def __init__(self, window_width, window_height, samples, window_title):
self.window_title = window_title
assert glfw.Init(), 'Glfw Init failed!'
glfw.WindowHint(glfw.SAMPLES, samples)
self.windowID = glfw.CreateWindow(window_width, window_height,
self.window_title, None)
assert self.windowID, 'Could not create Window!'
glfw.MakeContextCurrent(self.windowID)
assert glInitBindlessTextureNV(), 'Bindless Textures not supported!'
self.framebuf_width, self.framebuf_height = glfw.GetFramebufferSize(
self.windowID)
def framebuffer_size_callback(window, w, h):
self.framebuf_width, self.framebuf_height = w, h
glfw.SetFramebufferSizeCallback(self.windowID,
framebuffer_size_callback)
def key_callback(window, key, scancode, action, mode):
if action == glfw.PRESS:
if key == glfw.KEY_ESCAPE:
glfw.SetWindowShouldClose(window, True)
glfw.SetKeyCallback(self.windowID, key_callback)
self.previous_second = glfw.GetTime()
self.frame_count = 0.0
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)
glDisable(GL_STENCIL_TEST)
glDisable(GL_BLEND)
glDisable(GL_CULL_FACE)
glClearColor(0.0, 0.0, 0.0, 1.0)
glEnable(GL_LINE_SMOOTH)
glEnable(GL_POLYGON_SMOOTH)
def test_window_framebuffer_resize_callback(self):
w_called = [False]
def w_callback(window, width, height):
w_called[0] = True
f_called = [False]
def f_callback(window, width, height):
f_called[0] = True
glfw.SetWindowSizeCallback(self.window, w_callback)
glfw.SetFramebufferSizeCallback(self.window, f_callback)
glfw.SetWindowSize(self.window, 800, 600)
glfw.PollEvents()
glfw.SetWindowSizeCallback(self.window, None)
glfw.SetFramebufferSizeCallback(self.window, None)
self.assertTrue(w_called[0])
self.assertTrue(f_called[0])
def setup_loop(self, scene, camera):
scene.set_camera(camera)
scene.update_minmax()
camera.compute_matrices()
print("Starting rendering...")
callbacks = EventCollection(scene, camera)
# register key callbacks defined in
# yt.visualization.volume_rendering.input_events
callbacks.add_key_callback("close_window", "escape")
callbacks.add_key_callback("zoomin", "w")
callbacks.add_key_callback("zoomout", "s")
callbacks.add_key_callback("closeup", "z")
callbacks.add_key_callback("cmap_cycle", "c")
callbacks.add_key_callback("reset", "r")
callbacks.add_key_callback("camera_orto", "o")
callbacks.add_key_callback("camera_proj", "p")
callbacks.add_key_callback("shader_max", "1")
callbacks.add_key_callback("shader_proj", "2")
callbacks.add_key_callback("shader_test", "3")
callbacks.add_key_callback("print_limits", "g")
callbacks.add_key_callback("print_help", "h")
callbacks.add_key_callback("debug_buffer", "d")
callbacks.add_key_callback("cmap_max_up", "right_bracket")
callbacks.add_key_callback("cmap_max_down", "left_bracket")
callbacks.add_key_callback("cmap_min_up", "semicolon")
callbacks.add_key_callback("cmap_min_down", "apostrophe")
callbacks.add_key_callback("cmap_toggle_log", "l")
mouse_callbacks = MouseRotation()
callbacks.add_mouse_callback(
mouse_callbacks.start_rotation, glfw.MOUSE_BUTTON_LEFT
)
callbacks.add_mouse_callback(
mouse_callbacks.stop_rotation, glfw.MOUSE_BUTTON_LEFT, action="release"
)
callbacks.add_framebuffer_callback("framebuffer_size_callback")
callbacks.add_render_callback(mouse_callbacks.do_rotation)
glfw.SetFramebufferSizeCallback(self.window, callbacks.framebuffer_call)
glfw.SetKeyCallback(self.window, callbacks.key_call)
glfw.SetMouseButtonCallback(self.window, callbacks.mouse_call)
callbacks.draw = True
return callbacks
def add_framebuffer_size_callback(self, callback):
if not hasattr(self, '_framebuffer_size_callbacks'):
self._framebuffer_size_callbacks = []
glfw.SetFramebufferSizeCallback(self._window,
self.__framebuffer_size_callback__)
self._framebuffer_size_callbacks.append(callback)
bridge = CvBridge()
window_width, window_height = 640, 480
samples = 16
window_title = 'OpenCV+OpenGL'
assert glfw.Init(), 'Glfw Init failed!'
