ShadowCameraSetup question

hi,

I'm trying to use one the Uniform Focused or LiSPM shadow cameras, but I'm not sure I'm doing it right. I'm basing my code off the Shadows demo.

I tried two different things. First,

self.focused = Ogre.FocusedShadowCameraSetup()
self.mCurrentShadowCameraSetup=Ogre.ShadowCameraSetup(self.focused)
self.sceneManager.setShadowCameraSetup(self.mCurrentShadowCameraSetup)

that gives me this error:

Boost.Python.ArgumentError: Python argument types in
ShadowCameraSetup.__init__(ShadowCameraSetup, FocusedShadowCameraSetup)
did not match C++ signature:
__init__(_object*)


It also tried just doing this:


focusedSetup = Ogre.FocusedShadowCameraSetup()
self.sceneManager.setShadowCameraSetup(focusedSetup)


and it was fine with that, but I got another error a little later on:


self.setGuiCaption('Core/AverageFps', 'Average FPS: %f' % statistics.getAverageFPS())
AttributeError: 'wrapper_descriptor' object has no attribute 'getShadowCamera'


Which is in the Framework code that draws the debug gui.

If I take that out I still get the same AttributeError at any line that involves self.RenderWindow(), such as

def frameStarted(self,frameEvent):
if (self.renderWindow.isClosed()):
return False


I really love how those other shadow cameras look ... any idea what I'm doing wrong?

I ran into exactly the same problem when trying to setup the PSSM demo, however its easy to solve:

focusedSetup = Ogre.FocusedShadowCameraSetup()
self.sceneManager.setShadowCameraSetup(focusedSetup)

you just need to keep a reference to the shadowCameraSetup, like this:

self.focusedSetup = Ogre.FocusedShadowCameraSetup()
self.sceneManager.setShadowCameraSetup(self.focusedSetup)

the PSSM demo I ported is now in the SVN for python-ogre and works, so go check that out if you like.

thanks! I tried that out and it got closer, but died further along. I'll check out the demo, should be able to get it working from that.

in the meantime, I get this exception:

ogre.renderer.OGRE._ogre_exceptions_.OgreException: OGRE EXCEPTION(2:): All fram
ebuffer formats with this texture internal format unsupported in GLFrameBufferOb
ject::initialise at OgreGLFrameBufferObject.cpp (line 276)


thrown by

def go(self):
self.setUp()
self.root.startRendering()


Sounds like your depth texture format is not compatible with openGL,

what texture format are you using for shadow casters? Here's what I've got in the PSSM demo ( though you'll want to reduce the count from 4 to 1 or maybe 2 )


self.sceneManager.setShadowTextureSettings(1024, 4, ogre.PF_FLOAT32_R)

thanks bharling!

changing the format worked. I used PF_X8R8G8B8; thought that was already the default, but I guess you do have to set it explicitly.

Strangely, 512x1x PF_FLOAT32_R demolished my framerate. I have a QuadroFX 1400 so I thought it would be able to handle it, but maybe not.