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'''OpenGL extension QCOM.texture_foveated
This module customises the behaviour of the
OpenGL.raw.GLES2.QCOM.texture_foveated to provide a more
Python-friendly API
Overview (from the spec)
Foveated rendering is a technique that aims to reduce fragment processing
workload and bandwidth by reducing the average resolution of a render target.
Perceived image quality is kept high by leaving the focal point of
rendering at full resolution.
It exists in two major forms:
- Static foveated (lens matched) rendering: where the gaze point is
fixed with a large fovea region and designed to match up with the lens
characteristics.
- Eye-tracked foveated rendering: where the gaze point is continuously
tracked by a sensor to allow a smaller fovea region (further reducing
average resolution)
Traditionally foveated rendering involves breaking a render target's area
into smaller regions such as bins, tiles, viewports, or layers which are
rendered to individually. Each of these regions has the geometry projected
or scaled differently so that the net resolution of these layers is less
than the original render target's resolution. When these regions are mapped
back to the original render target, they create a rendered result with
decreased quality as pixels get further from the focal point.
Foveated rendering is currently achieved by large modifications to an
applications render pipelines to manually implement the required geometry
amplifications, blits, and projection changes. This presents a large
implementation cost to an application developer and is generally
inefficient as it can not make use of a platforms unique hardware features
or optimized software paths. This extension aims to address these problems
by exposing foveated rendering in an explicit and vendor neutral way, and by
providing an interface with minimal changes to how an application specifies
its render targets.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/QCOM/texture_foveated.txt
'''
from OpenGL import platform, constant, arrays
from OpenGL import extensions, wrapper
import ctypes
from OpenGL.raw.GLES2 import _types, _glgets
from OpenGL.raw.GLES2.QCOM.texture_foveated import *
from OpenGL.raw.GLES2.QCOM.texture_foveated import _EXTENSION_NAME
def glInitTextureFoveatedQCOM():
'''Return boolean indicating whether this extension is available'''
from OpenGL import extensions
return extensions.hasGLExtension( _EXTENSION_NAME )
### END AUTOGENERATED SECTION
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