glfw.WindowHint(glfw.SAMPLES, samples)
window = glfw.CreateWindow(window_width, window_height, window_title, None)
assert window, 'Could not create Window!'
glfw.MakeContextCurrent(window)
assert glInitBindlessTextureNV(), 'Bindless Textures not supported!'
framebuf_width, framebuf_height = glfw.GetFramebufferSize(window)
def framebuffer_size_callback(window, w, h):
global framebuf_width, framebuf_height
framebuf_width, framebuf_height = w, h
glfw.SetFramebufferSizeCallback(window, framebuffer_size_callback)
def key_callback(window, key, scancode, action, mode):
if action == glfw.PRESS:
if key == glfw.KEY_ESCAPE:
glfw.SetWindowShouldClose(window, True)
glfw.SetKeyCallback(window, key_callback)
previous_second = glfw.GetTime(); frame_count = 0.0
def update_fps_counter(window):
global previous_second, frame_count
current_second = glfw.GetTime()
elapsed_seconds = current_second - previous_second
if elapsed_seconds > 1.0:
previous_second = current_second
fps = float(frame_count) / float(elapsed_seconds)
glfw.SetWindowTitle(window, '%s @ FPS: %.2f' % (window_title, fps))
def __init__(self,
window_width,
window_height,
samples=1,
window_title="",
monitor=1,
show_at_center=True,
offscreen=False):
self.window_title = window_title
assert glfw.Init(), "Glfw Init failed!"
glfw.WindowHint(glfw.SAMPLES, samples)
if offscreen:
glfw.WindowHint(glfw.VISIBLE, False)
mon = glfw.GetMonitors()[monitor] if monitor != None else None
self.windowID = glfw.CreateWindow(window_width, window_height,
self.window_title, mon)
assert self.windowID, "Could not create Window!"
glfw.MakeContextCurrent(self.windowID)
if not glInitBindlessTextureNV():
raise RuntimeError("Bindless Textures not supported")
self.framebuf_width, self.framebuf_height = glfw.GetFramebufferSize(
self.windowID)
self.framebuffer_size_callback = []
def framebuffer_size_callback(window, w, h):
self.framebuf_width, self.framebuf_height = w, h
for callback in self.framebuffer_size_callback:
callback(w, h)
glfw.SetFramebufferSizeCallback(self.windowID,
framebuffer_size_callback)
self.key_callback = []
def key_callback(window, key, scancode, action, mode):
if action == glfw.PRESS:
if key == glfw.KEY_ESCAPE:
glfw.SetWindowShouldClose(window, True)
for callback in self.key_callback:
callback(key, scancode, action, mode)
glfw.SetKeyCallback(self.windowID, key_callback)
self.mouse_callback = []
def mouse_callback(window, xpos, ypos):
for callback in self.mouse_callback:
callback(xpos, ypos)
glfw.SetCursorPosCallback(self.windowID, mouse_callback)
self.mouse_button_callback = []
def mouse_button_callback(window, button, action, mods):
for callback in self.mouse_button_callback:
callback(button, action, mods)
glfw.SetMouseButtonCallback(self.windowID, mouse_button_callback)
self.scroll_callback = []
def scroll_callback(window, xoffset, yoffset):
for callback in self.scroll_callback:
callback(xoffset, yoffset)
glfw.SetScrollCallback(self.windowID, scroll_callback)
self.previous_second = glfw.GetTime()
self.frame_count = 0.0
if show_at_center:
monitors = glfw.GetMonitors()
assert monitor >= 0 and monitor < len(
monitors), "Invalid monitor selected."
