[osg-users] Passing different textures using GLSL
Hi, I need to develop an application to pass streams and lots of different textures into GPU for processing. An I suppose to use glTexSubImage2D? If so how do i used it and if there is any sample code I could refer to? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=41153#41153 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Passing multiple textures in glsl
Hi, I tried add these lines into my code: osg::Texture2DArray* tileImgLay; tileImgLay = new osg::Texture2DArray; tileImgLay-setTextureSize(128, 128, 2); tileImgLay-setUseHardwareMipMapGeneration(false); tileImgLay-setImage(0, osgDB::readImageFile(test1.bmp)); tileImgLay-setImage(1, osgDB::readImageFile(est1.bmp)); ss-setTextureAttribute(1, tileImgLay); tileImgLay-setFilter( osg::Texture2DArray::MIN_FILTER, osg::Texture2DArray::NEAREST); tileImgLay-setFilter( osg::Texture2DArray::MAG_FILTER, osg::Texture2DArray::NEAREST); ss-addUniform( new osg::Uniform(test, 1) ); and in the fragment shader: uniform sampler2DArray test; and access it using: gl_FragColor = texture2DArray(test, vec3(0, 0, 0)); However, it fail to work. Any ideal why? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=40370#40370 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Passing multiple textures in glsl
Hi, I did not get any compiler error. The application runs successfully. However, the texture did not seem to be loaded into the shader code. The image rendered as black in color. As the lines, Where should I add them? #version 120 #extension GL_EXT_gpu_shader4 : enable #extension GL_EXT_texture_array : enable I gotten error msg when I add them into the main .cpp file. Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=40372#40372 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Passing multiple textures in glsl
Hi, Nope. The typo is caused when I cut and paste into the posting textbox. I am quite sure the textures were loaded correctly. Any idea what is causing the problem? :( Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=40374#40374 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Passing multiple textures in glsl
Hi, Forgot to mention to I have this msg when I run the application. Warning: detected OpenGL error 'invalid enumerant' after RenderBin::draw(,) Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=40375#40375 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Passing multiple textures in glsl
Hi, I need to handle multiple textures in glsl. Any suggestions how do I do it? Should I use sampler2DArray? How do I use it? Any links I could take reference from? Also, is there a limit to the amount of textures I could load into GPU. I tried loading 25 4096by4096 textures and it crashes when I tried to load more. Is there any ways to increase the amount that I could load? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=40369#40369 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] rendering dae model into texture
Hi, I have an application to take various view of a dae model and render into textures. I used and worked from the sample project from osgScreenCapture. I managed to do the screen capture and the textures captured of the model appear to be textureless. When I tried to load other files eg openflight, the model captured appear to have textured mapped. I also tried to load the dae model using other osg application code and the model appears perfect with relevant textures mapped onto it. It seems to appear that when I tried to load dae file in the screen capture code, its texture somehow do not appear. Could anyone give some advise what I could have done wrong? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=39165#39165 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Collada
Hi, I managed to load the jpg files after changing some paramenters in the CMAKE file. Thanks. Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38907#38907 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Collada
Hi, I managed to get the plugin dae folder to appear in the OSG solution workspace. However, I still have problem loading dae files. Nevertheless, I decide to have a workaround solution by converting the dae file to osg and load the osg file instead. However, I realized that while converting the dae files, it has problem loading jpg files. Could anyone advise how do I get OSG to load jpeg files? I know I would need to downloads stuff from http://gnuwin32.sourceforge.net/packages/jpeg.htm;. However, I am not sure what to download, which folder to put them, and if I need to compile anything and the steps to make it work, etc. Please advise. Any help is deeply appreciated. Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38901#38901 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Collada
Hi, Am I suppose to see the jpeg plugin folder in the OSG solution? If yes, then I must have done something wrong while setting up the solution or downloaded the older third party files. I am using OSG 2.8.3. Could you point me to the third party download you have? Don't we need to compile additional stuff to make OSG be able to load jpeg? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38903#38903 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Collada
Hi, Forgot to indicate that I could not find the jpeg plugin folder in my OSG file. In addition while doing the configuration at CMAKE, I have this msg Could NOT find JPEG (missing: JPEG_LIBRARY JPEG_INCLUDE_DIR). Any advise how to solve this? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38905#38905 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Collada
Hi, I tried following the steps from the link. However, I have difficulty getting rid of the Could NOT find LibXml2 (missing: LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR) msg from CMake. Any advise how to solve this? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38823#38823 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Collada
Hi, I don't think I have the DAE plugin built. Could anyone advise how do I build and include the DAE plugin? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38755#38755 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Collada
Hi, I try loading a dae file using the following line Group* terrain = (osg::Group*) osgDB::readNodeFile(model.dae); But I have an error msg saying Warning: Could not find plugin to read objects from file model.dae. Any advice why? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38728#38728 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Collada
