/usr/include/SurgSim/Graphics/OsgMaterial.h is in libopensurgsim-dev 0.7.0-6ubuntu1.
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// Copyright 2013-2016, SimQuest Solutions Inc.
//
// 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 SURGSIM_GRAPHICS_OSGMATERIAL_H
#define SURGSIM_GRAPHICS_OSGMATERIAL_H
#include <boost/any.hpp>
#include <osg/Material>
#include <osg/StateSet>
#include <set>
#include "SurgSim/Graphics/Material.h"
namespace SurgSim
{
namespace Graphics
{
class MaterialFace;
class OsgProgram;
class OsgUniformBase;
/// OSG-based implementation of a graphics material.
///
/// Wraps an osg::StateSet which is applied to the osg::Node of the Representation that is assigned this material.
///
/// \note
/// Only uniforms that subclass OsgUniformBase and shaders that subclass OsgShader can be assigned to this material.
/// \sa OsgUniformBase
/// \sa OsgShader
class OsgMaterial : public Material
{
public:
/// Constructor
/// \post The material has no uniforms and no shader.
explicit OsgMaterial(const std::string& name);
SURGSIM_CLASSNAME(SurgSim::Graphics::OsgMaterial);
/// Adds a uniform to this material
/// \param uniform Uniform to add
/// \note OsgMaterial only accepts subclasses of OsgUniformBase
void addUniform(std::shared_ptr<UniformBase> uniform) override;
void addUniform(const std::string& type, const std::string& name) override;
/// Adds and a uniform to this material and set its value
/// \param type the type of the uniform
/// \param name Name used in shader code to access this uniform
/// \param value The value for this uniform
void addUniform(const std::string& type, const std::string& name, const boost::any& value);
/// Removes a uniform from this material
/// \param uniform Uniform to remove
/// \return True if uniform was removed successfully, otherwise false
/// \note OsgMaterial only accepts subclasses of OsgUniformBase
bool removeUniform(std::shared_ptr<UniformBase> uniform) override;
bool removeUniform(const std::string& name) override;
size_t getNumUniforms() const override;
std::shared_ptr<UniformBase> getUniform(size_t index) const override;
std::shared_ptr<UniformBase> getUniform(const std::string& name) const override;
bool hasUniform(const std::string& name) const override;
/// Sets the shader used by this material
/// \param program Shader program
/// \return True if program was set successfully, otherwise false
/// \note OsgMaterial only accepts subclasses of OsgProgram
bool setProgram(std::shared_ptr<Program> program) override;
std::shared_ptr<Program> getProgram() const override;
void clearProgram() override;
/// \return the OSG state set with the material properties
osg::ref_ptr<osg::StateSet> getOsgStateSet() const;
bool doInitialize() override;
bool doWakeUp() override;
private:
/// OSG state set which provides material properties in the scenegraph
osg::ref_ptr<osg::StateSet> m_stateSet;
/// Uniforms used by this material
std::vector<std::shared_ptr<OsgUniformBase>> m_uniforms;
/// Shader used by this material
std::shared_ptr<OsgProgram> m_program;
};
/// Utility function to build the material.
/// \param vertexShaderName name of the vertex shader to be used, needs to be available on the path.
/// \param fragmentShaderName name of the fragment shader to be used, needs to be available on the path.
/// \return a valid material if all the shaders are found, nullptr otherwise
std::shared_ptr<OsgMaterial> buildMaterial(
const std::string& vertexShaderName,
const std::string& fragmentShaderName);
}; // namespace Graphics
}; // namespace SurgSim
#endif // SURGSIM_GRAPHICS_OSGMATERIAL_H
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