def setup_scene( self ):
# create an fps display
self.fps_display = pyglet.clock.ClockDisplay()
# create a list of renderables
self.renderables = []
# create a scene
self.scene_node = SceneNode( 'root' )
self.grid_node = SceneNode( 'grid' )
self.scene_node.add_child( self.grid_node )
self.grid_render_node = RenderCallbackNode(
'mesh',
grid.initialise_grid,
grid.render_grid
)
self.grid_node.add_child( self.grid_render_node )
# add to our list of renderables
self.renderables.append( self.grid_render_node )
# move the grid backward so we can see it
# and move it down so we start above it
self.grid_node.transform.inertial.translate(
[ 0.0, 0.0, -80.0 ]
)
# create a camera and a view matrix
self.view_matrix = ProjectionViewMatrix(
self.viewport.aspect_ratio,
fov = 45.0,
near_clip = 1.0,
far_clip = 200.0
)
# create a camera
self.camera = CameraNode(
'camera',
self.view_matrix
)
self.scene_node.add_child( self.camera )
# move the camera up so it starts above the grid
self.camera.transform.inertial.translate(
[ 0.0, 20.0, 0.0 ]
)
# assign a camera controller
# we'll use the 6 degrees of freedom
# camera for this one
self.camera_controller = SixDOF_Controller(
self.camera.transform
)
def setup_scene(self):
# create an fps display
self.fps_display = pyglet.clock.ClockDisplay()
# create a list of renderables
self.renderables = []
# create a scene
self.scene_node = SceneNode('root')
self.grid_node = SceneNode('grid')
self.scene_node.add_child(self.grid_node)
self.grid_render_node = RenderCallbackNode('mesh',
grid.initialise_grid,
grid.render_grid)
self.grid_node.add_child(self.grid_render_node)
# add to our list of renderables
self.renderables.append(self.grid_render_node)
# move the grid backward so we can see it
# and move it down so we start above it
self.grid_node.transform.inertial.translate([0.0, 0.0, -80.0])
# create a camera and a view matrix
self.view_matrix = ProjectionViewMatrix(self.viewport.aspect_ratio,
fov=45.0,
near_clip=1.0,
far_clip=200.0)
# create a camera
self.camera = CameraNode('camera', self.view_matrix)
self.scene_node.add_child(self.camera)
# move the camera up so it starts above the grid
self.camera.transform.inertial.translate([0.0, 20.0, 0.0])
# assign a camera controller
# we'll use the 6 degrees of freedom
# camera for this one
self.camera_controller = SixDOF_Controller(self.camera.transform)
class Application(object):
def __init__(self):
super(Application, self).__init__()
# setup our opengl requirements
config = pyglet.gl.Config(depth_size=16, double_buffer=True)
# create our window
self.window = pyglet.window.Window(fullscreen=False,
width=1024,
height=768,
resizable=True,
vsync=False,
config=config)
# create a viewport
self.viewport = RatioViewport(self.window, [[0.0, 0.0], [1.0, 1.0]])
# create our input devices
self.keyboard = Keyboard(self.window)
self.mouse = Mouse(self.window)
# setup our scene
self.setup_scene()
# setup our text
self.setup_text()
# listen for on_draw events
self.window.push_handlers(on_draw=self.on_draw)
# setup our update loop the app
# we'll render at 60 fps
frequency = 60.0
self.update_delta = 1.0 / frequency
# over-ride the frequency and render at full speed
self.update_delta = -1
# use a pyglet callback for our render loop
pyglet.clock.schedule_interval(self.step, self.update_delta)
def setup_scene(self):
# create an fps display
self.fps_display = pyglet.clock.ClockDisplay()
# create a list of renderables
self.renderables = []
# create a scene
self.scene_node = SceneNode('root')
self.grid_node = SceneNode('grid')
self.scene_node.add_child(self.grid_node)
self.grid_render_node = RenderCallbackNode('mesh',
grid.initialise_grid,
grid.render_grid)
self.grid_node.add_child(self.grid_render_node)
# add to our list of renderables
self.renderables.append(self.grid_render_node)
# move the grid backward so we can see it
# and move it down so we start above it
self.grid_node.transform.inertial.translate([0.0, 0.0, -80.0])
# create a camera and a view matrix
self.view_matrix = ProjectionViewMatrix(self.viewport.aspect_ratio,
fov=45.0,
near_clip=1.0,
far_clip=200.0)
# create a camera
self.camera = CameraNode('camera', self.view_matrix)
self.scene_node.add_child(self.camera)
# move the camera up so it starts above the grid
self.camera.transform.inertial.translate([0.0, 20.0, 0.0])
# assign a camera controller
# we'll use the 6 degrees of freedom
# camera for this one
self.camera_controller = SixDOF_Controller(self.camera.transform)
def setup_text(self):
self.help_label = pyglet.text.HTMLLabel(
"""
<b>6-DOF Camera demo</b>
<ul>
<li>Mouse: look around</li>
<li>W,A,S,D: move around</li>
<li>Space: move up</li>
<li>Shift: move down</li>
</ul>
""",
multiline=True,
x=0,
y=50,
width=500,
anchor_x='left',
