diff options
Diffstat (limited to 'intern/cycles/kernel/osl/bsdf_diffuse_ramp.cpp')
-rw-r--r-- | intern/cycles/kernel/osl/bsdf_diffuse_ramp.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/bsdf_diffuse_ramp.cpp b/intern/cycles/kernel/osl/bsdf_diffuse_ramp.cpp new file mode 100644 index 00000000000..a320bea118a --- /dev/null +++ b/intern/cycles/kernel/osl/bsdf_diffuse_ramp.cpp @@ -0,0 +1,115 @@ +/* + * Adapted from Open Shading Language with this license: + * + * Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al. + * All Rights Reserved. + * + * Modifications Copyright 2011, Blender Foundation. + * + * 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. + */ + +#include <OpenImageIO/fmath.h> + +#include <OSL/genclosure.h> + +#include "osl_closures.h" + +#include "kernel_types.h" +#include "kernel_montecarlo.h" +#include "closure/bsdf_diffuse_ramp.h" + +CCL_NAMESPACE_BEGIN + +using namespace OSL; + +class DiffuseRampClosure : public CBSDFClosure { +public: + DiffuseRampClosure() : CBSDFClosure(LABEL_DIFFUSE) {} + Color3 colors[8]; + float3 fcolors[8]; + + size_t memsize() const { return sizeof(*this); } + const char *name() const { return "diffuse_ramp"; } + + void setup() + { + sc.prim = this; + m_shaderdata_flag = bsdf_diffuse_ramp_setup(&sc); + + for(int i = 0; i < 8; i++) + fcolors[i] = TO_FLOAT3(colors[i]); + } + + bool mergeable(const ClosurePrimitive *other) const + { + return false; + } + + void blur(float roughness) + { + bsdf_diffuse_ramp_blur(&sc, roughness); + } + + void print_on(std::ostream &out) const + { + out << name() << " ((" << sc.N[0] << ", " << sc.N[1] << ", " << sc.N[2] << "))"; + } + + float3 eval_reflect(const float3 &omega_out, const float3 &omega_in, float& pdf) const + { + return bsdf_diffuse_ramp_eval_reflect(&sc, fcolors, omega_out, omega_in, &pdf); + } + + float3 eval_transmit(const float3 &omega_out, const float3 &omega_in, float& pdf) const + { + return bsdf_diffuse_ramp_eval_transmit(&sc, fcolors, omega_out, omega_in, &pdf); + } + + int sample(const float3 &Ng, + const float3 &omega_out, const float3 &domega_out_dx, const float3 &domega_out_dy, + float randu, float randv, + float3 &omega_in, float3 &domega_in_dx, float3 &domega_in_dy, + float &pdf, float3 &eval) const + { + return bsdf_diffuse_ramp_sample(&sc, fcolors, Ng, omega_out, domega_out_dx, domega_out_dy, + randu, randv, &eval, &omega_in, &domega_in_dx, &domega_in_dy, &pdf); + } +}; + +ClosureParam *closure_bsdf_diffuse_ramp_params() +{ + static ClosureParam params[] = { + CLOSURE_FLOAT3_PARAM(DiffuseRampClosure, sc.N), + CLOSURE_COLOR_ARRAY_PARAM(DiffuseRampClosure, colors, 8), + CLOSURE_STRING_KEYPARAM("label"), + CLOSURE_FINISH_PARAM(DiffuseRampClosure) + }; + return params; +} + +CLOSURE_PREPARE(closure_bsdf_diffuse_ramp_prepare, DiffuseRampClosure) + +CCL_NAMESPACE_END + |