Thanks.
I managed to get a work around (ie. ugly hack) working last night, but I
will try to take a look at this method for the next time.
-Allen
Andreas Zieringer wrote:
Hi Allen,
I added a new method addParameterCallback("OSGSpecialParameter",
myCallback). The parameter name needs to begin with "OSG"!
I added a small example to
OpenSG/Source/Experimental/SHL/testSHLLights.cpp
Andreas
I am working on an application that uses SHLChunks in a multi-pipe
environment. I need the ability to set some uniform parameters on
some shaders that:
- Vary each frame
- Vary depending upon the context (OSG::Window) that is being used
- May need to vary based upon the action being used or the current
pass (multipass rendering)
From what I can tell, this is not currently allowed by SHLChunks.
While looking into it though I noticed that this is the exact type of
functionality that OpenSG uses internally to set it's internal "OSG"
uniforms like "OSGCameraPosition". I think it would possible for me
to do what I need if users had the ability to add uniform callbacks
to the internal _osg_ParametersCallbacks vector. Then I could right
a callback method in my application that could set the uniform
manually based upon the action* and program passed to the callback
(assuming it had the same signature as the current callbacks).
Is this something that will/could be added in the future?
-Allen
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