GLuint loadShaderG(char * vertPath, char * fragPath, char * geoPath,
std::vector<const char*> layoutLocations)
{
Logger()<< "Creating Shader" << std::endl;
Logger() <<"Vertex: " << vertPath << std::endl;
GLuint vertID = glCreateShader(GL_VERTEX_SHADER);
loadShaderPart(vertID, vertPath);
Logger() <<"Fragment: "<< fragPath << std::endl;
GLuint fragID = glCreateShader(GL_FRAGMENT_SHADER);
loadShaderPart(fragID, fragPath);
Logger() <<"Geometry: "<< geoPath << std::endl;
GLuint geoID = glCreateShader(GL_GEOMETRY_SHADER);
loadShaderPart(geoID, geoPath);
GLuint programID = glCreateProgram();
glAttachShader(programID, vertID);
glAttachShader(programID, fragID);
glAttachShader(programID, geoID);
createProgram(programID, layoutLocations);
glDeleteShader(vertID);
glDeleteShader(fragID);
glDeleteShader(geoID);
return programID;
}
GLuint loadShader(const char* vertexFile, const char* fragmentFile)
{
GLuint vert, frag, program;
if (oglError() != GL_NO_ERROR) /* just in case an error occurred beforehand */
printf("NOTE: GL error set before call to loadShader()\n");
/* load vertex and fragment shaders */
vert = loadShaderPart(vertexFile, GL_VERTEX_SHADER);
frag = loadShaderPart(fragmentFile, GL_FRAGMENT_SHADER);
if (!vert && !frag)
return 0;
/* create the shader program object */
program = glCreateProgram();
/* attach the shader objects to the program */
if (vert) glAttachShader(program, vert);
if (frag) glAttachShader(program, frag);
/* link the attached shader objects to create the shader executable */
glLinkProgram(program);
/* check for errors */
programError(program);
/* now it's compiled we don't need the intermediates */
if (vert) glDeleteShader(vert);
if (frag) glDeleteShader(frag);
/* return our shader program */
oglError();
return program;
}
