def _get_active_attributes(self):
""" Extract active attributes from GPU """
count = gl.glGetProgramiv(self.handle, gl.GL_ACTIVE_ATTRIBUTES)
attributes = []
# This match a name of the form "name[size]" (= array)
regex = re.compile("""(?P<name>\w+)\s*(\[(?P<size>\d+)\])""")
for i in range(count):
name, size, gtype = gl.glGetActiveAttrib(self.handle, i)
# This checks if the attribute is an array
# Name will be something like xxx[0] instead of xxx
m = regex.match(name)
# When attribute is an array, size corresponds to the highest used index
if m:
name = m.group('name')
if size >= 1:
for i in range(size):
name = '%s[%d]' % (m.group('name'),i)
attributes.append((name, gtype))
else:
attributes.append((name, gtype))
return attributes
def _get_active_attributes(self):
""" Extract active attributes from GPU """
count = gl.glGetProgramiv(self.handle, gl.GL_ACTIVE_ATTRIBUTES)
attributes = []
# This match a name of the form "name[size]" (= array)
regex = re.compile("""(?P<name>\w+)\s*(\[(?P<size>\d+)\])""")
for i in range(count):
name, size, gtype = gl.glGetActiveAttrib(self.handle, i)
# This checks if the attribute is an array
# Name will be something like xxx[0] instead of xxx
m = regex.match(name)
# When attribute is an array, size corresponds to the highest used index
if m:
name = m.group('name')
if size >= 1:
for i in range(size):
name = '%s[%d]' % (m.group('name'),i)
attributes.append((name, gtype))
else:
attributes.append((name, gtype))
return attributes
def active_attributes(self):
"""
List of active attributes requested from GPU (read only).
.. note::
An inactive attribute is an attribute that has been declared
but that is not actually used in the shader.
Example:
.. code::
attribute vec3 normal; # Inactive
attribute vec3 position; # Active
void main() {
gl_Position = vec4(position, 1.0);
}
"""
count = gl.glGetProgramiv(self.handle, gl.GL_ACTIVE_ATTRIBUTES)
attributes = []
# This match a name of the form "name[size]" (= array)
regex = re.compile("""(?P<name>\w+)\s*(\[(?P<size>\d+)\])""")
for i in range(count):
name, size, gtype = gl.glGetActiveAttrib(self.handle, i)
name = name.decode()
# This checks if the attribute is an array
# Name will be something like xxx[0] instead of xxx
m = regex.match(name)
# When attribute is an array, size corresponds to the highest used index
if m:
name = m.group('name')
if size >= 1:
for i in range(size):
name = '%s[%d]' % (m.group('name'), i)
attributes.append((name, gtype))
else:
attributes.append((name, gtype))
return attributes
def active_attributes(self):
"""
List of active attributes requested from GPU (read only).
.. note::
An inactive attribute is an attribute that has been declared
but that is not actually used in the shader.
Example:
.. code::
attribute vec3 normal; # Inactive
attribute vec3 position; # Active
void main() {
gl_Position = vec4(position, 1.0);
}
"""
count = gl.glGetProgramiv(self.handle, gl.GL_ACTIVE_ATTRIBUTES)
attributes = []
# This match a name of the form "name[size]" (= array)
regex = re.compile("""(?P<name>\w+)\s*(\[(?P<size>\d+)\])""")
for i in range(count):
name, size, gtype = gl.glGetActiveAttrib(self.handle, i)
name = name.decode()
# This checks if the attribute is an array
# Name will be something like xxx[0] instead of xxx
m = regex.match(name)
# When attribute is an array, size corresponds to the highest used index
if m:
name = m.group('name')
if size >= 1:
for i in range(size):
name = '%s[%d]' % (m.group('name'),i)
attributes.append((name, gtype))
else:
attributes.append((name, gtype))
return attributes
