Lines Matching refs:normal
95 // calculate normal
98 Vector3 normal(lu.cross(lv));
99 if (normal.length() <= 0.000001)
100 normal.setValue(0, 0, -1.0);
101 normal.normalize();
104 glNormal3f(normal.x(), normal.y(), normal.z());
108 glNormal3f(normal.x(), normal.y(), normal.z());
112 glNormal3f(normal.x(), normal.y(), normal.z());
117 glNormal3f(normal.x(), normal.y(), normal.z());
124 glNormal3f(-normal.x(), -normal.y(), -normal.z());
129 glNormal3f(-normal.x(), -normal.y(), -normal.z());
133 glNormal3f(-normal.x(), -normal.y(), -normal.z());
137 glNormal3f(-normal.x(), -normal.y(), -normal.z());
153 // calculate normal
156 Vector3 normal(lu.cross(lv));
157 if (normal.length() <= 0.000001)
158 normal.setValue(0, 0, -1.0);
159 normal.normalize();
169 Vector3 h(g + normal);