vidMode = glfw.GetVideoMode(monitors[monitor])
glfw.SetWindowPos(
self.windowID,
vidMode.width / 2 - self.framebuf_width / 2,
vidMode.height / 2 - self.framebuf_height / 2,
)
def __init__(self, width, height, title):
glfw.WindowHint(glfw.CONTEXT_VERSION_MAJOR, 4)
glfw.WindowHint(glfw.CONTEXT_VERSION_MINOR, 1)
glfw.WindowHint(glfw.OPENGL_FORWARD_COMPAT, 1)
glfw.WindowHint(glfw.OPENGL_PROFILE, glfw.OPENGL_CORE_PROFILE)
glfw.WindowHint(glfw.RESIZABLE, True)
glfw.WindowHint(glfw.RED_BITS, 8)
glfw.WindowHint(glfw.GREEN_BITS, 8)
glfw.WindowHint(glfw.BLUE_BITS, 8)
# glfw.WindowHint(glfw.ALPHA_BITS, 8)
glfw.WindowHint(glfw.DEPTH_BITS, 24)
glfw.WindowHint(glfw.STENCIL_BITS, 8)
self.window = glfw.CreateWindow(width, height, title)
self.framebufferSize = (width, height)
f = 240
pos = np.array([3, 3, 3])
dir = np.array([-1, -1, -1])
up = np.array([0, 0, 1])
near = 0.2
far = 100
self.playerCamera = PlayerCamera(f, self.framebufferSize, pos, dir, up, near, far)
self.currentCamera = self.playerCamera
self.cameraLocked = True
self.mainRender = None
self.cairoSavePath = None
def key_callback(window, key, scancode, action, mods):
if (key == glfw.KEY_ESCAPE and action == glfw.PRESS):
glfw.SetWindowShouldClose(window, True)
if (action == glfw.PRESS and key == glfw.KEY_L):
self.cameraLocked = not self.cameraLocked
print 'cameraLocked:', self.cameraLocked
glfw.SetInputMode(window, glfw.CURSOR, glfw.CURSOR_NORMAL if self.cameraLocked else glfw.CURSOR_DISABLED)
# if not self.cameraLocked:
# Ensure that locking/unlocking doesn't move the view:
windowWidth, windowHeight = glfw.GetWindowSize(window)
glfw.SetCursorPos(window, windowWidth / 2, windowHeight / 2)
self.currentCamera.lastCursor = np.array(glfw.GetCursorPos(window), np.float32)
self.currentCamera.lastUpdateTime = glfw.GetTime()
if (action == glfw.PRESS and key == glfw.KEY_R):
self.mainRender.renderCairo(self.playerCamera, self.cairoSavePath)
pass
# # print(
# "keybrd: key=%s scancode=%s action=%s mods=%s" %
# (key, scancode, action, mods))
def char_callback(window, char):
pass
# print("unichr: char=%s" % char)
def scroll_callback(window, off_x, off_y):
pass
# print("scroll: x=%s y=%s" % (off_x, off_y))
def mouse_button_callback(window, button, action, mods):
pass
# print("button: button=%s action=%s mods=%s" % (button, action, mods))
def cursor_enter_callback(window, status):
pass
# print("cursor: status=%s" % status)
def cursor_pos_callback(window, pos_x, pos_y):
pass
# print("curpos: x=%s y=%s" % (pos_x, pos_y))
def window_size_callback(window, wsz_w, wsz_h):
pass
# print("window: w=%s h=%s" % (wsz_w, wsz_h))
def window_pos_callback(window, pos_x, pos_y):
pass
# print("window: x=%s y=%s" % (pos_x, pos_y))
def window_close_callback(window):
pass
# print("should: %s" % self.should_close)
def window_refresh_callback(window):
pass
# print("redraw")
def window_focus_callback(window, status):
pass
# print("active: status=%s" % status)
def window_iconify_callback(window, status):
pass
# print("hidden: status=%s" % status)
def framebuffer_size_callback(window, fbs_x, fbs_y):
print("buffer: x=%s y=%s" % (fbs_x, fbs_y))
self.framebufferSize = (fbs_x, fbs_y)
self.playerCamera.framebufferSize = (fbs_x, fbs_y)
glViewport(0, 0, self.currentCamera.framebufferSize[0], self.currentCamera.framebufferSize[1])
pass
glfw.SetKeyCallback(self.window, key_callback)
glfw.SetCharCallback(self.window, char_callback)
glfw.SetScrollCallback(self.window, scroll_callback)
glfw.SetMouseButtonCallback(self.window, mouse_button_callback)
glfw.SetCursorEnterCallback(self.window, cursor_enter_callback)
glfw.SetCursorPosCallback(self.window, cursor_pos_callback)
glfw.SetWindowSizeCallback(self.window, window_size_callback)
glfw.SetWindowPosCallback(self.window, window_pos_callback)
glfw.SetWindowCloseCallback(self.window, window_close_callback)
glfw.SetWindowRefreshCallback(self.window, window_refresh_callback)
glfw.SetWindowFocusCallback(self.window, window_focus_callback)
glfw.SetWindowIconifyCallback(self.window, window_iconify_callback)
glfw.SetFramebufferSizeCallback(self.window, framebuffer_size_callback)