def step(self):
window = self.get_node('/window')
scene = self.get_node('/window/scene')
sprite_renderer = self.get_node('/window/scene/sprite_renderer')
debugdraw_renderer = self.get_node('/window/scene/debugdraw_renderer')
if window.should_close():
sys.exit()
# trigger the callbacks
glfw.pollEvents()
window.make_context_current()
framebuffer_width, framebuffer_height = window.get_framebuffer_size()
gl.viewport(0, 0, framebuffer_width, framebuffer_height)
gl.clearColor(0.2, 0.3, 0.3, 1.0)
gl.clear(gl.COLOR_BUFFER_BIT|gl.DEPTH_BUFFER_BIT)
gl.enable(gl.BLEND)
gl.enable(gl.DEPTH_TEST)
# sprite_renderer.draw()
gl.disable(gl.BLEND)
gl.disable(gl.DEPTH_TEST)
scene.emit('predraw')
debugdraw_renderer.draw() # draw the debug draw scene on top of the other stuff.
scene.emit('postdraw')
scene.step()
#print(scene.get_node('transform').position, scene.get_node('transform').angle)
window.swap_buffers()
def main():
glfw.setErrorCallback(error_callback)
print("GL:", gl)
glfw.init()
glfw.windowHint(glfw.CONTEXT_VERSION_MAJOR, 3)
glfw.windowHint(glfw.CONTEXT_VERSION_MINOR, 3)
glfw.windowHint(glfw.OPENGL_PROFILE, glfw.OPENGL_CORE_PROFILE)
glfw.windowHint(glfw.RESIZABLE, gl.FALSE)
glfw.windowHint(glfw.OPENGL_FORWARD_COMPAT, 1)
window = glfw.createWindow(WIDTH, HEIGHT, "LearnOpenGL")
if window is None:
print('could not open window.')
glfw.terminate()
sys.exit()
window.makeContextCurrent()
# window.setInputMode(glfw.CURSOR, glfw.CURSOR_DISABLED)
window.setKeyCallback(key_callback)
gl.init()
print("IN MODULE:", gl.getError)
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
gl.enable(gl.DEPTH_TEST)
gl.enable(gl.BLEND)
gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
# set up our application
nodebuilder = NodeBuilder()
# TODO: this stuff should happen automatically.
debugdraw.register_with_nodebuilder(nodebuilder)
transformnode.register_with_nodebuilder(nodebuilder)
physicsnode.register_with_nodebuilder(nodebuilder)
# set up
scene = physicsnode.SceneNode(name='physics_scene') # scenenode.SceneNode(name='scene')
debugdraw_renderer = debugdraw.RendererNode(name='debugdraw_renderer', parent=scene)
sprite_renderer = spritenode.RendererNode(name="sprite_renderer", parent=scene)
# space =
create_wheelchair_guy(scene)
# TODO: finish debugging the get_relative_path method...
# print("wheel_suspension -> wheel_body", wheel_suspension.get_relative_path(wheel_body))
# print("wheel_suspension -> body", wheel_suspension.get_relative_path(body))
# print("wheel_suspension -> player", wheel_suspension.get_relative_path(player))
# print("wheel_suspension -> player_body", wheel_suspension.get_relative_path(body))
#
# print(wheel_suspension.get_node('../../../..'))
# assert(wheel_suspension.get_node('..') is wheel)
# p = '../../../..'
# print("P", wheel_suspension.get_node(p))
# assert(wheel_suspension.get_node(p) is player)
# assert(wheel_suspension.get_node('../wheel_body') is wheel_body)
# p = '../../../player_body'
# print(wheel_suspension.get_node(p))
# assert(wheel_suspension.get_node(p) is body)
while not window.shouldClose():
glfw.pollEvents()
framebuffer_width, framebuffer_height = window.getFramebufferSize()
gl.viewport(0, 0, framebuffer_width, framebuffer_height)
gl.clearColor(0.2, 0.3, 0.3, 1.0)
gl.clear(gl.COLOR_BUFFER_BIT|gl.DEPTH_BUFFER_BIT)
gl.enable(gl.BLEND)
gl.enable(gl.DEPTH_TEST)
sprite_renderer.draw()
gl.disable(gl.BLEND)
gl.disable(gl.DEPTH_TEST)
debugdraw_renderer.draw() # draw the debug draw scene on top of the other stuff.
