std::ifstream fileStream(filePath, std::ios::in);

if(!fileStream.is_open()) {

std::cerr << "Could not read file " << filePath << ". File does not exist." << std::endl;

return "";

}

std::string content { std::istreambuf_iterator<char>{fileStream}, {} };

return content; // Loading line-by-line will *not* work on some GPUs...

_shaderID = glCreateShader(type);

std::string source = readFile(path);

const char *sourcePtr = source.c_str();

glShaderSource(_shaderID, 1, &sourcePtr, NULL);

glCompileShader(_shaderID);

GLint success;

GLchar infoLog[512];

glGetShaderiv(_shaderID, GL_COMPILE_STATUS, &success);

if (!success)

{

glGetShaderInfoLog(_shaderID, 512, NULL, infoLog);

std::cout << "ERROR::SHADER::COMPILATION_FAILED\n" << infoLog << std::endl;

return false;

}

return true;