Hello Dirk,
> >> Thanks! Looking at the log I've noticed that at one point this changes: > >> from: glClearDepth(1.000000) to: glClearDepth(0.000000) > >> > >> So the problem is that you are clearing the depth buffer with the value for > >> objects 'in' the near plane and nothing will pass the depth test afterward. > >> Do you at some point change the clear depth of a background perhaps? > >> > > > > Yes, I changed the clear Depth. But this does just effects, that the values > > after the near-plane is behind the geometry are not '0' but '255'. > > > > It does not affect, that the image values are not changing after that. > > Hm, not sure I follow on this one. ClearDepth will change the value the depth > buffer is cleared to. If you set it to 0, with the usual GL_LEQUAL depth > test, > only the pixels on the near plane will be drawn, everything else will be > invisible. > > Perhaps I might describe the behaviour again, I could have made it not clear > > enough. > > > > I start my program and setup the scenegraph. Then I render the scene 4 times > > in one function, with different states. After the 3rd rendering I print out > > the stencil values. > > > > When I first start the rendering the image shows, what I expect. Then I > > render more times with different near plane values and the image does not > > change (but it should) until i reach the point, where the nearplane is > > beyond > > the geometry. Then the buffer shows just '255'. > > > > After that I change the nearplane value back to where the geometry should be > > visible, but nothing happens with the image. > > > > I hope this helps a bit to understand what I mean. > > > > I thougt it could be, that I forget to change the States to the standard > > values after rendering my 4 times, but I can't explain the sudden change, > > when the nearplane gets behind the geometry, with that explanation. > > Do you think there is a way for us to get something that demonstrates this > algorithm? A cur-down version of your program, or maybe you can just > cut-n-paste > the core into an example program? We're really having a hard time seeing > where > this is supposed to go. > I uploaded my class at http://drop.io/r87kp1w I hope it helps to understand what I want and what does not work. I'm very grateful for your plenty efforts to help me. Thank you all, Constantin ------------------------------------------------------------------------------ Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensg-users