scene.step(1.0/30.0, iterations=10)
#print(scene.get_node('transform').position, scene.get_node('transform').angle)
window.swapBuffers()
def main():
glfw.setErrorCallback(error_callback)
glfw.init()
glfw.windowHint(glfw.CONTEXT_VERSION_MAJOR, 3)
glfw.windowHint(glfw.CONTEXT_VERSION_MINOR, 3)
glfw.windowHint(glfw.OPENGL_PROFILE, glfw.OPENGL_CORE_PROFILE)
# glfw.windowHint(glfw.RESIZABLE, gl.FALSE)
glfw.windowHint(glfw.OPENGL_FORWARD_COMPAT, 1)
if ENABLE_MULTISAMPLE:
glfw.windowHint(glfw.SAMPLES, 4)
window = glfw.createWindow(WIDTH, HEIGHT, "LearnOpenGL")
if window is None:
print('could not open window.')
glfw.terminate()
sys.exit()
window.makeContextCurrent()
# window.setInputMode(glfw.CURSOR, glfw.CURSOR_DISABLED)
window.setKeyCallback(key_callback)
gl.init()
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
framebuffer_width, framebuffer_height = window.getFramebufferSize()
# Framebuffers
framebuffer = gl.genFramebuffers(1)[0]
gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer);
# Create a color attachment texture
textureColorbuffer = generateAttachmentTexture(gl.RGB, framebuffer_width, framebuffer_height);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, textureColorbuffer, 0)
# set up the position buffer
gPosition = gl.genTextures(1)[0]
gl.bindTexture(gl.TEXTURE_2D, gPosition)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB16F, framebuffer_width, framebuffer_height, 0, gl.RGB, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT1, gl.TEXTURE_2D, gPosition, 0)
# set up the normal buffer
gNormal = gl.genTextures(1)[0]
gl.bindTexture(gl.TEXTURE_2D, gNormal)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB16F, framebuffer_width, framebuffer_height, 0, gl.RGB, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT2, gl.TEXTURE_2D, gNormal, 0)
gLight = gl.genTextures(1)[0]
gl.bindTexture(gl.TEXTURE_2D, gLight)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB16F, framebuffer_width, framebuffer_height, 0, gl.RGB, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT3, gl.TEXTURE_2D, gLight, 0)
# - Tell OpenGL which color attachments we'll use (of this framebuffer) for rendering
attachments = [gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1, gl.COLOR_ATTACHMENT2]
gl.drawBuffers(attachments)
gDepth = gl.genTextures(1)[0]
gl.bindTexture(gl.TEXTURE_2D, gDepth)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.DEPTH24_STENCIL8, framebuffer_width, framebuffer_height, 0, gl.DEPTH_STENCIL, gl.UNSIGNED_INT_24_8, None)
# gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB16F, framebuffer_width, framebuffer_height, 0, gl.RGB, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT, gl.TEXTURE_2D, gDepth, 0)
# Create a renderbuffer object for depth and stencil attachment (we won't be sampling these)
# rbo = gl.genRenderbuffers(1)[0]
# gl.bindRenderbuffer(gl.RENDERBUFFER, rbo)
# gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH24_STENCIL8, framebuffer_width, framebuffer_height); # Use a single renderbuffer object for both a depth AND stencil buffer.
# gl.bindRenderbuffer(gl.RENDERBUFFER, 0);
# gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT, gl.RENDERBUFFER, rbo) # Now actually attach it
# Now that we actually created the framebuffer and added all attachments we want to check if it is actually complete now
if gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE:
print("ERROR::FRAMEBUFFER:: Framebuffer is not complete!")
