[Problem] Tilted camera at BSP maps

As the title says. I already researched and found that the coordinate sys of quake doesn't match ogre (or d3d). So when i load a BSP map in ogre, it would display the map's walls as the floor.

Supposedly, these line of code would fix this (found at the bottom part of http://grotsnik.ogre3d.org/wiki/index.p ... GtkRadiant , just translated for pyogre)
self.camera.setFixedYawAxis(True, ogre.Vector3.UNIT_Z)
self.camera.pitch(ogre.Degree(90).valueRadians())

This should work perfectly, but the weird thing is, the camera is tilted a bit.

I browsed through the cpp codes of the ogre sdk demos and translated a part of the BSP.cpp:
#ViewPoint vp = mSceneMgr->getSuggestedViewpoint(true);
vp = self.sceneManager.getSuggestedViewpoint(True)
#mCamera->setPosition(vp.position);
self.camera.position = vp.position
#mCamera->pitch(Degree(90)); // Quake uses X/Y horizon, Z up
self.camera.pitch(ogre.Degree(90).valueRadians())
#mCamera->rotate(vp.orientation);
self.camera.rotate(vp.orientation)
# Don't yaw along variable axis, causes leaning
#mCamera->setFixedYawAxis(true, Vector3::UNIT_Z);


similar to the previous code, this results in a tilted camera/world also.

as for now, i've just brute-forcibly adjusted the camera with this to fix the problem:
self.camera.roll(ogre.Degree(7).valueRadians())

i'd like to know if there're any others using pyogre who've encountered the same problem?... and for the guru's, do you know any proper way to solve this?

thanks in advanced!

Don't really use BSP, but I think this is just your camera settings, try using "camera.lookAt". Here's the code for the example you mentioned above.


# This code is in the public domain
from pyogre import ogre
import SampleFramework as sf

class BSPApplication(sf.Application):
def _chooseSceneManager(self):
self.sceneManager = self.root.createSceneManager("BspSceneManager")


def _createScene(self):
sceneManager = self.sceneManager
camera = self.camera
sceneManager.AmbientLight = (0.5, 0.5, 0.5)

sceneManager.setWorldGeometry("ogretestmap.bsp")

# modify camera for close work
camera.nearClipDistance = 10
camera.farClipDistance = 20000

# Get random player start point
vp = self.sceneManager.getSuggestedViewpoint(True)

camera.position = vp.position
camera.pitch(ogre.Degree(90).valueRadians()) # // Quake uses X/Y horizon, Z up
camera.rotate(vp.orientation)
# Don't yaw along variable axis, causes leaning
camera.setFixedYawAxis(True, ogre.Vector3.UNIT_Z)
# Look at the boxes
camera.lookAt(-150,40,30)

def _createFrameListener(self):
self.frameListener = BSPListener(self.renderWindow, self.camera, self.sceneManager)
self.root.addFrameListener(self.frameListener)

class BSPListener(sf.FrameListener):
def __init__(self, renderWindow, camera, sceneManager):
sf.FrameListener.__init__(self, renderWindow, camera)
self.sceneManager = sceneManager

def frameStarted(self, frameEvent):
return sf.FrameListener.frameStarted(self, frameEvent)


if __name__ == '__main__':
try:
application = BSPApplication()
application.go()
except ogre.OgreException, e:
print e