def frustumProjMtx(fovy, near, far, aspect=0): if aspect == 0: from gltools import getViewportSize w,h = getViewportSize() aspect = float(w) / float(h) h = math.tan(fovy / 360.0 * math.pi) * near w = h * aspect return T.clip_matrix(-w, w, -h, h, near, far, perspective=True)
def init(self):
self.resetModelview()
self._normal_m = N.array([(1,0,0),(0,1,0),(0,0,1)],dtype="f")
self._light_m = T.identity_matrix()
self._perspective_m = frustumProjMtx(60, 0.5, 500.0)
vpw, vph = getViewportSize()
self._ortho_m = T.clip_matrix(0, vpw, vph, 0, -1, 1)# 0.,0.,.,1.,-1.,1.,False)
self._modelview_m_stack = []
self.setPerspectiveMode()
print self._modelview_m
print self._projection_m
self.pushTransform()
def setArea(self, x_max, y_max=None, x_min=None, y_min=None): self._area_set = (x_min, y_min, x_max, y_max) if y_min is None: if y_max is None: self._y_min = -1 self._y_max = 1 else: self._y_min = -y_max*0.5 self._y_max = y_max*0.5 elif y_max is None: assert(False) # can't just specify minimum else: self._y_min = y_min self._y_max = y_max if x_min is None: if x_max is None: vpw, vph = getViewportSize() f = float(vpw)/float(vph) * (self._y_max - self._y_min) self._x_min = -f*0.5 self._x_max = f*0.5 else: self._x_min = -x_max*0.5 self._x_max = x_max*0.5 elif x_max is None: assert(False) # can't just specify minimum else: self._x_min = x_min self._x_max = x_max self._projection_changed = True if self._scene: self._scene.flagCameraChanged(self)
