You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
#ifndef OPENMW_COMPONENTS_SHADERVISITOR_H
|
|
#define OPENMW_COMPONENTS_SHADERVISITOR_H
|
|
|
|
#include <osg/NodeVisitor>
|
|
|
|
namespace Resource
|
|
{
|
|
class ImageManager;
|
|
}
|
|
|
|
namespace Shader
|
|
{
|
|
|
|
class ShaderManager;
|
|
|
|
/// @brief Adjusts the given subgraph to render using shaders.
|
|
class ShaderVisitor : public osg::NodeVisitor
|
|
{
|
|
public:
|
|
ShaderVisitor(ShaderManager& shaderManager, Resource::ImageManager& imageManager, const std::string& defaultVsTemplate, const std::string& defaultFsTemplate);
|
|
|
|
/// By default, only bump mapped objects will have a shader added to them.
|
|
/// Setting force = true will cause all objects to render using shaders, regardless of having a bump map.
|
|
void setForceShaders(bool force);
|
|
|
|
/// Set whether lighting is clamped for visual compatibility with the fixed function pipeline.
|
|
void setClampLighting(bool clamp);
|
|
|
|
/// By default, only bump mapped objects use per-pixel lighting.
|
|
/// Setting force = true will cause all shaders to use per-pixel lighting, regardless of having a bump map.
|
|
void setForcePerPixelLighting(bool force);
|
|
|
|
/// Set if we are allowed to modify StateSets encountered in the graph (default true).
|
|
/// @par If set to false, then instead of modifying, the StateSet will be cloned and this new StateSet will be assigned to the node.
|
|
/// @par This option is useful when the ShaderVisitor is run on a "live" subgraph that may have already been submitted for rendering.
|
|
void setAllowedToModifyStateSets(bool allowed);
|
|
|
|
/// Automatically use normal maps if a file with suitable name exists (see normal map pattern).
|
|
void setAutoUseNormalMaps(bool use);
|
|
|
|
void setNormalMapPattern(const std::string& pattern);
|
|
void setNormalHeightMapPattern(const std::string& pattern);
|
|
|
|
void setAutoUseSpecularMaps(bool use);
|
|
|
|
void setSpecularMapPattern(const std::string& pattern);
|
|
|
|
virtual void apply(osg::Node& node);
|
|
|
|
virtual void apply(osg::Drawable& drawable);
|
|
virtual void apply(osg::Geometry& geometry);
|
|
|
|
void applyStateSet(osg::ref_ptr<osg::StateSet> stateset, osg::Node& node);
|
|
|
|
void pushRequirements(osg::Node& node);
|
|
void popRequirements();
|
|
|
|
private:
|
|
bool mForceShaders;
|
|
bool mClampLighting;
|
|
bool mForcePerPixelLighting;
|
|
bool mAllowedToModifyStateSets;
|
|
|
|
bool mAutoUseNormalMaps;
|
|
std::string mNormalMapPattern;
|
|
std::string mNormalHeightMapPattern;
|
|
|
|
bool mAutoUseSpecularMaps;
|
|
std::string mSpecularMapPattern;
|
|
|
|
ShaderManager& mShaderManager;
|
|
Resource::ImageManager& mImageManager;
|
|
|
|
struct ShaderRequirements
|
|
{
|
|
ShaderRequirements();
|
|
~ShaderRequirements();
|
|
|
|
// <texture stage, texture name>
|
|
std::map<int, std::string> mTextures;
|
|
|
|
bool mShaderRequired;
|
|
|
|
bool mColorMaterial;
|
|
// osg::Material::ColorMode
|
|
int mVertexColorMode;
|
|
bool mMaterialOverridden;
|
|
bool mNormalHeight; // true if normal map has height info in alpha channel
|
|
|
|
// -1 == no tangents required
|
|
int mTexStageRequiringTangents;
|
|
|
|
// the Node that requested these requirements
|
|
osg::Node* mNode;
|
|
};
|
|
std::vector<ShaderRequirements> mRequirements;
|
|
|
|
std::string mDefaultVsTemplate;
|
|
std::string mDefaultFsTemplate;
|
|
|
|
void createProgram(const ShaderRequirements& reqs);
|
|
bool adjustGeometry(osg::Geometry& sourceGeometry, const ShaderRequirements& reqs);
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|