Ok, so I tried to mix lesson 10 and 12, reading from a file, into a display list. Im not getting any errors (which took a whiel to get to), and I was sure it would work, but when I run the program it says its encountered an error and wants me to send a report to microsoft. I know I'm beyond my abilities... but that was the whole point of this project :D Heres the important stuff: #include <windows.h> // Header File For Windows #include <math.h> #include <stdio.h> #include <gl\gl.h> // Header File For The OpenGL32 Library #include <gl\glu.h> // Header File For The GLu32 Library #include <gl\glaux.h> // Header File For The Glaux Library HDC hDC=NULL; // Private GDI Device Context HGLRC hRC=NULL; // Permanent Rendering Context HWND hWnd=NULL; // Holds Our Window Handle HINSTANCE hInstance; // Holds The Instance Of The Application bool keys[256]; // Array Used For The Keyboard Routine bool active=TRUE; // Window Active Flag Set To TRUE By Default bool fullscreen=TRUE; // Fullscreen Flag Set To Fullscreen Mode By Default const float piover180 = 0.0174532925f; float heading; float xpos; float zpos; GLfloat yrot; // Y Rotation GLfloat lookupdown = 0.0f; GLfloat z=0.0f; GLuint texture[2]; // My Pretty Pictures GLuint astr; // Display List GLuint sun; // Display List typedef struct tagVERTEX // Where The Vertex Point Go { float x, y, z; float u, v; } VERTEX; typedef struct tagQUAD // Collects Vertex Points { VERTEX vertex[4]; } QUAD; typedef struct tagSECTOR // Loads Sector { int numquads; QUAD* quad; } SECTOR; SECTOR sector1; // Creats An Instance Of SECTOR GLfloat LightDiffuse[]= { 1.0f, 1.0f, 1.0f, 1.0f }; // Position Of Light Source GLfloat LightPosition[]={ 0.0f, 0.0f, -50.0f, 1.0f }; // Coords Of Light Source LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); // Declaration For WndProc //------------------------------------ void readstr(FILE *f,char *string) // Reads From A File { do { fgets(string, 255, f); } while ((string[0] == '/') || (string[0] == '\n'));// So We Dont Get The Spaces Or Comments return; } //------------------------------------ void SetupWorld() // Read From Data File { float x, y, z, u, v; // Coord Vars int numquads; // Number Of Quads In Total FILE *filein; char oneline[255]; filein = fopen("data/world.txt", "rt"); // Makes A Handle readstr(filein, oneline); sscanf(oneline, "NUMPOLLIES %d/n", &numquads); // Looks For How Many Quads In File sector1.quad = new QUAD[numquads]; // New QUAD Object sector1.numquads = numquads; for (int loop = 0; loop< numquads; loop++) // Start Of Loop, Collects Coords { for (int vert = 0; vert < 4; vert++) { readstr(filein,oneline); sscanf(oneline, "%f %f %f %f %f", &x, &y, &z, &u, &v); sector1.quad[loop].vertex[vert].x = x; sector1.quad[loop].vertex[vert].y = y; sector1.quad[loop].vertex[vert].z = z; sector1.quad[loop].vertex[vert].u = u; sector1.quad[loop].vertex[vert].v = v; } } fclose(filein); return; } //------------------------------------ AUX_RGBImageRec *LoadBMP(char *Filename) // Checks Textures { FILE *File=NULL; if (!Filename) { return NULL; } File=fopen(Filename,"r"); if (File) { fclose(File); return auxDIBImageLoad(Filename); } return NULL; } //------------------------------------ int LoadGLTextures() // Gets Textures { int Status=FALSE; AUX_RGBImageRec *TextureImage[2]; memset(TextureImage,0,sizeof(void *)*1); if (TextureImage[0]=LoadBMP("Data/Astr.bmp")) // Texture One { Status=TRUE; glGenTextures(2, &texture[0]); glBindTexture(GL_TEXTURE_2D, texture[0]); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST); gluBuild2DMipmaps(GL_TEXTURE_2D, 2, TextureImage[0]->sizeX, TextureImage[0]->sizeY, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data); } if (TextureImage[0]=LoadBMP("Data/Sun.bmp")) // Texture Two { Status=TRUE; glGenTextures(2, &texture[1]); glBindTexture(GL_TEXTURE_2D, texture[1]); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST); gluBuild2DMipmaps(GL_TEXTURE_2D, 2, TextureImage[0]->sizeX, TextureImage[0]->sizeY, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data); } if (TextureImage[0]) // Free The Memory { if (TextureImage[0]->data) { free(TextureImage[0]->data); } free(TextureImage[0]); } return Status; } //------------------------------------ GLvoid BuildLists() // Make A BuildList { astr=glGenLists(2); glNewList(astr,GL_COMPILE); GLfloat x_m, y_m, z_m, u_m, v_m; int numquads; numquads = sector1.numquads; for (int loop_m = 0; loop_m < numquads; loop_m++) // Read BuildList From File { glBegin(GL_QUADS); glNormal3f ( 0.0f, 0.0f, 1.0f); x_m = sector1.quad[loop_m].vertex[0].x; y_m = sector1.quad[loop_m].vertex[0].y; z_m = sector1.quad[loop_m].vertex[0].z; u_m = sector1.quad[loop_m].vertex[0].u; v_m = sector1.quad[loop_m].vertex[0].v; glTexCoord2f(u_m, v_m);glVertex3f(x_m, y_m, z_m); x_m = sector1.quad[loop_m].vertex[1].x; y_m = sector1.quad[loop_m].vertex[1].y; z_m = sector1.quad[loop_m].vertex[1].z; u_m = sector1.quad[loop_m].vertex[1].u; v_m = sector1.quad[loop_m].vertex[1].v; glTexCoord2f(u_m, v_m);glVertex3f(x_m, y_m, z_m); x_m = sector1.quad[loop_m].vertex[2].x; y_m = sector1.quad[loop_m].vertex[2].y; z_m = sector1.quad[loop_m].vertex[2].z; u_m = sector1.quad[loop_m].vertex[2].u; v_m = sector1.quad[loop_m].vertex[2].v; glTexCoord2f(u_m, v_m);glVertex3f(x_m, y_m, z_m); x_m = sector1.quad[loop_m].vertex[3].x; y_m = sector1.quad[loop_m].vertex[3].y; z_m = sector1.quad[loop_m].vertex[3].z; u_m = sector1.quad[loop_m].vertex[3].u; v_m = sector1.quad[loop_m].vertex[3].v; glTexCoord2f(u_m, v_m);glVertex3f(x_m, y_m, z_m); glEnd(); glEndList(); } } //------------------------------------ GLvoid ReSizeGLScene(GLsizei width, GLsizei height) // Resize And Initialize The GL Window { if (height==0) // Prevent A Divide By Zero By { height=1; // Making Height Equal One } glViewport(0,0,width,height); // Reset The Current Viewport glMatrixMode(GL_PROJECTION); // Select The Projection Matrix glLoadIdentity(); // Reset The Projection Matrix // Calculate The Aspect Ratio Of The Window gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f); glMatrixMode(GL_MODELVIEW); // Select The Modelview Matrix glLoadIdentity(); // Reset The Modelview Matrix } //------------------------------------ int InitGL(GLvoid) // All Setup For OpenGL Goes Here { if (!LoadGLTextures()) // Jump To Texture Loading Routine { return FALSE; // If Texture Didn't Load Return FALSE } BuildLists(); glEnable(GL_TEXTURE_2D); glShadeModel(GL_SMOOTH); // Enable Smooth Shading glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background glClearDepth(1.0f); // Depth Buffer Setup glEnable(GL_DEPTH_TEST); // Enables Depth Testing glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Really Nice Perspective Calculations glLightfv(GL_LIGHT1, GL_DIFFUSE, LightDiffuse); glLightfv(GL_LIGHT1, GL_POSITION, LightPosition); glEnable(GL_LIGHT1); return TRUE; // Initialization Went OK } //------------------------------------ int DrawGLScene(GLvoid) // Here's Where We Do All The Drawing { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer glLoadIdentity(); // Reset The Current Modelview Matrix glTranslatef(0.0f,0.0f,-10.0f); glBindTexture(GL_TEXTURE_2D, texture[1]); glCallList(astr); return TRUE; // Keep Going } This is whats in the world.txt file: " NUMPOLLIES 1 // 1Sun! -3.0 0.0 0.0 0.0 0.0 -3.0 3.0 0.0 0.0 0.0 3.0 3.0 0.0 0.0 0.0 3.0 0.0 0.0 0.0 0.0 " Any help would be great, sorry I'm such a bad coder in advance. -Matt

I amended lesson 10 with your code, although all i get is a grey screen there are no errors.

This is a double post. I recommend replying to the other version because the post has been edited to use [source] tags and is therefore clearer.

Enigma