Re: [osg-users] Disabling VSYNC

by Robert Osfield > > HI Xam, > > When setting up the GraphicsWindow you pass in a > GraphicsContext::Traits object, this has a field vsync that defaults > to true. > > The other route would be to use putenv() in your app if you want to > use env vars to control the driver. > > Robert. > I

Re: [osg-users] Disabling VSYNC

Hey Robert, Yes, i know that's its def possible. It used to work when OSG used producer, but the new system somehow overlooked this feature. I believe it has something to do with glfwSwapInterval() Cheers, Maxim -- Read this topic online here: http://forum.openscenegraph.or

[osg-users] Graphics Card ID

Hi, I have 2 cards in my computer, and I'm trying to figure out what screen runs on which card. I found a page online that showed me how to do this a long time ago, but unfortunately did not write it down, and can't seem to find it again. I have 3 screens, and want one window on every screen

Re: [osg-users] Graphics Card ID

Hi, > I think you'll have to realize a viewer window on each screen, then use a > RealizeOperation to run a test like glGetString(GL_VENDOR) on each one, and > presumably you can tell from that info. If I create the window on every screen, and then detect the monitor and gpu info, that see

Re: [osg-users] Error Compiling OSG GL3 on Win7/VS 2008

Hi, I'm also having a problem with GL3 on windows. When I build OSG with GL3 available and run an osg example I get an error: GL3: Non-GL3 version number: 1.0 It looks like it is coming from the Statistics Handler. Is there a way to make OSG detect GL3 on windows? It is obviously there since

Re: [osg-users] GL3: non-GL3 version number: 1.0

Hi, I'm also having a problem with GL3 on windows. When I build OSG with GL3 available and run an osg example I get an error: GL3: Non-GL3 version number: 1.0 It looks like it is coming from the Statistics Handler. Is there a way to make OSG detect GL3 on windows? It is obviously there since i

Re: [osg-users] GL3: non-GL3 version number: 1.0

Hi Robert, Ah, interesting...I did not know that GL3 Profile in OSG was only for MAC compatibility. That is good to know. Default Windows GL headers are of the old 1.1 version. So the advanced later versions might be handled by the graphics card. So in GL2 profile, will OSG be able to use GL

Re: [osg-users] GL3: non-GL3 version number: 1.0

Hi Robert, -DOPENGL=GLCORE is that the same as OPENGL_PROFILE in the cmake gui? It is set to GL2 by default ... Thank you! Cheers, Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=72169#72169 ___

Re: [osg-users] GL3: non-GL3 version number: 1.0

Hi Robert, No, problem, happens to all of us. I changed the value for OPENGL_PROFILE to GLCORE, but is there a wrong and the right way to do it? I looked in CMakeLists.txt, and it seems when OPENGL_PROFILE is set to GLCORE all kind of different options get changed. If I edit line 401 from

Re: [osg-users] GL3: non-GL3 version number: 1.0

Hi Robert, I might have found the headersgoing to try them next week. For records they are located here: Link (https://www.khronos.org/registry/OpenGL/index_gl.php) Before I do though, does switching to GL3 or GLCORE has any performance or feature enhancements over the default GL2 profile

Re: [osg-users] GL3: non-GL3 version number: 1.0

Got it! Thank you Robert!!! V/R, --Maxim Thank you, --Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=72175#72175 ___ osg-users mailing list osg-users@lists.opensceneg

[osg-users] Get RGB Values from Textrue

Hi, I have a osg::Texture2D that I'm using as a render to texture target. I can see that it is working on the screen, but I need to have access to the RGB values of the texture itself so I can also copy them to another API. How can I access the RGB values? After rendering a frame, if I access

Re: [osg-users] Get RGB Values from Texture

Thanks that helped me out a lot, but now I have an additional question: How is the RGB actually stored in the image? >From my Image I can now get the Raw Data, but what does it represent and how >is it stored? Image->data(x,y,0)? what does it return? How do I get the individual R, G and B va

Re: [osg-users] Get RGB Values from Texture

Hi Robert, My Image is in GL_RGBA format stored as GL_UNSIGNED_BYTE Given that information, is there a way to decompose the Unsigned Byte I get from Image->data(x,y,0) to R, G, B and A? V/R, --Maxim Thank you, --Maxim -- Read this topic online here: ht

Re: [osg-users] OSG gathering during my visit to Virginia in December

Looking forward to seeing and meeting everyone! --Maxim Thank you, --Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=72584#72584 ___ osg-users mailing list osg-users@li

Re: [osg-users] Lets slowly update extension gl symbols to latest OpenGL specification with each submission.

Hi, Has this been resolved, or are there any news on keeping GL extensions updated? I just ran into a problem where Code: #define GL_READ_ONLY 0x88B8 was missing from GL_VERSION_1_5 section. If GLEW was included it of course worked. So having extensions updated to 4.6 would be very usef

Re: [osg-users] Lets slowly update extension gl symbols to latest OpenGL specification with each submission.