gl.bindFramebuffer(gl.FRAMEBUFFER, 0)
deferred_textures = {
'screenTexture': textureColorbuffer,
'normalTexture': gNormal,
'positionTexture': gPosition,
'lightTexture': gLight,
'depthTexture': gDepth
}
scene = Scene()
camera = Camera(scene=scene)
quad_scene = Scene()
quad_camera = Camera(scene=quad_scene)
light_scene = Scene()
light_camera = Camera(scene=light_scene, clear=0)
light_camera.clear = gl.COLOR_BUFFER_BIT
light_camera.clear_color = (0.0, 0.0, 0.0, 0.0)
light_camera.projection_matrix = camera.projection_matrix = Mat4.Perspective(45.0, framebuffer_width/framebuffer_height, 0.1, 100.0)
light_camera.view_matrix = camera.view_matrix = Mat4.LookAt(Vec3(math.cos(time.clock()), 1.0, math.sin(time.clock())) *15.0, Vec3(0.0, 0.0, 0.0), Vec3(0.0, 1.0, 0.0))
# light volume model
light_volume_data = objloader.load_obj(os.path.join("springtangent-model-files", "lightsphere", "lightsphere.obj"), calculate_normals=True)
light_volume_model = Model.FromJSON(light_volume_data, PointLightInstanceData, PlateInstance)
# other models
armored_plate_data = objloader.load_obj(os.path.join("springtangent-model-files", "armored_plate.75.75.decimation_test7.obj"), calculate_normals=True)
armored_plate_model = Model.FromJSON(armored_plate_data, InstanceData, PlateInstance)
plane_plate_data = objloader.load_obj(os.path.join("springtangent-model-files", "plane_plate.75.75.decimation_test.00.obj"), calculate_normals=True)
plane_plate_model = Model.FromJSON(plane_plate_data, InstanceData, PlateInstance)
angled_plate_data = objloader.load_obj(os.path.join("springtangent-model-files", "angled_plate_plane.75.25..25.decimated.obj"), calculate_normals=True)
angled_plate_model = Model.FromJSON(angled_plate_data, InstanceData, PlateInstance)
angled_to_rounded_data = objloader.load_obj(os.path.join("springtangent-model-files", "angled_to_round_adapter.75.25.25", "angled_to_rounded_adapter.75.25.25.decimated.obj"), calculate_normals=True)
angled_to_rounded_model = Model.FromJSON(angled_to_rounded_data, InstanceData, PlateInstance)
models = [armored_plate_model, plane_plate_model, angled_plate_model, angled_to_rounded_model]
deferred_shader = ShaderProgram(GBUFFER_VERT, GBUFFER_FRAG)
deferred_light_shader = ShaderProgram(GBUFFER_LIGHT_VERT, GBUFFER_LIGHT_FRAG)
for mesh in light_volume_model.meshes:
mesh.shader = deferred_light_shader
mesh.material = deferred_textures
# replace the shader with the deferred shader in all meshes
for model in models:
for mesh in model.meshes:
mesh.shader = deferred_shader
# set up the data for the instances.
# 30 x 30 array of tiles, which are randomly selected among the above models
n = 30
instances = {}
for i in range(n):
for j in range(n):
r = random.choice(range(4))
transform = Mat4.Translation(Vec3((i-n//2) * 2, 0.0, (j-n//2) * 2)) * Mat4.Rotation(math.pi/2.0 * r, Vec3(0.0, 1.0, 0.0))
instance = scene.add(random.choice(models), InstanceData(transform))
instance.r = r
instances[i,j] = instance
nlights = 400
for i in range(nlights):
transform = Mat4.Translation(Vec3(random.uniform(-n/2, n/2), random.uniform(-1.0, 1.0), random.uniform(-n/2,n/2))) * Mat4.Scale(random.uniform(2.0, 10.0))
instance = light_scene.add(light_volume_model, PointLightInstanceData(transform, diffuse=Vec3(1.0, 1.0, 1.0), linear_attenuation=0.1, quadratic_attenutation=0.01))
