void GLSLShader::initialize()
{
//#0 PREPARE SHADER
GLuint vertexShader;
GLuint fragmentShader;
vertexShader = prepareShader("basicNew.vert", GLSL::VERTEX);
fragmentShader = prepareShader("basicNew.frag", GLSL::FRAGMENT);
//#1 CREATE PROGRAM HANDLER
programHandle = glCreateProgram();
//programHandle = glCreateProgram();
if(0 == programHandle)
{
logString += "Error creating program object\n";
exit(1);
}
//#2 ATTACH SHADER TO PROGRAM
glAttachShader( programHandle, fragmentShader );
glAttachShader( programHandle, vertexShader );
/////////////////////////////////////////////////////////////////////////////////////////////////////
std::vector<Eigen::Vector4f> vdata;
vdata.push_back(Eigen::Vector4f(-1, -1, 0, 1));
vdata.push_back(Eigen::Vector4f(1, -1, 0, 1));
vdata.push_back(Eigen::Vector4f(0, 1, 0, 1));
std::vector<Eigen::Vector4f> vdataColor;
vdataColor.push_back(Eigen::Vector4f(1, 0, 0, 1));
vdataColor.push_back(Eigen::Vector4f(0, 1, 0, 1));
vdataColor.push_back(Eigen::Vector4f(0, 0, 1, 1));
createVertexAttribute(0, "in_Vertex_Position", vdata);
// createVertexTFAttribute(0, "in_Vertex_Position", vdata);
size = vdata.size() * 4;
createVertexTFAttribute2("Color");
// createVertexAttribute(1, "in_Vertex_Color", vdataColor);
//////////////////////////////////////////////////////////////////////
//#3 LINK PROGRAM
link();
//#4 USE PROGRAM
if(isLinked())use();
printActiveAttribs();
}
void SmokeSource::createArrayBuffer(GLfloat* vertex_data, GLfloat* position_data)
{
GLuint error;
// create vertex array
glGenVertexArrays(1, &vertex_array);
if ((error = glGetError()) != GL_NO_ERROR)
std::cerr << "init buffer error, gen vertex array: " << error << std::endl;
// bind vertex array
glBindVertexArray(vertex_array);
if ((error = glGetError()) != GL_NO_ERROR)
std::cerr << "init buffer error, bind vertex array: " << error << std::endl;
createVertexAttribute(vertex_data);
createTextureAttribute(texture_data);
createPositionAttribute();
}
std::shared_ptr< GLSLMaterial > MaterialFactory::createMaterial( tinyxml2::XMLElement* node , const aiScene* scene ) {
std::shared_ptr< GLSLMaterial > myMaterial = std::shared_ptr< GLSLMaterial > ( new GLSLMaterial() );
for( tinyxml2::XMLElement* loopNode = node->FirstChildElement(); loopNode != NULL; loopNode=loopNode->NextSiblingElement() ) {
if( strcmp( loopNode->Name() , "vertex_attribute" ) == 0 ) {
myMaterial->addVertexAttribute( createVertexAttribute( loopNode , scene ) );
}
else if( strcmp( loopNode->Name() , "program" ) == 0 ) {
myMaterial->setProgram( createProgram( loopNode , myMaterial ) );
}
}
return myMaterial;
}
