forked from bartvdbraak/blender
da376e0237
Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __OSL_SERVICES_H__
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#define __OSL_SERVICES_H__
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/* OSL Render Services
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*
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* Implementation of OSL render services, to retriever matrices, attributes,
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* textures and point clouds. In principle this should only be accessing
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* kernel data, but currently we also reach back into the Scene to retrieve
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* attributes.
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*/
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#include <OSL/oslexec.h>
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#include <OSL/oslclosure.h>
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#ifdef WITH_PARTIO
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#include <Partio.h>
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#endif
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CCL_NAMESPACE_BEGIN
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class Object;
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class Scene;
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class Shader;
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class ShaderData;
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class float3;
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class KernelGlobals;
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class OSLRenderServices : public OSL::RendererServices
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{
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public:
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OSLRenderServices();
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~OSLRenderServices();
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void thread_init(KernelGlobals *kernel_globals);
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bool get_matrix(OSL::Matrix44 &result, OSL::TransformationPtr xform, float time);
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bool get_inverse_matrix(OSL::Matrix44 &result, OSL::TransformationPtr xform, float time);
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bool get_matrix(OSL::Matrix44 &result, ustring from, float time);
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bool get_inverse_matrix(OSL::Matrix44 &result, ustring to, float time);
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bool get_array_attribute(void *renderstate, bool derivatives,
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ustring object, TypeDesc type, ustring name,
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int index, void *val);
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bool get_attribute(void *renderstate, bool derivatives, ustring object,
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TypeDesc type, ustring name, void *val);
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bool get_userdata(bool derivatives, ustring name, TypeDesc type,
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void *renderstate, void *val);
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bool has_userdata(ustring name, TypeDesc type, void *renderstate);
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void *get_pointcloud_attr_query(ustring *attr_names,
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TypeDesc *attr_types, int nattrs);
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int pointcloud(ustring filename, const OSL::Vec3 ¢er, float radius,
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int max_points, void *attr_query, void **attr_outdata);
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private:
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KernelGlobals *kernel_globals;
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#ifdef WITH_PARTIO
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/* OSL gets pointers to this but its definition is private.
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right now it only caches the types already converted to
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Partio constants. this is what get_pointcloud_attr_query
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returns */
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struct AttrQuery
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{
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/* names of the attributes to query */
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std::vector<ustring> attr_names;
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/* types as (enum Partio::ParticleAttributeType) of the
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attributes in the query */
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std::vector<int> attr_partio_types;
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/* for sanity checks, capacity of the output arrays */
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int capacity;
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};
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Partio::ParticlesData *get_pointcloud(ustring filename);
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/* keep a list so adding elements doesn't invalidate pointers */
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std::list<AttrQuery> m_attr_queries;
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#endif
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static ustring u_distance;
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static ustring u_index;
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static ustring u_camera;
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static ustring u_screen;
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static ustring u_raster;
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static ustring u_ndc;
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static ustring u_empty;
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};
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CCL_NAMESPACE_END
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#endif /* __OSL_SERVICES_H__ */
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