[osg-users] issues with osgdistortion

Hello forum, I am trying to render the whole scene in a texture and then i shall send the texture through a fragment program for post processing and then render this texture in a screen aligned quad. In some previous posts Robert suggested to look into the osgdistortion program, and now i am tryi

Re: [osg-users] osgSim::HeightAboveTerrain not returning any hits

Murray, Excellent! I'm glad you got things working... -Shayne -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Murray G. Gamble Sent: Thursday, November 25, 2010 10:58 AM To: OpenSceneGraph Users Subject:

Re: [osg-users] [Newbie] make Fire with OSG

Hi, thanks you rock ;) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34158#34158 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-

Re: [osg-users] Problem with render to texture (RTT)

Hi Robert, I actually found an example in this mailing list (don't exactly know where, the link is in my code which i cannot reach now ;)) today which helped me quite a lot, as it pointed out that I actually had to modify the viewer camera itself, which was not clear to me before. In fact I w

Re: [osg-users] [Newbie] make Fire with OSG

HI Alji, Have a look at the osgparticle and osgparticleeffects examples. Also have a look at the cessnafire.osg. Robert. On Fri, Nov 26, 2010 at 1:18 PM, Alji Simo wrote: > Hello, > > I need to make fire and add to 3dModels.ive . > > Please how I am supposed to do that ? where to start ? how ?

Re: [osg-users] My Render to Texture is very slow

Hi Martin, 2010/11/26 "Martin Großer" : > that is correct with the frame rate. 380 fps is ok, but it is a very simple > scene. But what happens if I have 150.000 polygons? My apprehension is that > the frame rate will break down. You wrote there are an approach to render to > texture only on th

Re: [osg-users] How to render the OSG scene to an image file?

[quote="Frederic Bouvier"]Hi Igor, did you search in the example folder ? I am sure that more than one use a pbuffer. More use framebuffer objects. You can have a look to osgscreencapture [quote] Thanks, Fred, unfortunately osgscreencapture has the same bug. When i call osgscreencapture.exe axe

Re: [osg-users] Using Geometry Shaders in OSG 2.9.9

Would you believe as I clicked "submit", I thought, "gee, maybe I should have checked for typos..."? Actually, I had changed the enumerator in a futile effort to make it work, then changed it back and must have mistyped. Anyway, as I suspected, correcting the error made no difference in the e

Re: [osg-users] How to render the OSG scene to an image file?

Hi Igor, did you search in the example folder ? I am sure that more than one use a pbuffer. More use framebuffer objects. You can have a look to osgscreencapture Regards, -Fred - "Igor Galochkin" a écrit : > I am still stuck. Guys, any suggestions? > > My colleague tried to solve the pro

Re: [osg-users] osgParticle::FireEffect only one minute

well a very good advice and answer ;) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34143#34143 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.

[osg-users] [Newbie] make Fire with OSG

Hello, I need to make fire and add to 3dModels.ive . Please how I am supposed to do that ? where to start ? how ? please notice that I am very new to OSG environnement, so any help is welcome :) Thank you -- Read this topic online here: http://forum.openscenegraph.org/viewtopic

Re: [osg-users] [osgPlugins] OSG Plugins

Hi, Even setting the OSG_NOTIFY_LEVEL to DEBUG, everything appears to be OK... Thank you! Cheers, Samuel -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34142#34142 ___ osg-users mailing list osg-us

Re: [osg-users] My Render to Texture is very slow

Hello Robert, that is correct with the frame rate. 380 fps is ok, but it is a very simple scene. But what happens if I have 150.000 polygons? My apprehension is that the frame rate will break down. You wrote there are an approach to render to texture only on the gpu. How can I do that? With a G

Re: [osg-users] How to render the OSG scene to an image file?

I am still stuck. Guys, any suggestions? My colleague tried to solve the problem and came to a conclusion that Viewer can't render to any offscreen buffer. He tries to render the OSG scene without using the Viewer, by direct calls to OpenGL. The following code just creates an Images filled with

Re: [osg-users] Compressed Sub Images

Hi Mikhail, Here is my current texture initialization code: osg::ref_ptr < osg::Image > physTextureImage = new osg::Image (); physTextureImage->allocateImage ( 2048, 2048, 0, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_UNSIGNED_BYTE ); osg::ref_ptr < osg::Texture2D > physTexture = new osg::Texture2D (