# full screen rectangle
class QuadVert(Structure):
_fields_ = [
('position', Vec2),
('texcoord', Vec2)
]
quad_points = Vector(QuadVert)
quad_points.append(QuadVert(Vec2(-1.0, 1.0), Vec2(0.0, 1.0)))
quad_points.append(QuadVert(Vec2(-1.0, -1.0), Vec2(0.0, 0.0)))
quad_points.append(QuadVert(Vec2( 1.0, -1.0), Vec2(1.0, 0.0)))
quad_points.append(QuadVert(Vec2( 1.0, 1.0), Vec2(1.0, 1.0)))
quad_indices = Vector(c_ubyte)
quad_indices.append(0)
quad_indices.append(1)
quad_indices.append(2)
quad_indices.append(0)
quad_indices.append(2)
quad_indices.append(3)
quad_attribs = BufferAttribs(sizeof(QuadVert))
quad_attribs.add(BufferAttribs.POSITION_INDEX, 2, gl.FLOAT, gl.FALSE, QuadVert.position.offset)
quad_attribs.add(BufferAttribs.TEXCOORD_INDEX, 2, gl.FLOAT, gl.FALSE, QuadVert.texcoord.offset)
quad_shader = ShaderProgram(FRAMEBUFFER_VERT, FRAMEBUFFER_FRAG)
quad_draw_call = DrawCall(gl.UNSIGNED_BYTE, gl.TRIANGLES, 0, len(quad_indices))
quad_material = deferred_textures
quad_mesh = Mesh(quad_shader, quad_draw_call, quad_material)
quad_model = Model(quad_indices.get_data(), quad_points.get_data(), quad_attribs, [quad_mesh], InstanceData, PlateInstance)
# quad_instances = ModelInstances(quad_model)
quad_instance = quad_scene.add(quad_model, InstanceData(Mat4.Identity()))
gl.enable(gl.MULTISAMPLE)
t0 = time.perf_counter()
frames = 0
while not window.shouldClose():
glfw.pollEvents()
t = time.perf_counter()
# render scene to gbuffer
gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer)
gl.enable(gl.DEPTH_TEST)
gl.depthFunc(gl.LEQUAL)
gl.enable(gl.CULL_FACE)
gl.cullFace(gl.BACK)
# set up gbuffer for writing
attachments = [gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1, gl.COLOR_ATTACHMENT2]
gl.drawBuffers(attachments)
framebuffer_width, framebuffer_height = window.getFramebufferSize()
light_camera.view_matrix = camera.view_matrix = Mat4.LookAt(Vec3(math.cos(time.clock() * 0.1), 1.0, math.sin(time.clock() * 0.1)) *15.0, Vec3(0.0, 0.0, 0.0), Vec3(0.0, 1.0, 0.0))
viewport = (0, 0, framebuffer_width, framebuffer_height)
camera.render_to_viewport(viewport)
# render lights to gbuffer
gl.drawBuffer(gl.COLOR_ATTACHMENT3)
gl.depthFunc(gl.GREATER)
gl.enable(gl.CULL_FACE)
gl.cullFace(gl.FRONT)
gl.enable(gl.BLEND)
gl.blendEquation(gl.FUNC_ADD)
gl.blendFunc(gl.ONE, gl.ONE)
light_camera.render_to_viewport(viewport)
err = gl.getError()
if err:
print("ERROR:", err)
if TEST_ANIMATION:
for i in range(n):
for j in range(n):
instance = instances[i,j]
enabled = True # math.sin(i+j+t*10.0) > -0.8
# instance.set_enabled(enabled)
if enabled:
y = (math.sin(t+i) + math.cos(t+j)) * 0.25
transform = Mat4.Translation(Vec3((i-n//2) * 2, y, (j-n//2) * 2)) * Mat4.Rotation(math.pi/2.0 * instance.r, Vec3(0.0, 1.0, 0.0))
instance.model_matrix = transform
# render quad with texture
gl.bindFramebuffer(gl.FRAMEBUFFER, 0)
gl.disable(gl.BLEND)
gl.disable(gl.CULL_FACE)
gl.disable(gl.DEPTH_TEST) # We don't care about depth information when rendering a single quad
quad_camera.clear_color = (1.0, 1.0, 1.0, 1.0)
quad_camera.clear = gl.COLOR_BUFFER_BIT
quad_camera.render_to_viewport(viewport)
scene.update_instances()
quad_scene.update_instances()
light_scene.update_instances()
window.swapBuffers()
frames += 1
if not frames % 100:
print("FRAME RATE:", float(frames)/(time.perf_counter() - t0))