Hi, I am using OSG 2.8.3. Just wonder if I could load a collada file with this version? If so, how do I load them? Or if I need to download additional files? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38697#38697 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Using only geometries from highest LOD
Hi, I need to do screencaptures of a scene from different views. And I need the terrain to be switched to the highest LOD to capture all details. Is there a way to force the terrain (an openflight terrain) to switch to the highest LOD when rendering in OSG? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38542#38542 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Multitexture in Shader
Hi, Has anyone encountered this problem where only the first texture at layer 0 seems to successfully passed to the shader code but not the other textures with textureID of 1, 2, ... ? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=37622#37622 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multitexture in Shader
Hi, I did some testing. The code seems to work properly until I try to put them into the osgsceencapture sample to do sceenshot. It seems that only the first texture is successfully passed to the shader program. Any idea why it does not work? Or is there a way to pass multiple textures into the shader program and still able to work in the osgscreencapture code and to do screenshot? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=37639#37639 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Generating terrain mesh using 3D points
Hi, Has anyone tried generating a terrain mesh using 3D points? Any advice of how to get started? I have some terrain data consisting of 3D points and need to develop functions to query the terrain height during runtime. Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=37533#37533 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Changing background color
Dear All, I am trying to change the background color from dark blue to black in color. Could someone tell me how to do it? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=37161#37161 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Changing vertex color for openflight model
Hi, I tried changing the vertex colors for an openflight model using the following functions: osg::ref_ptrosg::Vec4Array colors = new osg::Vec4Array; int num = vertex-getNumElements(); for (int j = 0; j num; j++) colors-push_back(osg::Vec4(0, 0, 0, 1.0f)); geo-setColorArray(colors.get()); geo-setColorBinding(osg::Geometry::BIND_PER_VERTEX); But it seems to fail. Just wonder if I am have missed out some important lines of codes? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=36158#36158 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Changing vertex color for openflight model
Hi, Thank you for your reply and suggestions. I did what you suggested like using geo-dirtyDisplayList() and stuffs. I think that I did most of it correctly as I realized with more debugging that it works only on certain openflight files. I suspects that some attributes on the some openflight files are preventing me from changing or overriding the vertex colors. Just wonder if anyone has encountered similar problems. Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=36162#36162 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Accessing Vertex attributes of a loaded flt model
Hi, I need to read all the vertex position and normal of a loaded flt model. I tried using InfoVisitor to get all Geode nodes and get information on the vertices but not sure how to do it. Could someone advise how I should go about getting information on the vertex position and normal? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35974#35974 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Shadows in OSG
Hi, How about learning the way OSG structures the shadow code. I found it difficult understanding how OSG manage shadow. Could anyone briefly explain the shadow codes in OSG or is there any way I could learn more on them? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35694#35694 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Shadows in OSG
Hi everyone, I am trying to learn to the detail implementation of shadowing in OSG and maybe to develop my own shadow technique. Could anyone give some advices on where I should get started or if there is any online resources that I could start learning with? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35673#35673 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] StandardShadowMap effect
Hi Wojtek Lewandowski, Thanks for your help. I tried using ShadowMap and the effect is the same. How do I check if my model is using texture coordinates on the same stage as shadow map (1 by default)? I tried using ShadowTexture and the effect is okay. But it seems that of all Shadow effects, only Shadow Texture seems to work on my machine. I am using ATI Mobility Radeon HD 4330. Is that an issue? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35191#35191 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Shadows in large Urban area
Dear all, I am new to OSG and is thinking of implementing shadows in a large urban area with lots of buildings. Could anyone tell me if this is feasible and what shadow tecnique should I used? Or should I try to implement a customized shadow algorithm? Would computation performance be an issue? Any suggestions and advices would be most welcome. Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35195#35195 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] StandardShadowMap effect
Hi Wojtek Lewandowski, I tried using cow.osg and have similar problem. I tried download the driver from AMD website but the latest version they have is 10.12 and it seems to keep crashing after installed. Do you think there is any work around using the ATI card like change the mapping method for the shadow texture? Or should I keep to find another device or simply abandon this machine? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35196#35196 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Shadow implementation
Hi, I have tried using StandardShadowMap. However I am having strange effect as attached in this post. Could anyone give some clue what is wrong? Thank you! Cheers, Linda -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35179#35179 Attachments: http://forum.openscenegraph.org//files/shadow_500.jpg ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] StandardShadowMap effect
Hi, I tried using StandardShadowMap but however, have strange result as attached. Could anyone give some clue as what went wrong? Thank you! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35176#35176 Attachments: http://forum.openscenegraph.org//files/shadow_213.jpg ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
