On Jan 18, 2010, at 1:10 PM, David Duncan wrote:
I'm not certain what you mean by this. All layers participate in
implicit animations, although each layer type can specify which keys
are implicitly animated (and this can be further customized by
developers). If you are saying that CAOpenGLLayer has a different
set of default implicit animations, thats entirely possible, but
they both should use the same mechanism.
I have been implementing my CAOpenGLLayer subclass using the standard
draw method.
- (void)drawInCGLContext:(CGLContextObj)context
pixelFormat:(CGLPixelFormatObj)format
forLayerTime:(CFTimeInterval)interval
displayTime:(const CVTimeStamp *)timeStamp
{
// Do some OpenGL drawing ...
}
When I do this the OpenGL layer has no animations what so ever. So in-
other-words when I simply draw, using the standard draw method, there
are no animations.
To get the same effect with CALayer I need to override -actionForKey:.
Thats what I meant by CALayer having automatic animation and
CAOpenGLLayer having manual animation.
--Richard
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