anchor_y='bottom',
)
self.help_label.color = (255, 255, 255, 255)
def run(self):
pyglet.app.run()
def step(self, dt):
# update the Camera
camera_speed = 40.0
# handle input
# this looks complex, but all we're doing
# is checking for WASD / Arrows
# and then sending forward, backward, etc
# to the camera controller with an amount that
# is scaled by the current time delta
if self.keyboard[self.keyboard.keys.W] or self.keyboard[
self.keyboard.keys.UP]:
# move forward
self.camera_controller.translate_forward(camera_speed * dt)
if self.keyboard[self.keyboard.keys.S] or self.keyboard[
self.keyboard.keys.DOWN]:
# move backward
self.camera_controller.translate_backward(camera_speed * dt)
if self.keyboard[self.keyboard.keys.D] or self.keyboard[
self.keyboard.keys.RIGHT]:
# move right
self.camera_controller.translate_right(camera_speed * dt)
if self.keyboard[self.keyboard.keys.A] or self.keyboard[
self.keyboard.keys.LEFT]:
# move right
self.camera_controller.translate_left(camera_speed * dt)
if self.keyboard[self.keyboard.keys.SPACE]:
# move up
self.camera_controller.translate_up(camera_speed * dt)
if self.keyboard[self.keyboard.keys.LSHIFT]:
# move up
self.camera_controller.translate_down(camera_speed * dt)
# handle camera rotation
# get the relative movement of the mouse
# since the last frame
mouse_relative = self.mouse.relative_position
# the base movement speed we use for
# scaling with the mouse movements
# this value just feels about right
mouse_speed = 0.006
# scale the mouse movement by the relative value
# DON'T multiply by the time delta here
# think about it, it's not what you want!
frame_pitch = math.pi * mouse_speed * mouse_relative[1]
frame_yaw = -math.pi * mouse_speed * mouse_relative[0]
# check for mouse inverts, for us freaks...
# WE HAVE RIGHTS TOO!
invert_y = True
if invert_y == True:
frame_pitch = -frame_pitch
# pass the mouse movement to the camera controller
self.camera_controller.orient(pitch=frame_pitch, yaw=frame_yaw)
# reset our mouse relative position
# we should do this each time we take a reading
# or the delta will continue to accumulate
self.mouse.clear_delta()
# manually dispatch the on_draw event
# as we patched it out of the idle loop
self.window.dispatch_event('on_draw')
# display the frame buffer
self.window.flip()
def on_draw(self):
# render the scene
self.render()
# render our help text
self.help_label.draw()
# render the fps
self.fps_display.draw()
def render(self):
#
# setup
#
# activate the window
self.window.switch_to()
# activate our viewport
self.viewport.switch_to()
# setup our viewport properties
self.viewport.push_viewport_attributes()
# update the view matrix aspect ratio
self.camera.view_matrix.aspect_ratio = self.viewport.aspect_ratio
# apply our view matrix and camera translation
self.camera.view_matrix.push_view_matrix()
self.camera.push_model_view()
#
# render
#
# clear our frame buffer and depth buffer
pygly.gl.set_scissor(self.viewport.rect)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# render our grid
for renderable in self.renderables:
renderable.render()
#
# tear down
#
# pop our view matrix and camera translation
self.camera.pop_model_view()
self.camera.view_matrix.pop_view_matrix()
# reset our gl state
self.viewport.pop_viewport_attributes()
#
# reset state
#
# set our viewport to the entire window
pygly.gl.set_scissor(pygly.window.create_rectangle(self.window))
pygly.gl.set_viewport(pygly.window.create_rectangle(self.window))
class Application( object ):
def __init__( self ):
super( Application, self ).__init__()
# setup our opengl requirements
config = pyglet.gl.Config(
depth_size = 16,
double_buffer = True
)
# create our window
self.window = pyglet.window.Window(
fullscreen = False,
width = 1024,
height = 768,
resizable = True,
vsync = False,
config = config
)
# create a viewport
self.viewport = RatioViewport(
self.window,
[ [0.0, 0.0], [1.0, 1.0] ]
)
# create our input devices
self.keyboard = Keyboard( self.window )
self.mouse = Mouse( self.window )
# setup our scene
self.setup_scene()
# setup our text
self.setup_text()
# listen for on_draw events
self.window.push_handlers(
on_draw = self.on_draw
)
# setup our update loop the app
# we'll render at 60 fps
frequency = 60.0
self.update_delta = 1.0 / frequency
# over-ride the frequency and render at full speed
self.update_delta = -1
# use a pyglet callback for our render loop
pyglet.clock.schedule_interval(
self.step,
self.update_delta
)
def setup_scene( self ):
# create an fps display
self.fps_display = pyglet.clock.ClockDisplay()
# create a list of renderables
self.renderables = []
# create a scene
self.scene_node = SceneNode( 'root' )
self.grid_node = SceneNode( 'grid' )
self.scene_node.add_child( self.grid_node )
