Here's a quick script-ish snippet that shows how to use the batch and
resource module. It also illustrates the built-in fps display. This should
probably work OK, but I can't really test it on my machine at the moment.
import random
import pyglet
from pyglet import gl
COUNT = 1000
window = pyglet.window.Window(width=1000, height=600)
batch = pyglet.graphics.Batch()
fps_display = pyglet.clock.ClockDisplay(color=(0.9, 0.0, 0.2, 1.0))
delta_time_display = pyglet.text.Label(x=12, y=70, font_size=25, color=(255, 0,
25, 255))
pyglet.resource.path.append('.')
pyglet.resource.reindex()
sprites = []
def initialize_sprites():
for i in range(COUNT):
image = pyglet.resource.image("image100x100.jpeg")
x = random.randint(0, window.width)
y = random.randint(0, window.height)
sprite = pyglet.sprite.Sprite(image, x=x, y=y, batch=batch)
sprites.append(sprite)
def initialize_gl():
gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER,
gl.GL_NEAREST)
gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MIN_FILTER,
gl.GL_NEAREST)
@window.event
def on_draw():
window.clear()
batch.draw()
fps_display.draw()
delta_time_display.draw()
def update_game(dt):
delta_time_display.text = "Delta Time: " + str(round(dt, 4))
# update game stuff here
if __name__ == "__main__":
initialize_sprites()
initialize_gl()
pyglet.clock.schedule_interval(update_game, 1/60.0)
pyglet.app.run()
On Tuesday, February 7, 2017 at 6:57:17 PM UTC+9, Benjamin Moran wrote:
>
> Hi Kevin,
>
> There are a lot of very inificient things you are doing in your code.
> Calling the draw() method directly on each sprite is not recommended, since
> it has to set/unset the OpenGL state for each and every one. What you want
> to do instead is to create a batch: *batch = pyglet.graphics.Batch*, and
> pass this into each sprite on creation. Then, you can draw everything
> together with a single call to *batch.draw()* in your on_draw method. There
> is a bit of information about Batches in the programming guide, but it does
> need more detail:
>
> http://pyglet.readthedocs.io/en/pyglet-1.2-maintenance/programming_guide/graphics.html#batched-rendering
>
> That said, pyglet can easily render thousands of sprites if batched
> properly.
>
>
> On Tuesday, February 7, 2017 at 12:06:49 PM UTC+9, Kevin S. wrote:
>>
>> Hello, I started playing around with Pyglet recently and it was going
>> fine until I started trying to fill the screen with images. I ended up
>> with an atrocious frame rate, to the point where user mouse clicks weren't
>> working properly and animations looked really bad. In order to try to test
>> the limitations, I created the following test game to see what would happen:
>>
>>
>>
>>
>>
>>
>> *import randomimport pygletfrom pyglet import gl*
>> *class Game(object):*
>> * width = 1000*
>> * height = 600*
>> * images = [*
>> * {"filepath": "image100x100.jpeg", "count": 300}*
>> * ]*
>> * background_color = (0.3, 0.3, 0.3, 1)*
>> * report_interval = 5.0*
>>
>> * def start(self):*
>> * self.pyglet_window = pyglet.window.Window(width=self.width,
>> height=self.height, vsync=False)*
>> * self.pyglet_window.event(self.on_draw)*
>> * self.initializeGL()*
>> * self.reset_report_timer()*
>> * self.initialize_sprites()*
>> * pyglet.clock.schedule_interval(self.tick, 0.01)*
>> * pyglet.app.run()*
>>
>> * def initialize_sprites(self):*
>> * self.sprites = []*
>> * for image_set in self.images:*
>> * filepath = image_set["filepath"]*
>> * count = image_set["count"]*
>> * image = pyglet.image.load(filepath)*
>> * for i in range(count):*
>> * x, y = random.randint(0, self.width), random.randint(0,
>> self.height)*
>> * sprite = pyglet.sprite.Sprite(image, x=x, y=y)*
>> * self.sprites.append(sprite)*
>>
>> * def print_report(self):*
>> * print "======================="*
>> * print " Call count: {}".format(self.num_calls)*
>> * print " FPS: {}".format(self.num_calls / self.report_interval)*
>>
>> * def reset_report_timer(self):*
>> * self.report_timer = 0.0*
>> * self.num_calls = 0*
>>
>> * def initializeGL(self):*
>> * gl.glEnable(gl.GL_TEXTURE_2D)*
>> * gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER,
>> gl.GL_NEAREST)*
>> * gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MIN_FILTER,
>> gl.GL_NEAREST)*
>> * gl.glEnable(gl.GL_BLEND)*
>> * gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)*
>> * gl.glPushAttrib(gl.GL_ENABLE_BIT)*
>>
>> * def tick(self, seconds_passed):*
>> * self.num_calls += 1*
>> * self.report_timer += seconds_passed*
>> * if self.report_timer >= self.report_interval:*
>> * self.print_report()*
>> * self.reset_report_timer()*
>>
>>
>> * def on_draw(self):*
>> * self.pyglet_window.clear()*
>> * pyglet.gl.glColor4f(*self.background_color)*
>> * pyglet.graphics.draw(4, pyglet.gl.GL_QUADS,*
>> * ('v2i', (0, 0, self.width, 0, self.width, self.height, 0,
>> self.height))*
>> * )*
>> * pyglet.gl.glColor4f(1, 1, 1, 1)*
>> * self.draw_sprites()*
>>
>> * def draw_sprites(self):*
>> * for sprite in self.sprites:*
>> * sprite.draw()*
>>
>>
>> *if __name__ == "__main__":*
>> * game = Game()*
>> * game.start()*
>>
>> I attached the file I used as well. The GL commands I used were designed
>> to get pixel perfect graphics, and I set them up a long time ago and don't
>> remember exactly what they do. If you think those are teh problem please
>> let me know and I will test it out.
>>
>> The results were pretty crumby. I found that with 100 images I was
>> sitting at about 60 fps, with 200 images I went down to 30 fps, with 300
>> images I was down to 20 fps.
>>
>> I wanted to test out some features like the atlas and resource packages,
>> but I figured I would double check to make sure I am not making any obvious
>> mistakes here. Can anyone confirm that the limitations I am experiencing
>> are normal? If not, what can I try to get things working a bit better?
>>
>> My specs are:
>>
>> - MacBook Pro (15-inch, Mid 2012)
>> - Processor - 2.6 GHz Intel Core i7
>> - Memory - 8 GB 1600 MHz DDR3
>> - Graphics - NVIDIA GeForce GT 650M 1024 MB
>>
>>
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