forked from bartvdbraak/blender
f99343d3b8
Currently supported passes: * Combined, Z, Normal, Object Index, Material Index, Emission, Environment, Diffuse/Glossy/Transmission x Direct/Indirect/Color Not supported yet: * UV, Vector, Mist Only enabled for CPU devices at the moment, will do GPU tweaks tommorrow, also for environment importance sampling. Documentation: http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Passes
126 lines
3.3 KiB
C++
126 lines
3.3 KiB
C++
/*
|
|
* 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 __SHADER_H__
|
|
#define __SHADER_H__
|
|
|
|
#include "attribute.h"
|
|
#include "kernel_types.h"
|
|
|
|
#include "util_map.h"
|
|
#include "util_param.h"
|
|
#include "util_string.h"
|
|
#include "util_types.h"
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
class Device;
|
|
class DeviceScene;
|
|
class Mesh;
|
|
class Progress;
|
|
class Scene;
|
|
class ShaderGraph;
|
|
struct float3;
|
|
|
|
/* 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:
|
|
/* name */
|
|
string name;
|
|
int pass_id;
|
|
|
|
/* shader graph */
|
|
ShaderGraph *graph;
|
|
|
|
/* shader graph with auto bump mapping included, we compile two shaders,
|
|
with and without bump, because the displacement method is a mesh
|
|
level setting, so we need to handle both */
|
|
ShaderGraph *graph_bump;
|
|
|
|
/* sampling */
|
|
bool sample_as_light;
|
|
bool homogeneous_volume;
|
|
|
|
/* synchronization */
|
|
bool need_update;
|
|
bool need_update_attributes;
|
|
|
|
/* information about shader after compiling */
|
|
bool has_surface;
|
|
bool has_surface_emission;
|
|
bool has_surface_transparent;
|
|
bool has_volume;
|
|
bool has_displacement;
|
|
|
|
/* requested mesh attributes */
|
|
AttributeRequestSet attributes;
|
|
|
|
Shader();
|
|
~Shader();
|
|
|
|
void set_graph(ShaderGraph *graph);
|
|
void tag_update(Scene *scene);
|
|
};
|
|
|
|
/* 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:
|
|
bool need_update;
|
|
|
|
static ShaderManager *create(Scene *scene);
|
|
virtual ~ShaderManager();
|
|
|
|
/* device update */
|
|
virtual void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress) = 0;
|
|
virtual void device_free(Device *device, DeviceScene *dscene) = 0;
|
|
|
|
void device_update_common(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
|
|
void device_free_common(Device *device, DeviceScene *dscene);
|
|
|
|
/* get globally unique id for a type of attribute */
|
|
uint get_attribute_id(ustring name);
|
|
uint get_attribute_id(Attribute::Standard std);
|
|
|
|
/* get shader id for mesh faces */
|
|
int get_shader_id(uint shader, Mesh *mesh = NULL, 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);
|
|
|
|
protected:
|
|
ShaderManager();
|
|
|
|
typedef unordered_map<ustring, uint, ustringHash> AttributeIDMap;
|
|
AttributeIDMap unique_attribute_id;
|
|
};
|
|
|
|
CCL_NAMESPACE_END
|
|
|
|
#endif /* __SHADER_H__ */
|
|
|