def rotateZ(self, deg):
mat = mat4_rotateZ(deg)
for i in range(len(self.vertices)):
self.vertices[i] = mv_mult(mat, self.vertices[i])
for i in range(len(self.vertices_normals)):
self.vertices_normals[i] = mv_mult(mat, self.vertices_normals[i])
def scale(self, sx, sy, sz):
mat = mat4_scale(d)
for i in range(len(self.vertices)):
self.vertices[i] = mv_mult(mat, self.vertices[i])
def translateZ(self, d):
mat = mat4_translateZ(d)
for i in range(len(self.vertices)):
self.vertices[i] = mv_mult(mat, self.vertices[i])