🔒 Locked

lighting question

Started by teslaa66 Oct 21, 2008 at 6:40 PM 2 replies 850+ views

Original Post

Oct 21, 2008 at 6:40 PM

Basically I have made a game and loaded in md2 models (with normals) that i can move about in the scene however ive noticed the lighting effect on them does not change all the shading stays the same regardless to the direction i turn the models to. Could this be to do with the fact all my lighting is contained in the init function and is only called once so is sets up all the shading on the model once? how would i do it so that the lighting updates when i move my model? is it common to call the init from the display to update the lighting?

djsteffey

165

djsteffey

Oct 21, 2008 at 6:48 PM

post the code of your lighting setup and rendering code

teslaa66

Author

teslaa66

Oct 21, 2008 at 7:01 PM

void init(){  glEnable(GL_DEPTH_TEST);  glEnable(GL_LIGHTING);  glEnable(GL_NORMALIZE);  glEnable(GL_BLEND);  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);  glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);	  //Light 0 Properties/Position  GLfloat ambientLight[]={0.9,0.9,0.9,1.0};  GLfloat diffuseLight[]={0.3,0.3,0.3,1.0};  GLfloat specularLight[]={0.2,0.2,0.2,1.0};  glLightfv(GL_LIGHT0, GL_AMBIENT, ambientLight);  glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuseLight);  glLightfv(GL_LIGHT0, GL_SPECULAR, specularLight);  glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);  glEnable(GL_LIGHT0);		  loadTexture();}void display (void){   glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);   glLoadMatrixf(cameraMatrix);   glEnable(GL_TEXTURE_2D);   //Draw everything   glEnd();   glFlush();   glutSwapBuffers();}

thats my code. If i call the init in the display it updates the lighting on all the stuff drawn in the display but this isnt common?

mmakrzem

156

mmakrzem

Oct 23, 2008 at 8:04 AM

try adding glMatrixMode(GL_MODELVIEW); after glClear to make sure that you are updating the correct matrix.

Topic Locked

This topic has been locked by a moderator. New replies are not allowed.