GLuint createProgramFromFiles(const char* vertShaderPath, const char* fragShaderPath, size_t definesCount, const char** defines)
{
GLuint program = glCreateProgram();
if (vertShaderPath)
{
GLuint vertShader = createShaderFromFile(GL_VERTEX_SHADER, vertShaderPath, definesCount, defines);
glAttachShader(program, vertShader);
glDeleteShader(vertShader);
}
if (fragShaderPath)
{
GLuint fragShader = createShaderFromFile(GL_FRAGMENT_SHADER, fragShaderPath, definesCount, defines);
glAttachShader(program, fragShader);
glDeleteShader(fragShader);
}
glLinkProgram(program);
const size_t LOG_STR_LEN = 1024;
char infoLog[LOG_STR_LEN] = {0};
GLsizei length;
glGetProgramInfoLog(program, LOG_STR_LEN-1, &length, infoLog);
infoLog[length] = 0;
if (infoLog[0])
{
logging::message("%s\n", infoLog);
}
return program;
}
int init()
{
// Place one-time initialization code here
// load model
model = loadModel("../models/various/teapot.obj");
setModelCenter(model, 0.f, 0.f, 0.f);
setModelRadius(model, 0.3f);
// Create vertex shader
GLuint vertexShader = createShaderFromFile(GL_VERTEX_SHADER, "lab3-6.vs");
if (!vertexShader)
return 0;
// Create fragment shader
GLuint fragmentShader = createShaderFromFile(GL_FRAGMENT_SHADER, "lab3-6.fs");
if (!fragmentShader)
return 0;
// Create shader program
shaderProgram = createShaderProgram(vertexShader, fragmentShader);
if (!shaderProgram)
return 0;
shaderTimeLocation = getUniformLocation(shaderProgram, "time");
return 1;
}
