def animation(self, shader_program, speed=1.0):
looplen = self.keyframes[-1].time - self.keyframes[0].time
current_time = (glfw.glfwGetTime() / speed) % looplen
while (self.keyframes[self.prev_iter].time > current_time) or (
self.keyframes[self.prev_iter + 1].time < current_time):
self.prev_iter = (self.prev_iter + 1) % (len(self.keyframes) - 1)
duration = self.keyframes[self.prev_iter +
1].time - self.keyframes[self.prev_iter].time
frame_progress = (current_time -
self.keyframes[self.prev_iter].time) / (duration)
pre_frame = self.keyframes[self.prev_iter]
next_frame = self.keyframes[self.prev_iter + 1]
self.interpolation_joint = dict()
# frame_progress = 0.5
# print("progress: ", frame_progress, "looplen ", looplen, self.prev_iter, self.prev_iter + 1)
for key, value in pre_frame.joint_transform.items():
t_m = self.interpolating_translation(
value[0],
next_frame.joint_transform.get(key)[0], frame_progress)
r_m = self.interpolating_rotation(
value[1],
next_frame.joint_transform.get(key)[1], frame_progress)
matrix = np.matmul(t_m, r_m)
self.interpolation_joint[key] = matrix
self.load_animation_matrices(self.root_joint, np.identity(4))
self.render(shader_program)
def render(window):
global program, vao, indices, cube_positions
GLFW.glfwPollEvents()
GL.glViewport(0, 0, window.width, window.height)
cameraPos = GLM.vec3(0.0, 0.0, 3.0)
cameraTarget = GLM.vec3(0.0, 0.0, 0.0)
cameraDirection = GLM.normalize(cameraPos - cameraTarget)
up = GLM.vec3(0.0, 1.0, 0.0)
cameraRight = GLM.normalize(GLM.cross(up, cameraDirection))
cameraUp = GLM.cross(cameraDirection, cameraRight)
view = GLM.lookAt(GLM.vec3(0.0, 0.0, 3.0), GLM.vec3(0.0, 0.0, 0.0),
GLM.vec3(0.0, 1.0, 0.0))
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT)
program.useProgram()
view = GLM.mat4(1.0)
view = GLM.translate(view, GLM.vec3(0.0, 0.0, -3.0))
projection = GLM.perspective(GLM.radians(45.0),
window.width / window.height, 0.1, 100.0)
program.setMat4("projection", projection)
for w in range(10):
radius = 10.0
camX = MATH.sin(GLFW.glfwGetTime()) * radius
camZ = MATH.cos(GLFW.glfwGetTime()) * radius
view = GLM.lookAt(GLM.vec3(camX, 0.0, camZ), GLM.vec3(0.0, 0.0, 0.0),
GLM.vec3(0.0, 1.0, 0.0))
model = GLM.mat4(1.0)
model = GLM.translate(model, cube_positions[w])
model = GLM.rotate(model, GLM.radians(20.0 * w),
GLM.vec3(1.0, 0.3, 0.5))
program.setMat4("model", model)
program.setMat4("view", view)
vao.useVAO(program)
GL.glDrawArrays(GL.GL_TRIANGLES, 0, 36)
vao.unBind()
GLFW.glfwSwapBuffers(window.getWindow())
def sync(start):
slot = 1 / 30.0
end = start + slot
while GLFW.glfwGetTime() < end:
time.sleep(1 / 1000.0)
def loopCallback(window):
renderer.render(window)
sync(GLFW.glfwGetTime())