118     color col, avcol;  in render_one_pixel()  local
133     col = trace(&primary);  in render_one_pixel()
155             col.r += avcol.r;  in render_one_pixel()
156             col.g += avcol.g;  in render_one_pixel()
157             col.b += avcol.b;  in render_one_pixel()
160         col.r /= (scene.antialiasing + 1.0);  in render_one_pixel()
161         col.g /= (scene.antialiasing + 1.0);  in render_one_pixel()
162         col.b /= (scene.antialiasing + 1.0);  in render_one_pixel()
166     R = (int)(col.r * 255);  in render_one_pixel()
172     G = (int)(col.g * 255);  in render_one_pixel()
178     B = (int)(col.b * 255);  in render_one_pixel()