Re: [osg-users] HUD with perspective

Yes, that can be cool Star Wars-like text effect!! The force is strong with this one... -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of arnaud houegbelo Sent: Tuesday, February 19, 2008 3:59 PM To: osg-users@lists.openscenegraph.org Subject: [osg-users

[osg-users] HUD with perspective

Hello, I want to display a HUD without text but with perspective. I used the code exemple osghud.cpp. Instead of creating a geode with text I create a geode with a shape like sphere or box. It woks fine. But I want to display it with a perspective. When I create the osg::Camera instead of using

Re: [osg-users] HUD with perspective

Hi Arnuad, You'll need to specify a view matrix for the camera to position the view frustum over the part of the HUD scene you want. Robert. On Feb 19, 2008 1:18 PM, arnaud houegbelo [EMAIL PROTECTED] wrote: Hello, I want to display a HUD without text but with perspective. I used the code

Re: [osg-users] HUD with perspective

On Feb 19, 2008 1:31 PM, arnaud houegbelo [EMAIL PROTECTED] wrote: Hi Robert, Many Thanks for your answer but can you give me a small code exemple? How long is a piece of string? What is the sound of one hand clapping? Both questions one can't really answer... and code example that does

[osg-users] HUD with perspective

Hi Robert, Many Thanks for your answer but can you give me a small code exemple? Best Regards Arnaud Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs

[osg-users] HUD with perspective

Many Thanks for the funny answer :) I knwo that I must use setViewMatrix(), but I already tried to use it with a perpective matrix with no good result. But perhaps my parameter are wrong. But if you said that I can use the osghud.cpp exemple and apply a view matrix on the camera is going to be

[osg-users] HUD with perspective

Hi Robert, In the code exemple osghud.cpp we have the possibility to avoid to the camera to grab the event of the main camera viewers with camera-setAllowEventFocus(false); I want that my HUD oject use my trackball event for dipslay (eg if I make rotation the HUD follow the trackball rotation).

Re: [osg-users] HUD with perspective

You have to set both the view matrix and the projection matrix of the camera. The view matrix is the pose of the scene coordinate system in the camera coordinate system. Use voidsetViewMatrixAsLookAt (const osg::Vec3 eye, const osg::Vec3 center, const osg::Vec3 up) and provide it with the

Re: [osg-users] HUD with perspective

On Feb 19, 2008 4:19 PM, arnaud houegbelo [EMAIL PROTECTED] wrote: In the code exemple osghud.cpp we have the possibility to avoid to the camera to grab the event of the main camera viewers with camera-setAllowEventFocus(false); I want that my HUD oject use my trackball event for dipslay (eg

[osg-users] HUD with perspective

Many thanks for your answer Per Rosengren, I tried it and it works fine. Sorry, but I forgot to use the Look at function. Many thanks Best Regards Arnaud You have to set both the view matrix and the projection matrix of the camera. The view matrix is the pose of the scene coordinate