self.grid_render_node = RenderCallbackNode(
'mesh',
grid.initialise_grid,
grid.render_grid
)
self.grid_node.add_child( self.grid_render_node )
# add to our list of renderables
self.renderables.append( self.grid_render_node )
# move the grid backward so we can see it
# and move it down so we start above it
self.grid_node.transform.inertial.translate(
[ 0.0, 0.0, -80.0 ]
)
# create a camera and a view matrix
self.view_matrix = ProjectionViewMatrix(
self.viewport.aspect_ratio,
fov = 45.0,
near_clip = 1.0,
far_clip = 200.0
)
# create a camera
self.camera = CameraNode(
'camera',
self.view_matrix
)
self.scene_node.add_child( self.camera )
# move the camera up so it starts above the grid
self.camera.transform.inertial.translate(
[ 0.0, 20.0, 0.0 ]
)
# assign a camera controller
# we'll use the 6 degrees of freedom
# camera for this one
self.camera_controller = SixDOF_Controller(
self.camera.transform
)
def setup_text( self ):
self.help_label = pyglet.text.HTMLLabel(
"""
<b>6-DOF Camera demo</b>
<ul>
<li>Mouse: look around</li>
<li>W,A,S,D: move around</li>
<li>Space: move up</li>
<li>Shift: move down</li>
</ul>
""",
multiline = True,
x = 0,
y = 50,
width = 500,
anchor_x = 'left',
anchor_y = 'bottom',
)
self.help_label.color = (255,255,255,255)
def run( self ):
pyglet.app.run()
def step( self, dt ):
# update the Camera
camera_speed = 40.0
# handle input
# this looks complex, but all we're doing
# is checking for WASD / Arrows
# and then sending forward, backward, etc
# to the camera controller with an amount that
# is scaled by the current time delta
if self.keyboard[ self.keyboard.keys.W ] or self.keyboard[ self.keyboard.keys.UP ]:
# move forward
self.camera_controller.translate_forward( camera_speed * dt )
if self.keyboard[ self.keyboard.keys.S ] or self.keyboard[ self.keyboard.keys.DOWN ]:
# move backward
self.camera_controller.translate_backward( camera_speed * dt )
if self.keyboard[ self.keyboard.keys.D ] or self.keyboard[ self.keyboard.keys.RIGHT ]:
# move right
self.camera_controller.translate_right( camera_speed * dt )
if self.keyboard[ self.keyboard.keys.A ] or self.keyboard[ self.keyboard.keys.LEFT ]:
# move right
self.camera_controller.translate_left( camera_speed * dt )
if self.keyboard[ self.keyboard.keys.SPACE ]:
# move up
self.camera_controller.translate_up( camera_speed * dt )
if self.keyboard[ self.keyboard.keys.LSHIFT ]:
# move up
self.camera_controller.translate_down( camera_speed * dt )
# handle camera rotation
# get the relative movement of the mouse
# since the last frame
mouse_relative = self.mouse.relative_position
# the base movement speed we use for
# scaling with the mouse movements
# this value just feels about right
mouse_speed = 0.006
# scale the mouse movement by the relative value
# DON'T multiply by the time delta here
# think about it, it's not what you want!
frame_pitch = math.pi * mouse_speed * mouse_relative[ 1 ]
frame_yaw = -math.pi * mouse_speed * mouse_relative[ 0 ]
# check for mouse inverts, for us freaks...
# WE HAVE RIGHTS TOO!
invert_y = True
if invert_y == True:
frame_pitch = -frame_pitch
# pass the mouse movement to the camera controller
self.camera_controller.orient( pitch = frame_pitch, yaw = frame_yaw )
# reset our mouse relative position
# we should do this each time we take a reading
# or the delta will continue to accumulate
self.mouse.clear_delta()
# manually dispatch the on_draw event
# as we patched it out of the idle loop
self.window.dispatch_event( 'on_draw' )
# display the frame buffer
self.window.flip()
def on_draw( self ):
# render the scene
self.render()
# render our help text
self.help_label.draw()
# render the fps
self.fps_display.draw()
def render( self ):
#
# setup
#
# activate the window
self.window.switch_to()
# activate our viewport
self.viewport.switch_to()
# setup our viewport properties
self.viewport.push_viewport_attributes()
# update the view matrix aspect ratio
self.camera.view_matrix.aspect_ratio = self.viewport.aspect_ratio
# apply our view matrix and camera translation
self.camera.view_matrix.push_view_matrix()
self.camera.push_model_view()
#
# render
#
# clear our frame buffer and depth buffer
pygly.gl.set_scissor( self.viewport.rect )
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT )
# render our grid
for renderable in self.renderables:
renderable.render()
#
# tear down
#
# pop our view matrix and camera translation
self.camera.pop_model_view()
self.camera.view_matrix.pop_view_matrix()
# reset our gl state
self.viewport.pop_viewport_attributes()
#
# reset state
#
# set our viewport to the entire window
pygly.gl.set_scissor(
pygly.window.create_rectangle( self.window )
)
pygly.gl.set_viewport(
pygly.window.create_rectangle( self.window )
)