Re: [osg-users] Using Geometry Shaders in OSG 2.9.9

Hi Joel, > layout (traingle_strip, max_vertices = 3) out; I doubt this valid GLSL. Try layout (triangle_strip, max_vertices = 3) out; instead ;-) Regards, -Fred - "Joel Graff" a écrit : > Hi, > > I've been developing an app in OpenSceneGraph to help me learn > shaders. One component o

Re: [osg-users] Compressed Sub Images

Hi, 26.11.2010 17:11, Luciano da Silva wrote: I have tried the following code: osg::State * state = _viewer->getCamera ()->getGraphicsContext ()->getState (); _physicalTexture->apply ( *state ); // This is the texture to be updated. osg::Texture::Extensions * ext = osg::Texture::getExtensions

Re: [osg-users] Compressed Sub Images

Hi Mikhail, Thank you very much for your reply. I had previously tried that method, but with no success. I am sure i am doing something wrong somewhere. I have tried the following code: osg::State * state = _viewer->getCamera ()->getGraphicsContext ()->getState (); _physicalTexture->apply ( *

Re: [osg-users] My Render to Texture is very slow

Hi Martin, There isn't a technical problem, just a need of greater understanding of what's happening in OpenGL and the CPU and GPU. OpenGL has a deep FIFO buffer than your application put all the required OpenGL tokens and data into, the OpenGL driver packages this up and send it the GPU. This p

[osg-users] My Render to Texture is very slow

Hello, I've implemented a RTT example with osg and I my scene object is the cessna.osg. Without the RTT-Implementation I have around 4500 fps. But with the RTT I have only 380 fps. My Texture is 512 x 512. What is the Problem? I have got a GeForce 470 and a intel processor i7 820. I guess the h

Re: [osg-users] Fullscreen dual monitor spanning

Sometimes when also using TwinView it happened the same for me. As a temporal hack, I used a WindowSizeHandler, and pressed `f' two times at the start of the program. I should dive in the code to do it programmatically. Take a look at osgViewer::WindowSizeHandler::handle, maybe that toggleFullscre

Re: [osg-users] Compressed Sub Images

Hi, 25.11.2010 22:28, Luciano da Silva wrote: I believe it to be something on the lines of glCompressedTexSubImage2D, although i don't seem to find an equivalent method in OSG's Image or Texture classes. I have tried about "everything" i could remember, but nothing worked. You can take a look

Re: [osg-users] Fullscreen dual monitor spanning

Can nobody help me? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34116#34116 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-open

[osg-users] Picking from a render to texture scene

hi guys, i hope you can help me with my current problem. what i'm trying to achieve is picking an object from a render to texture scene. The current structure of my scenegraph is containing: - a main camera - a RenderToTextre-camera - a plane (rendered by the mainCam), which gets it's texture f

Re: [osg-users] How to avoid / minimize overdraw of osg::PrimitiveSet::POINTS

What might would work in this case is to create several smaller "sub volumes" (cubes for example), and tell osg to sort these front to back for rendering. Then you would still see some overdraw within individual sub volumes, but not so much among different sub volumes. _

Re: [osg-users] Dynamic Terrain

Hi Robert, ah, that might be the point: I have to ensure it is not rendered while updating it. I forgot it's multithreaded at that point :) Due to the type of error, and when it happens, I think it is a multithreading issue. Thank you! Cheers, Torben -- Read this topic online

Re: [osg-users] Dynamic Terrain

Hi Torben, I can't really know what the problem might be, this type of multi-threading issue really is something you'll need to debug and think about at your end. The specific warning you are getting suggests that ref counting has gone amiss, perhaps a dangling pointer somewhere. As a general no

Re: [osg-users] Starting a car simulator/game

Hi Louise, Create a simulator requires lots of different skills and tools, so I don't think you'll be able to find a single tutorial that specifically addresses just what are trying to do. Instead I think you'll need to think about breaking the project up into parts and come up with subgoals in y

Re: [osg-users] Problem with render to texture (RTT)

Hi Thorsten, >From your email I can't get me head around what exactly you mean. There are a series of render to texture examples that are good places to start when experimenting, osgprerender, osgprerendercube and osgdistortion all illustrate various ways of settings things up. Personally I would

Re: [osg-users] [build] How to properly use the OSG_GL3_AVAILABLE CMake option?

Hi, I eventually abandoned my tries to use GL3. As I stated before, at the time I tried to use it (under Windows) my conclusion was that the file osg/GL needs some fixing to work under Windows. I don't know what the state is now (I was using 2.9.9). Cheers, Florian -- Read thi