本文整理汇总了Python中shader.Shader.uniformfv方法的典型用法代码示例。如果您正苦于以下问题：Python Shader.uniformfv方法的具体用法？Python Shader.uniformfv怎么用？Python Shader.uniformfv使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类shader.Shader的用法示例。
在下文中一共展示了Shader.uniformfv方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
# 需要导入模块: from shader import Shader [as 别名]
# 或者: from shader.Shader import uniformfv [as 别名]
class Unwrapper:
"""
This unwrapper takes an image path and a parsed frame and fulfills
the operations required to draw the unwrapped image.
The draw operations MUST be called inside of the "on_draw" callback
passed to "start_unwrap_window" in order to be fulfilled. This class
cannot function without an OpenGL window.
"""
def __init__(self):
# Create the shader.
self.shader = Shader(vertex_shader, fragment_shader)
# Set the texture unit.
self.shader.bind()
self.shader.uniformi('tex0', 0)
self.shader.unbind()
# Create a quad geometry to fit the whole window that will be the target of our drawing.
self.batch = pyglet.graphics.Batch()
self.batch.add(4, GL_QUADS, None, ('v2i', (0,0, 1,0, 1,1, 0,1)), ('t2f', (0,0, 1,0, 1,1, 0,1)))
def update(self, img_path, frame):
"""
Update the texture to the given image path, and update the shaders with the new
frame information to unwrap the given image correctly.
"""
# Recalculate the variables required to unwrap the new image.
projector = PolygonProjector(frame.center_point, frame.center_vertices)
angle_bounds = [v.angle for v in projector.vertices]
radii = [p.center_dist for p in projector.projectors]
angles = [p.center_angle for p in projector.projectors]
# Load the new image, and update the size variables.
self.texture = pyglet.image.load(img_path).get_texture()
region_w, region_h = self.texture.width, self.texture.height
actual_w, actual_h = self.texture.owner.width, self.texture.owner.height
# Update the shader variables.
self.shader.bind()
self.shader.uniformf('region_size', region_w, region_h)
self.shader.uniformf('actual_size', actual_w, actual_h)
self.shader.uniformfv('angle_bounds', 1, angle_bounds)
self.shader.uniformfv('radii', 1, radii)
self.shader.uniformfv('angles', 1, angles)
self.shader.uniformi('count', len(radii))
self.shader.unbind()
def draw(self):
"""Draw the unwrapped image to the window."""
glBindTexture(self.texture.target, self.texture.id)
self.shader.bind()
self.batch.draw()
self.shader.unbind()
glBindTexture(self.texture.target, 0)
def save_image(self, filename):
"""Save the current window image to the given filename."""
pyglet.image.get_buffer_manager().get_color_buffer().save(filename)
def get_fps(self):
"""Get the current framerate in frames per second."""
return pyglet.clock.get_fps()