本文整理汇总了Python中pyglet.graphics.vertexbuffer.create_mappable_buffer函数的典型用法代码示例。如果您正苦于以下问题：Python create_mappable_buffer函数的具体用法？Python create_mappable_buffer怎么用？Python create_mappable_buffer使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了create_mappable_buffer函数的4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__
def __init__(self, attribute_usages):
self.allocator = allocation.Allocator(self._initial_count)
static_attributes = []
attributes = []
self.buffer_attributes = [] # list of (buffer, attributes)
for attribute, usage, vbo in attribute_usages:
if usage == GL_STATIC_DRAW:
# Group attributes for interleaved buffer
static_attributes.append(attribute)
attributes.append(attribute)
else:
# Create non-interleaved buffer
attributes.append(attribute)
attribute.buffer = vertexbuffer.create_mappable_buffer(
attribute.stride * self.allocator.capacity,
usage=usage, vbo=vbo)
attribute.buffer.element_size = attribute.stride
attribute.buffer.attributes = (attribute,)
self.buffer_attributes.append(
(attribute.buffer, (attribute,)))
# Create buffer for interleaved data
if static_attributes:
vertexattribute.interleave_attributes(static_attributes)
stride = static_attributes[0].stride
buffer = vertexbuffer.create_mappable_buffer(
stride * self.allocator.capacity, usage=GL_STATIC_DRAW)
buffer.element_size = stride
self.buffer_attributes.append(
(buffer, static_attributes))
for attribute in static_attributes:
attribute.buffer = buffer
# Create named attributes for each attribute
self.attributes = attributes
self.attribute_names = {}
for attribute in attributes:
if isinstance(attribute, vertexattribute.GenericAttribute):
index = attribute.index
if 'generic' not in self.attributes:
self.attribute_names['generic'] = {}
assert index not in self.attribute_names['generic'], \
'More than one generic attribute with index %d' % index
self.attribute_names['generic'][index] = attribute
else:
name = attribute.plural
assert name not in self.attributes, \
'More than one "%s" attribute given' % name
self.attribute_names[name] = attribute示例2: draw
def draw(size, mode, *data):
'''Draw a primitive immediately.
:Parameters:
`size` : int
Number of vertices given
`mode` : int
OpenGL drawing mode, e.g. ``GL_TRIANGLES``
`data` : data items
Attribute formats and data. See the module summary for
details.
'''
glPushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT)
buffers = []
for format, array in data:
attribute = vertexattribute.create_attribute(format)
assert size == len(array) // attribute.count, \
'Data for %s is incorrect length' % format
buffer = vertexbuffer.create_mappable_buffer(
size * attribute.stride, vbo=False)
attribute.set_region(buffer, 0, size, array)
attribute.enable()
attribute.set_pointer(buffer.ptr)
buffers.append(buffer)
glDrawArrays(mode, 0, size)
glFlush()
glPopClientAttrib()示例3: __init__
def __init__(self, attribute_usages, index_gl_type=GL_UNSIGNED_INT):
super().__init__(attribute_usages)
self.index_allocator = allocation.Allocator(self._initial_index_count)
self.index_gl_type = index_gl_type
self.index_c_type = vertexattribute._c_types[index_gl_type]
self.index_element_size = ctypes.sizeof(self.index_c_type)
self.index_buffer = vertexbuffer.create_mappable_buffer(
self.index_allocator.capacity * self.index_element_size,
target=GL_ELEMENT_ARRAY_BUFFER)示例4: draw_indexed
def draw_indexed(size, mode, indices, *data):
'''Draw a primitive with indexed vertices immediately.
:Parameters:
`size` : int
Number of vertices given
`mode` : int
OpenGL drawing mode, e.g. ``GL_TRIANGLES``
`indices` : sequence of int
Sequence of integers giving indices into the vertex list.
`data` : data items
Attribute formats and data. See the module summary for details.
'''
glPushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT)
buffers = []
for format, array in data:
attribute = vertexattribute.create_attribute(format)
assert size == len(array) // attribute.count, \
'Data for %s is incorrect length' % format
buffer = vertexbuffer.create_mappable_buffer(
size * attribute.stride, vbo=False)
attribute.set_region(buffer, 0, size, array)
attribute.enable()
attribute.set_pointer(buffer.ptr)
buffers.append(buffer)
if size <= 0xff:
index_type = GL_UNSIGNED_BYTE
index_c_type = ctypes.c_ubyte
elif size <= 0xffff:
index_type = GL_UNSIGNED_SHORT
index_c_type = ctypes.c_ushort
else:
index_type = GL_UNSIGNED_INT
index_c_type = ctypes.c_uint
index_array = (index_c_type * len(indices))(*indices)
glDrawElements(mode, len(indices), index_type, index_array)
glFlush()
glPopClientAttrib()