Hi,
I have a few different pipelines rendering images, some QC-based, some
OpenGL/CI-based, some Quartz/CI-based. All have colorspaces associated.
The QC-based renderings has a slightly different color output. I think
this is because my CI-based contexts have this setup, which sems not
possible to create through QCRenderer:
CGColorSpaceRef colorSpace =
CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
(id)colorSpace,kCIContextOutputColorSpace,
(id)colorSpace,kCIContextWorkingColorSpace,
nil];
_hiresImageContext = [CIContext
contextWithCGContext:_hiresGraphicsContext options:options];
The rendering are the same if options is set to nil in the CI-based
contexts. QCRenderer is created with this code:
CGColorSpaceRef colorSpace =
CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
id path = [[NSBundle mainBundle] pathForResource:@"HYTheater"
ofType:@"qtz" inDirectory:nil];
id composition = [QCComposition compositionWithFile:path];
_qcTheater = [[QCRenderer alloc] initWithCGLContext:[_openGLContext
CGLContextObj] pixelFormat:[_openGLPixelFormat CGLPixelFormatObj]
colorSpace:colorSpace composition:composition];
Any advice to setup the QCRenderer to render the same as CIContexts ?
Thanks,
Raphael
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