Hi Robert, You are right, Windows is missing most of the GL calls from 1.3 and on. I'm using Win7 VS2015 with OSG 3.4.1. ... Thank you! Cheers, Maxim Thank you, --Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=

Re: [osg-users] OpenSceneGraph-3.6.1 release candidate 6 tagged

Hi Robert, We found a bug in the timer class. in osg/Timer lines 21 to 25 read: Code: #if defined(_MSC_VER) typedef __int64 Timer_t; #else typedef unsigned long long Timer_t; #endif but it should be Code: #if defined(_MSC_VER) typedef unsigned __int64 Timer_t; #else typ

[osg-users] OSG API Guides

Hi Robert, Are the API reference guides for OSG 3.6.1 offline? I cant seem to access them from google or from the OSG page... https://codedocs.xyz/openscenegraph/OpenSceneGraph/a01741.html Thank you, --Maxim -- Read this topic online here: http://forum.o

Re: [osg-users] OSG API Guides

Hmm... I think US Gov departments are blocking https://codedocs.xyz I will check from home also... Thank you, --Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=73989#73989 ___

Re: [osg-users] OSG API Guides

Did a check from home, Everything works. So it seems that it's the proxy that is blocking it. Is there a way to get a downloaded or checked out copy of the API? This way we can have it on our internal network for reference? I saw that some people had the OSG 3.0 API online, so wondering how the

Re: [osg-users] OSG API Guides

Awesome!!! Thank you, I'll give that a try! Thank you, --Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=74014#74014 ___ osg-users mailing list osg-users@lists.openscen

[osg-users] GL3 Profile

Hi, 1) I've been playing around with GL3 and CORE profiles on windows, and noticed that for CORE, the CMake script makes VS look for GL/glcorearb.h and for GL3 profile it makes VS look for GL3/gl3.h neither of which are present on windows or VS. Just taking the glcorearb.h from the cronos page

Re: [osg-users] [build] Building OpenSceneGraph-3.6.0 on Windows 10 with VS2017

Hi, I've been building OSG 3.6.1 with no problems on VS 2017 I have prebuilt dependencies that I keep, and the instructions I follow are this: in CMake Press Configure Select Visual Studio 15 2017 Win64, press Finish Change CMAKE_INSTALL_PREFIX to D:/Development/TrueReality/Ext (This is where m

Re: [osg-users] GL3 Profile

Hi Robert, Would it help if I submit a fix for windows to make GL3 work out of the box? It seems to be an easy one... At least this way it will not error out if someone selects it... Thank you, --Maxim -- Read this topic online here: http://forum.opensce

Re: [osg-users] GL3 Profile

Hi Robert, It does not work like that on windows. Windows by default does not come with gl3.h or GLcorearb.h and neither does Visual Studio, so you need to install extra dependencies to make the OSG GL3 or GLCORE profiles to work. Otherwise you get errors when you select them as an option and t

Re: [osg-users] OSG API Guides

Just got a chance to sit down and try to build the documentation. Is the Doxy file created for linux only? Or is there another way to manually generate the docs? I'm getting: Code: error: tag HTML_FOOTER: footer file `${OpenSceneGraph_SOURCE_DIR}/doc/Doxyfiles/custom_Footer.html' does not exi

Re: [osg-users] GL3 Profile

Hi Robert, That is correct, I want to do a fallback. We don't want to do anything like GL3_WINDOWS since most likely that will have to have a new external dependency. But if we make the GL3 profile fall back on what already is there, it might be missing a few functions that the user will have

Re: [osg-users] GL3 Profile

Hi Dan, > I had to download and slightly modify the Khronos glcorearb.h file That is actually what I'm trying to avoid. Having another dependency which users have to download and modify. > What and where is the "modern default windows GL headers" ? There is only one gl/GL.h in windows. I

Re: [osg-users] OSG API Guides

Ah, got it! It looks like the instructions on http://www.openscenegraph.org/index.php/documentation/guides/user-guides/106-create-doxygen-documentation Are wrong. You first need to run cmake on the solution with BUILD_DOCUMENTATION:BOOL=ON Then if you are in Windows you need to manually tell VS

Re: [osg-users] GL3 Profile

Made a PR #570 I will investigate windows GL libraries further, and see if I can make the Kronos GL headers work on windows without much modifications. If I succeed I'll make another PR with fixes that will give users full GL functionality on Windows. Thank you, --Maxi

[osg-users] Float vs double in BOUNDINGSPHERE and BOUNDINGBOX

Hi, Is there a reason why OSG_USE_FLOAT_BOUNDINGBOX and OSG_USE_FLOAT_BOUNDINGSPHERE are set to YES in cmake by default? Since most CPUs now use doubles natively and emulate floats, making float calculations a little slower, would it not be better for OSG speed and performance to have these op

Re: [osg-users] OpenSceneGraph-3.6.2 release candidate 3

Made a Windows GL3 profile PR #570. It should fix some GL3 CMake problems on windows... Thank you, --Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=74220#74220 ___ osg

Re: [osg-users] GL3 Profile

Very well. The name is actually a psychological test. It means different things depending on your outlook and demeanor. If you are more negative and take a more snap judgement outlook, then yes, it means something negative to you. If you you are a more positive person and look for a deeper mean

Re: [osg-users] Float vs double in BOUNDINGSPHERE and BOUNDINGBOX

Correct, But since system memory is fairly large now days, and cheap, would the performance bottleneck be in the RAM or the CPU? Do we need to test this to see if Doubles vs Floats do a speedup in OSG? Thank you, --Maxim -- Read this topic online here:

Re: [osg-users] GL3 Profile

Hi Robert, I understand your opinion, but respectfully disagree. This test has been working just fine for over 20 years. This is not something made up last night. > There are people out their struggling for physical and mental health, > or have loved ones who they have lost or struggling.

Re: [osg-users] Updating scene properties instead of recreating it each frame

Hi OmegaDoom, When you do: geometry.setVertexArray(&vertices); you are not actually updating anything, you are replacing the vertex array. So you are still doing deallocation and allocation. If you want to just update them, I would say do what you were doing, do what Andreas said, and... osg::

Re: [osg-users] Updating scene properties instead of recreating it each frame

You definitely need to dirty the list, and you are right, there is no deallocation when you clear the vector, but isn't there allocation when you create a new vertex before you push it to the vector? Also, the polygons can have a different number of points, as long as say polygon1 always has 6

Re: [osg-users] [build] Building OpenSceneGraph-3.6.0 on Windows 10 with VS2017

Thank you, --Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=75093#75093 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/