bool initProgram()
{
bool Validated(true);
if(Validated)
{
compiler Compiler;
std::vector<GLuint> ShaderName(shader::MAX);
ShaderName[shader::VERT] = Compiler.create(GL_VERTEX_SHADER, getDataDirectory() + VERT_SHADER_SOURCE, "--version 150 --profile core");
ShaderName[shader::FRAG] = Compiler.create(GL_FRAGMENT_SHADER, getDataDirectory() + FRAG_SHADER_SOURCE, "--version 150 --profile core");
Validated = Validated && Compiler.check();
ProgramName = glCreateProgram();
glAttachShader(ProgramName, ShaderName[shader::VERT]);
glAttachShader(ProgramName, ShaderName[shader::FRAG]);
glBindAttribLocation(ProgramName, semantic::attr::POSITION, "Position");
glBindAttribLocation(ProgramName, semantic::attr::TEXCOORD, "Texcoord");
glBindFragDataLocation(ProgramName, semantic::frag::COLOR, "Color");
glLinkProgram(ProgramName);
Validated = Validated && Compiler.checkProgram(ProgramName);
}
if(Validated)
{
UniformTransform = glGetUniformBlockIndex(ProgramName, "transform");
UniformDiffuse = glGetUniformLocation(ProgramName, "Diffuse");
}
Validated = Validated && this->checkError("initProgram");
return Validated;
}
void display() {
// Erase the window and the depth buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Enable Z-buffering in OpenGL
glEnable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
// Set Shader Mode
use_shader(v_shader_mode);
Project();
// Switch to manipulating the model matrix
glMatrixMode(GL_MODELVIEW);
// Undo previous transformations
glLoadIdentity();
// Check if we need to move //
if (v_move_forward)
Move(forward);
else if (v_move_backward)
Move(backward);
if (v_move_left)
Move(left);
else if (v_move_right)
Move(right);
// Viewport
vector3 look_pos = get_look_position();
gluLookAt(v_camera_location.x, v_camera_location.y, v_camera_location.z,
look_pos.x, look_pos.y, look_pos.z, 0, 1, 0);
// Scene
glColor3f(.4, .4, .4);
draw_structure();
glTranslatef(0, -1, 0);
// Log
glColor3f(1, 1, 1);
glWindowPos2i(5, 5);
Print("P (Shader Mode): %s -- K/L (Ambient Light): %2.0f%%", ShaderName(),
100 * v_ambient_intensity);
glFlush();
glutSwapBuffers();
glutPostRedisplay();
}
