NormalAttribute
(gl_type)¶Normal vector attribute.
Constructor:
__init__
(gl_type)¶Methods:
enable
()get_region
(buffer, start, count)Map a buffer region using this attribute as an accessor. set_pointer
(pointer)set_region
(buffer, start, count, data)Set the data over a region of the buffer.
Attributes:
Methods
NormalAttribute.
get_region
(buffer, start, count)Map a buffer region using this attribute as an accessor.
The returned region can be modified as if the buffer was a contiguous array of this attribute (though it may actually be interleaved or otherwise non-contiguous).
The returned region consists of a contiguous array of component data elements. For example, if this attribute uses 3 floats per vertex, and the count parameter is 4, the number of floats mapped will be
3 * 4 = 12
.
Parameters:
- buffer (AbstractMappable) – The buffer to map.
- start (int) – Offset of the first vertex to map.
- count (int) – Number of vertices to map
Return type: AbstractBufferRegion
NormalAttribute.
set_region
(buffer, start, count, data)Set the data over a region of the buffer.
Parameters:
- buffer (AbstractMappable) – The buffer to modify.
- start (int) – Offset of the first vertex to set.
- count (int) – Number of vertices to set.
- data (sequence) – Sequence of data components.