void GlShaderProgram::addShaderFromSourceFile(const ShaderType shaderType, const std::string &shaderSrcFilename) {
GlShader *shader = new GlShader(shaderType);
shader->setAnonymousCreation(true);
shader->compileFromSourceFile(shaderSrcFilename);
addShader(shader);
}
void GlShaderProgram::addGeometryShaderFromSourceFile(const std::string &geometryShaderSrcFilename, GLenum inputPrimitiveType, GLenum outputPrimitiveType) {
GlShader *shader = new GlShader(inputPrimitiveType, outputPrimitiveType);
shader->setAnonymousCreation(true);
shader->compileFromSourceFile(geometryShaderSrcFilename);
addShader(shader);
}