New Paste :: Recent Pastes:: Add Line Numbers
Lighting by KoraToori
#include <stdlib.h> #include <stdio.h> #include <math.h> #include <GL/glfw.h> void Paint(void); void doInit(void); int main( int argc, char **argv ) { int mainWindow; // Window opened? int running; // Program running? int width, height; // Window dimensions glfwInit(); mainWindow = glfwOpenWindow(640, 480, // Open window 8, 8, 8, // Red, green, and blue bits for color buffer 8, // Bits for alpha buffer 24, // Bits for depth buffer (Z-buffer) 0, // Bits for stencil buffer GLFW_WINDOW); // Window (could be GLFW_FULLSCREEN) if(!mainWindow) // If we could not open a window, quit program { glfwTerminate(); return 0; } doInit(); do // Main rendering loop { Paint(); // Call scene drawing glfwSwapBuffers(); // Swap front and back buffers running = !glfwGetKey( GLFW_KEY_ESC ) && glfwGetWindowParam( GLFW_OPENED ); // Still going? } while(running); glfwTerminate(); return 0; } void doInit(void) { glfwSetWindowTitle("Lighting Test"); glfwEnable(GLFW_STICKY_KEYS); //Catch all keystrokes glMatrixMode(GL_PROJECTION); // Select projection matrix glLoadIdentity(); // "Take me home..." glfwGetWindowSize( &width, &height ); // Get window size height = height < 1 ? 1 : height; // Make sure that height is non-zero to avoid division by zero gluPerspective( // Set perspective view 45.0, // Field of view = 45 degrees (double)width/(double)height, // Window aspect (assumes square pixels) 0.1, // Near Z clipping plane 100.0 // Far Z clippling plane ); glMatrixMode(GL_MODELVIEW); // Select modelview matrix glLoadIdentity(); // Start with an identity matrix glShadeModel(GL_SMOOTH); glClearColor(0.0f, 0.0f, 0.0f, 0.0f); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glDepthFunc(GL_LEQUAL); glEnable(GL_DEPTH_TEST); glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); GLfloat LightAmbient[]= { 0.5f, 0.5f, 0.5f, 1.0f }; GLfloat LightDiffuse[]= { 1.0f, 1.0f, 1.0f, 1.0f }; GLfloat LightPosition[]= { 3.0f, 0.0f, 15.0f, 1.0f }; glLightfv(GL_LIGHT0, GL_AMBIENT, LightAmbient); glLightfv(GL_LIGHT0, GL_DIFFUSE, LightDiffuse); glLightfv(GL_LIGHT0, GL_POSITION,LightPosition); glEnable(GL_LIGHT0); } void Paint(void) //Main painting function { int width, height; // Window dimensions double t; // Time (in seconds) t = glfwGetTime(); // Get time glfwGetWindowSize( &width, &height ); // Get window size height = height < 1 ? 1 : height; // Avoid div by 0 glViewport( 0, 0, width, height ); // Set viewport glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen glLoadIdentity(); //Back to 0,0,0 glTranslatef(0.0f, 0.0f, -20.0f); glRotatef(90 * (float)t, 0.0, 1.0, 0.0); glBegin( GL_TRIANGLES ); glColor3f( 0.0f, 0.0f, 0.0f ); glVertex3f( -5.0f, -5.0f, 5.0f ); glColor3f( 0.0f, 0.0f, 0.3f ); glVertex3f( 5.0f, -5.0f, 5.0f ); glColor3f( 0.0f, 0.0f, 0.0f ); glVertex3f( 0.0f, 5.0f, 0.0f ); glColor3f( 0.0f, 0.0f, 0.0f ); glVertex3f( -5.0f, -5.0f, -5.0f ); glColor3f( 0.0f, 0.0f, 0.3f ); glVertex3f( -5.0f, -5.0f, 5.0f ); glColor3f( 0.0f, 0.0f, 0.0f ); glVertex3f( 0.0f, 5.0f, 0.0f ); glColor3f( 0.0f, 0.0f, 0.0f ); glVertex3f( 5.0f, -5.0f, -5.0f ); glColor3f( 0.0f, 0.0f, 0.3f ); glVertex3f( -5.0f, -5.0f, -5.0f ); glColor3f( 0.0f, 0.0f, 0.0f ); glVertex3f( 0.0f, 5.0f, 0.0f ); glColor3f( 0.0f, 0.0f, 0.0f ); glVertex3f( 5.0f, -5.0f, 5.0f ); glColor3f( 0.0f, 0.0f, 0.3f ); glVertex3f( 5.0f, -5.0f, -5.0f ); glColor3f( 0.0f, 0.0f, 0.0f ); glVertex3f( 0.0f, 5.0f, 0.0f ); glEnd(); }
