我有一个计数器工作,计算每一帧。我想要做的是将时间除以确定我的程序的FPS。但是我不确定如何在python中对定时函数执行操作。
我已尝试初始化时间
fps_time = time.time
fps_time = float(time.time)
fps_time = np.float(time.time)
fps_time = time()
然后计算fps,
FPS = (counter / fps_time)
FPS = float(counter / fps_time)
FPS = float(counter (fps_time))
但是我得到的错误是对象不是/或' int'的可调用或不支持的操作数。和'建立功能'
提前感谢您的帮助!
答案 0 :(得分:14)
这是在每个帧上打印程序的帧速率的一种非常简单的方法(不需要计数器):
import time
while True:
start_time = time.time() # start time of the loop
########################
# your fancy code here #
########################
print("FPS: ", 1.0 / (time.time() - start_time)) # FPS = 1 / time to process loop
如果你希望平均帧速率超过 x 秒,你可以这样做(需要计数器):
import time
start_time = time.time()
x = 1 # displays the frame rate every 1 second
counter = 0
while True:
########################
# your fancy code here #
########################
counter+=1
if (time.time() - start_time) > x :
print("FPS: ", counter / (time.time() - start_time))
counter = 0
start_time = time.time()
希望它有所帮助!
答案 1 :(得分:0)
你可能想要做这样的事情:
def program():
start_time = time.time() #record start time of program
frame_counter = 0
# random logic
for i in range(0, 100):
for j in range(0, 100):
# do stuff that renders a new frame
frame_counter += 1 # count frame
end_time = time.time() #record end time of program
fps = frame_counter / float(end_time - start_time)
当然,您不必等待程序结束时计算 end_time 和 fps ,您可以不时地执行此操作以报告FPS为该程序运行。在报告当前FPS估计之后重新启动 start_time 也可以帮助报告更精确的FPS估计。
答案 2 :(得分:0)
像魅力一样工作
import time
import collections
class FPS:
def __init__(self,avarageof=50):
self.frametimestamps = collections.deque(maxlen=avarageof)
def __call__(self):
self.frametimestamps.append(time.time())
if(len(self.frametimestamps) > 1):
return len(self.frametimestamps)/(self.frametimestamps[-1]-self.frametimestamps[0])
else:
return 0.0
fps = FPS()
for i in range(100):
time.sleep(0.1)
print(fps())
确保每帧调用一次fps