I new to opengl programming and attempting to write a simple asteroids game (yes I know!.. another one, but its a nice place to start). Putting the problem as simply as possible. I have asteroids flying around the screen which can be shot by the player. They then break up into several fragments with each vertex being red, green or blue and a life_counter set to zero. On each loop of the programme, I increment the life_count by 1. When the life_count is over 1000 I begin reducing the vertex colours to fade the individual fragments to black. see the code below. objects* fragment_link = first; while (fragment_link != NULL) { fragment_link->life_count++; if (fragment_link->life_count > 1000) { /* change colour for every vertex here */ for (count = 0; count < fragment_link->data.num_triangles; count++) { for (vert = 0; vert < 3; vert++) { r = fragment_link->data.triangles[count].vertex[vert].r; if (r > 0.0f) { r = r - 0.001f; fragment_link->data.triangles[count].vertex[vert].r = r; } g = fragment_link->data.triangles[count].vertex[vert].g; if (g > 0.0f) { g = g - 0.001f; fragment_link->data.triangles[count].vertex[vert].g = g; } b = fragment_link->data.triangles[count].vertex[vert].b; if (b > 0.0f) { b = b - 0.001f; fragment_link->data.triangles[count].vertex[vert].b = b; } } } } if (fragment_link->life_count > 1400) /* at the end of each loop all objects where bAlive = false are destroyed */ fragment_link->bAlive = false; fragment_link = fragment_link->next; } However, when fragments currently are on the screen and fading (life_count > 1000) the vertex colours get reset to red, green and blue when I shoot another asteroid and new fragments are added to the list? Not yet using any lighting or blending functions, just glColor3f(...) and glVertex3f(...) Any ideas would be appreciated.. C_Z..