def make_buffer(self, width, height, texture_format):
self.width = width
self.height = height
self.root = NodePath("root")
props = FrameBufferProperties()
props.set_srgb_color(False)
if texture_format == Texture.F_rgb:
props.set_float_color(False)
props.set_rgba_bits(8, 8, 8, 0)
elif texture_format == Texture.F_rgba:
props.set_float_color(False)
props.set_rgba_bits(8, 8, 8, 8)
elif texture_format == Texture.F_r32:
props.set_float_color(True)
props.set_rgba_bits(32, 0, 0, 0)
elif texture_format == Texture.F_rgb32:
props.set_float_color(True)
props.set_rgba_bits(32, 32, 32, 0)
elif texture_format == Texture.F_rgba32:
props.set_float_color(True)
props.set_rgba_bits(32, 32, 32, 32)
self.buffer = base.win.make_texture_buffer("generatorBuffer",
width,
height,
to_ram=True,
fbp=props)
#print(self.buffer.get_fb_properties(), self.buffer.get_texture())
self.buffer.setOneShot(True)
#the camera for the buffer
cam = base.makeCamera(win=self.buffer)
cam.reparent_to(self.root)
cam.set_pos(width / 2, height / 2, 100)
cam.set_p(-90)
lens = OrthographicLens()
lens.set_film_size(width, height)
cam.node().set_lens(lens)
#plane with the texture
cm = CardMaker("plane")
cm.set_frame(0, width, 0, height)
x_margin = 1.0 / width / 2.0
y_margin = 1.0 / height / 2.0
cm.set_uv_range((-x_margin, -y_margin), (1 + x_margin, 1 + y_margin))
self.quad = self.root.attach_new_node(cm.generate())
self.quad.look_at(0, 0, -1)
taskMgr.add(self.check_generation, 'check_generation', sort=-10000)
taskMgr.add(self.callback, 'callback', sort=-9999)
print("Created offscreen buffer, size: %dx%d" % (width, height),
"format:", Texture.formatFormat(texture_format))
