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Diffstat (limited to 'intern/cycles/kernel/osl/background.cpp')
-rw-r--r-- | intern/cycles/kernel/osl/background.cpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/background.cpp b/intern/cycles/kernel/osl/background.cpp new file mode 100644 index 00000000000..c35119ae9cf --- /dev/null +++ b/intern/cycles/kernel/osl/background.cpp @@ -0,0 +1,100 @@ +/* + * 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" + +CCL_NAMESPACE_BEGIN + +using namespace OSL; + +/// Generic background closure +/// +/// We only have a background closure for the shaders +/// to return a color in background shaders. No methods, +/// only the weight is taking into account +/// +class GenericBackgroundClosure : public BackgroundClosure { +public: + GenericBackgroundClosure() { } + + void setup() {}; + + size_t memsize () const { return sizeof(*this); } + + const char *name () const { return "background"; } + + void print_on (std::ostream &out) const { + out << name() << " ()"; + } + +}; + + +/// Holdout closure +/// +/// This will be used by the shader to mark the +/// amount of holdout for the current shading +/// point. No parameters, only the weight will be +/// used +/// +class HoldoutClosure : ClosurePrimitive { +public: + HoldoutClosure () : ClosurePrimitive (Holdout) { } + + void setup() {}; + + size_t memsize () const { return sizeof(*this); } + + const char *name () const { return "holdout"; } + + void print_on (std::ostream &out) const { + out << name() << " ()"; + } +}; + +ClosureParam closure_background_params[] = { + CLOSURE_STRING_KEYPARAM("label"), + CLOSURE_FINISH_PARAM(GenericBackgroundClosure) }; + +CLOSURE_PREPARE(closure_background_prepare, GenericBackgroundClosure) + +ClosureParam closure_holdout_params[] = { + CLOSURE_FINISH_PARAM(HoldoutClosure) }; + +CLOSURE_PREPARE(closure_holdout_prepare, HoldoutClosure) + +CCL_NAMESPACE_END + |