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Diffstat (limited to 'intern/cycles/render/shader.h')
| -rw-r--r-- | intern/cycles/render/shader.h | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/intern/cycles/render/shader.h b/intern/cycles/render/shader.h deleted file mode 100644 index 44d88ac0e93..00000000000 --- a/intern/cycles/render/shader.h +++ /dev/null @@ -1,262 +0,0 @@ -/* - * Copyright 2011-2013 Blender Foundation - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef __SHADER_H__ -#define __SHADER_H__ - -#ifdef WITH_OSL -/* So no context pollution happens from indirectly included windows.h */ -# include "util/util_windows.h" -# include <OSL/oslexec.h> -#endif - -#include "kernel/kernel_types.h" -#include "render/attribute.h" - -#include "graph/node.h" - -#include "util/util_map.h" -#include "util/util_param.h" -#include "util/util_string.h" -#include "util/util_thread.h" -#include "util/util_types.h" - -CCL_NAMESPACE_BEGIN - -class Device; -class DeviceScene; -class Mesh; -class Progress; -class Scene; -class ShaderGraph; -struct float3; - -enum ShadingSystem { SHADINGSYSTEM_OSL, SHADINGSYSTEM_SVM }; - -/* Keep those in sync with the python-defined enum. */ -enum VolumeSampling { - VOLUME_SAMPLING_DISTANCE = 0, - VOLUME_SAMPLING_EQUIANGULAR = 1, - VOLUME_SAMPLING_MULTIPLE_IMPORTANCE = 2, - - VOLUME_NUM_SAMPLING, -}; - -enum VolumeInterpolation { - VOLUME_INTERPOLATION_LINEAR = 0, - VOLUME_INTERPOLATION_CUBIC = 1, - - VOLUME_NUM_INTERPOLATION, -}; - -enum DisplacementMethod { - DISPLACE_BUMP = 0, - DISPLACE_TRUE = 1, - DISPLACE_BOTH = 2, - - DISPLACE_NUM_METHODS, -}; - -/* Shader describing the appearance of a Mesh, Light or Background. - * - * While there is only a single shader graph, it has three outputs: surface, - * volume and displacement, that the shader manager will compile and execute - * separately. */ - -class Shader : public Node { - public: - NODE_DECLARE - - /* shader graph */ - ShaderGraph *graph; - - NODE_SOCKET_API(int, pass_id) - - /* sampling */ - NODE_SOCKET_API(bool, use_mis) - NODE_SOCKET_API(bool, use_transparent_shadow) - NODE_SOCKET_API(bool, heterogeneous_volume) - NODE_SOCKET_API(VolumeSampling, volume_sampling_method) - NODE_SOCKET_API(int, volume_interpolation_method) - NODE_SOCKET_API(float, volume_step_rate) - - /* displacement */ - NODE_SOCKET_API(DisplacementMethod, displacement_method) - - float prev_volume_step_rate; - - /* synchronization */ - bool need_update_uvs; - bool need_update_attribute; - bool need_update_displacement; - - /* If the shader has only volume components, the surface is assumed to - * be transparent. - * However, graph optimization might remove the volume subgraph, but - * since the user connected something to the volume output the surface - * should still be transparent. - * Therefore, has_volume_connected stores whether some volume sub-tree - * was connected before optimization. */ - bool has_volume_connected; - - /* information about shader after compiling */ - bool has_surface; - bool has_surface_emission; - bool has_surface_transparent; - bool has_surface_raytrace; - bool has_volume; - bool has_displacement; - bool has_surface_bssrdf; - bool has_bump; - bool has_bssrdf_bump; - bool has_surface_spatial_varying; - bool has_volume_spatial_varying; - bool has_volume_attribute_dependency; - bool has_integrator_dependency; - - /* requested mesh attributes */ - AttributeRequestSet attributes; - - /* determined before compiling */ - uint id; - -#ifdef WITH_OSL - /* osl shading state references */ - OSL::ShaderGroupRef osl_surface_ref; - OSL::ShaderGroupRef osl_surface_bump_ref; - OSL::ShaderGroupRef osl_volume_ref; - OSL::ShaderGroupRef osl_displacement_ref; -#endif - - Shader(); - ~Shader(); - - /* Checks whether the shader consists of just a emission node with fixed inputs that's connected - * directly to the output. - * If yes, it sets the content of emission to the constant value (color * strength), which is - * then used for speeding up light evaluation. */ - bool is_constant_emission(float3 *emission); - - void set_graph(ShaderGraph *graph); - void tag_update(Scene *scene); - void tag_used(Scene *scene); - - /* Return true when either of the surface or displacement socket of the output node is linked. - * This should be used to ensure that surface attributes are also requested even when only the - * displacement socket is linked. */ - bool has_surface_link() const - { - return has_surface || has_displacement; - } - - bool need_update_geometry() const; -}; - -/* Shader Manager virtual base class - * - * From this the SVM and OSL shader managers are derived, that do the actual - * shader compiling and device updating. */ - -class ShaderManager { - public: - enum : uint32_t { - SHADER_ADDED = (1 << 0), - SHADER_MODIFIED = (1 << 2), - INTEGRATOR_MODIFIED = (1 << 3), - - /* tag everything in the manager for an update */ - UPDATE_ALL = ~0u, - - UPDATE_NONE = 0u, - }; - - static ShaderManager *create(int shadingsystem); - virtual ~ShaderManager(); - - virtual void reset(Scene *scene) = 0; - - virtual bool use_osl() - { - return false; - } - - void host_update(Scene *scene, Progress &progress); - virtual void host_update_specific(Scene *scene, Progress &progress) = 0; - - /* device update */ - void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress &progress); - virtual void device_update_specific(Device *device, - DeviceScene *dscene, - Scene *scene, - Progress &progress) = 0; - virtual void device_free(Device *device, DeviceScene *dscene, Scene *scene) = 0; - - void device_update_common(Device *device, DeviceScene *dscene, Scene *scene, Progress &progress); - void device_free_common(Device *device, DeviceScene *dscene, Scene *scene); - - /* get globally unique id for a type of attribute */ - uint get_attribute_id(ustring name); - uint get_attribute_id(AttributeStandard std); - - /* get shader id for mesh faces */ - int get_shader_id(Shader *shader, bool smooth = false); - - /* add default shaders to scene, to use as default for things that don't - * have any shader assigned explicitly */ - static void add_default(Scene *scene); - - /* Selective nodes compilation. */ - uint get_kernel_features(Scene *scene); - - static void free_memory(); - - float linear_rgb_to_gray(float3 c); - - string get_cryptomatte_materials(Scene *scene); - - void tag_update(Scene *scene, uint32_t flag); - - bool need_update() const; - - void init_xyz_transforms(); - - protected: - ShaderManager(); - - uint32_t update_flags; - - typedef unordered_map<ustring, uint, ustringHash> AttributeIDMap; - AttributeIDMap unique_attribute_id; - - static thread_mutex lookup_table_mutex; - static vector<float> beckmann_table; - static bool beckmann_table_ready; - - size_t beckmann_table_offset; - - uint get_graph_kernel_features(ShaderGraph *graph); - - thread_spin_lock attribute_lock_; - - float3 xyz_to_r; - float3 xyz_to_g; - float3 xyz_to_b; - float3 rgb_to_y; -}; - -CCL_NAMESPACE_END - -#endif /* __SHADER_H__ */ |