *,
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int id,
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void *data);
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void closure_bsdf_microfacet_multi_ggx_fresnel_prepare(OSL::RendererServices *,
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int id,
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void *data);
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void closure_bsdf_microfacet_multi_ggx_glass_fresnel_prepare(OSL::RendererServices *,
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int id,
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void *data);
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void closure_bsdf_microfacet_multi_ggx_aniso_fresnel_prepare(OSL::RendererServices *,
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int id,
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void *data);
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void closure_bsdf_principled_clearcoat_prepare(OSL::RendererServices *, int id, void *data);
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void closure_bsdf_principled_hair_prepare(OSL::RendererServices *, int id, void *data);
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#define CCLOSURE_PREPARE(name, classname) \
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void name(RendererServices *, int id, void *data) \
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{ \
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memset(data, 0, sizeof(classname)); \
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new (data) classname(); \
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}
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#define CCLOSURE_PREPARE_STATIC(name, classname) static CCLOSURE_PREPARE(name, classname)
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#define CLOSURE_FLOAT3_PARAM(st, fld) \
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{ \
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TypeDesc::TypeVector, (int)reckless_offsetof(st, fld), NULL, sizeof(OSL::Vec3) \
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}
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#define BSDF_CLOSURE_FLOAT_PARAM(st, fld) CLOSURE_FLOAT_PARAM(st, fld),
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#define BSDF_CLOSURE_FLOAT3_PARAM(st, fld) CLOSURE_FLOAT3_PARAM(st, fld),
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#define TO_VEC3(v) OSL::Vec3(v.x, v.y, v.z)
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#define TO_COLOR3(v) OSL::Color3(v.x, v.y, v.z)
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#define TO_FLOAT3(v) make_float3(v[0], v[1], v[2])
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/* Closure */
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class CClosurePrimitive {
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public:
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virtual void setup(ShaderData *sd, uint32_t path_flag, float3 weight) = 0;
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OSL::ustring label;
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};
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/* BSDF */
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class CBSDFClosure : public CClosurePrimitive {
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public:
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bool skip(const ShaderData *sd, uint32_t path_flag, int scattering);
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};
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#define BSDF_CLOSURE_CLASS_BEGIN(Upper, lower, structname, TYPE) \
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\
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class Upper##Closure : public CBSDFClosure { \
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public: \
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structname params; \
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float3 unused; \
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\
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void setup(ShaderData *sd, uint32_t path_flag, float3 weight) \
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{ \
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if (!skip(sd, path_flag, TYPE)) { \
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structname *bsdf = (structname *)bsdf_alloc_osl(sd, sizeof(structname), weight, ¶ms); \
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sd->flag |= (bsdf) ? bsdf_##lower##_setup(bsdf) : 0; \
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} \
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} \
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}; \
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\
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static ClosureParam *bsdf_##lower##_params() \
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{ \
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static ClosureParam params[] = {
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/* parameters */
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#define BSDF_CLOSURE_CLASS_END(Upper, lower) \
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CLOSURE_STRING_KEYPARAM(Upper##Closure, label, "label"), CLOSURE_FINISH_PARAM(Upper##Closure) \
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} \
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; \
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return params; \
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} \
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\
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CCLOSURE_PREPARE_STATIC(bsdf_##lower##_prepare, Upper##Closure)
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CCL_NAMESPACE_END
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#endif /* __OSL_CLOSURES_H__ */
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