diff options
author | Ton Roosendaal <ton@blender.org> | 2011-04-27 15:58:34 +0400 |
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committer | Ton Roosendaal <ton@blender.org> | 2011-04-27 15:58:34 +0400 |
commit | da376e0237517543aa21740ee2363234ee1c20ae (patch) | |
tree | 014a513ed8d0eccc5e54fef42347781e85bae56a /intern/cycles/render/osl.h | |
parent | 693780074388111e7b9ef1c3825e462f398dc6c4 (diff) |
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later.
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
Diffstat (limited to 'intern/cycles/render/osl.h')
-rw-r--r-- | intern/cycles/render/osl.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/intern/cycles/render/osl.h b/intern/cycles/render/osl.h new file mode 100644 index 00000000000..329cf9a4828 --- /dev/null +++ b/intern/cycles/render/osl.h @@ -0,0 +1,103 @@ +/* + * Copyright 2011, Blender Foundation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __OSL_H__ +#define __OSL_H__ + +#include "util_set.h" + +#include "shader.h" + +#ifdef WITH_OSL +#include <OSL/oslexec.h> +#endif + +CCL_NAMESPACE_BEGIN + +class Device; +class DeviceScene; +class ImageManager; +class OSLRenderServices; +class OSLGlobals; +class Scene; +class ShaderGraph; +class ShaderNode; +class ShaderOutput; + +#ifdef WITH_OSL + +/* Shader Manage */ + +class OSLShaderManager : public ShaderManager { +public: + OSLShaderManager(); + ~OSLShaderManager(); + + void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress); + void device_free(Device *device, DeviceScene *dscene); + +private: + OSL::ShadingSystem *ss; + OSL::TextureSystem *ts; + OSLRenderServices *services; + OSL::ErrorHandler errhandler; +}; + +#endif + +/* Graph Compiler */ + +class OSLCompiler { +public: + OSLCompiler(void *shadingsys); + void compile(OSLGlobals *og, Shader *shader); + + void add(ShaderNode *node, const char *name); + + void parameter(const char *name, float f); + void parameter_color(const char *name, float3 f); + void parameter_vector(const char *name, float3 f); + void parameter_normal(const char *name, float3 f); + void parameter_point(const char *name, float3 f); + void parameter(const char *name, int f); + void parameter(const char *name, const char *s); + void parameter(const char *name, ustring str); + void parameter(const char *name, const Transform& tfm); + + ShaderType output_type() { return current_type; } + + bool background; + +private: + string id(ShaderNode *node); + void compile_type(Shader *shader, ShaderGraph *graph, ShaderType type); + bool node_skip_input(ShaderNode *node, ShaderInput *input); + string compatible_name(const char *name); + + void find_dependencies(set<ShaderNode*>& dependencies, ShaderInput *input); + void generate_nodes(const set<ShaderNode*>& nodes); + + void *shadingsys; + ShaderType current_type; + Shader *current_shader; +}; + +CCL_NAMESPACE_END + +#endif /* __OSL_H__ */ + |