OpenGL.GL.EXT.transform_feedback
index
/home/mcfletch/pylive/OpenGL/GL/EXT/transform_feedback.py

OpenGL extension EXT.transform_feedback
 
This module customises the behaviour of the 
OpenGL.raw.GL.EXT.transform_feedback to provide a more 
Python-friendly API
 
Overview (from the spec)
        
        This extension provides a new mode to the GL, called transform feedback,
        which records selected vertex attributes for each primitive processed by
        the GL.  The selected attributes are written into buffer objects, and can
        be written with each attribute in a separate buffer object or with all
        attributes interleaved into a single buffer object.  If a geometry shader
        is active, the primitives recorded are those emitted by the geometry
        shader.  Otherwise, transform feedback captures primitives whose vertices
        are transformed by a vertex shader.  In either case, the primitives
        captured are those generated prior to clipping.  Transform feedback mode
        captures the values of specified varying variables emitted from GLSL
        vertex or geometry shaders.
        
        The vertex data recorded in transform feedback mode is stored into buffer
        objects as an array of vertex attributes.  The regular representation and
        the use of buffer objects allows the recorded data to be processed
        directly by the GL without requiring CPU intervention to copy data.  In
        particular, transform feedback data can be used for vertex arrays (via
        vertex buffer objects), as the source for pixel data (via pixel buffer
        objects), as shader constant data (via the NV_parameter_buffer_object or
        EXT_bindable_uniform extensions), or via any other extension that makes
        use of buffer objects.
        
        This extension introduces new query object support to allow transform
        feedback mode to operate asynchronously.  Query objects allow applications
        to determine when transform feedback results are complete, as well as the
        number of primitives processed and written back to buffer objects while in
        transform feedback mode.  This extension also provides a new rasterizer
        discard enable, which allows applications to use transform feedback to
        capture vertex attributes without rendering anything.
 
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/EXT/transform_feedback.txt

 
Modules
       
OpenGL.arrays
OpenGL.constant
OpenGL.constants
ctypes
OpenGL.extensions
OpenGL.GL.glget
OpenGL.platform
OpenGL.wrapper

 
Data
        EXTENSION_NAME = 'GL_EXT_transform_feedback'
GL_INTERLEAVED_ATTRIBS_EXT = GL_INTERLEAVED_ATTRIBS_EXT
GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT = GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT
GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT = GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT
GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT = GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT
GL_PRIMITIVES_GENERATED_EXT = GL_PRIMITIVES_GENERATED_EXT
GL_RASTERIZER_DISCARD_EXT = GL_RASTERIZER_DISCARD_EXT
GL_SEPARATE_ATTRIBS_EXT = GL_SEPARATE_ATTRIBS_EXT
GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_EXT = GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_EXT
GL_TRANSFORM_FEEDBACK_BUFFER_EXT = GL_TRANSFORM_FEEDBACK_BUFFER_EXT
GL_TRANSFORM_FEEDBACK_BUFFER_MODE_EXT = GL_TRANSFORM_FEEDBACK_BUFFER_MODE_EXT
GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_EXT = GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_EXT
GL_TRANSFORM_FEEDBACK_BUFFER_START_EXT = GL_TRANSFORM_FEEDBACK_BUFFER_START_EXT
GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_EXT = GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_EXT
GL_TRANSFORM_FEEDBACK_VARYINGS_EXT = GL_TRANSFORM_FEEDBACK_VARYINGS_EXT
GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH_EXT = GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH_EXT
__file__ = '/home/mcfletch/pylive/OpenGL/GL/EXT/transform_feedback.pyc'
__name__ = 'OpenGL.GL.EXT.transform_feedback'
__package__ = 'OpenGL.GL.EXT'
glBeginTransformFeedbackEXT = <OpenGL.platform.baseplatform.glBeginTransformFeedbackEXT object at 0x77a3e50>
glBindBufferBaseEXT = <OpenGL.platform.baseplatform.glBindBufferBaseEXT object at 0x76f1790>
glBindBufferOffsetEXT = <OpenGL.platform.baseplatform.glBindBufferOffsetEXT object at 0x77a3f50>
glBindBufferRangeEXT = <OpenGL.platform.baseplatform.glBindBufferRangeEXT object at 0x77a3e90>
glEndTransformFeedbackEXT = <OpenGL.platform.baseplatform.glEndTransformFeedbackEXT object at 0x77a3110>
glGetTransformFeedbackVaryingEXT = <OpenGL.platform.baseplatform.glGetTransformFeedbackVaryingEXT object at 0x77ab0d0>
glTransformFeedbackVaryingsEXT = <OpenGL.platform.baseplatform.glTransformFeedbackVaryingsEXT object at 0x77a3fd0>