[osg-users] kdTree and sphere intersection
Hi, I have create a sphereintersector which works fine, but goes through all triangles on the geometry. I would like to use the kdTree to help me to do a sphere - triangle intersection tests on as few triangles as possible. Is this possible? When I look at the kdTree object it looks like it is hardcoded to handle only line segments? anyone have some comments on this? Thank you! Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=43908#43908 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] RenderBin-question/problem
Hi Stephan, You created a nested renderbin, and because of its non negative bin number it will draw after the contents of the first bin. Both are DepthSortedBin with binNumber 10. Regards, Laurens. On 11/14/2011 5:56 PM, Stephan Maximilian Huber wrote: Hi I am having problems with renderbins, this is maybe a bug in osg or I have problems to understand the concepts behind renderbins. Here's a simplified test: root + PAT 1 + geode + geo + PAT 2 + geode + geo + PAT 3 + geode + geo the root-group has a stateset with TRANSPARENT_BIN, PAT 1 is positioned at (0/0/0) and has a geode containing a geometry with a red quad (see links) and another PAT 2 holding some linestrip geometry. PAT 3 contains a geode with a green geometry, positioned at 100/100/100. The camera projection matrix is basically a hud. When PAT 2 has a stateset with -setRenderingHint(osg::StateAttribute::TRANSPARENT_BIN) then the depth-sorting is wrong (see bad.osg), if I remove the setRenderingHint-call, everything is correct (good.osg). So what's wrong with my setup? basically all drawables should end in render-bin 10, regardless of additional setRenderingHint-calls by enclosed childs, shouldn't they? AFAIK this worked in previous versions of osg. Attached you'll find two osg-models showing the problem and the corresponding screenshots: good: http://scrups.cefix.org//8k/ikhqjtvumlwco.png bad : http://scrups.cefix.org//8r/nozjb4u5y8owc.png This is with a recent checkout of osg-trunk (3.1.0) cheers, Stephan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgText and GLES2
Hi All
I've been using osgText on GLES1 with some good results, I'm now moving to
gles2 and am having some issues. I've attached a basic shader to get things
started which looks like the following
uniform sampler2D diffuseTexture;\n
varying mediump vec2 texCoord0;\n
void main(void) {\n
gl_FragColor = texture2D(diffuseTexture, texCoord0).;\n
}\n
This has worked in the past on windows and i've seen it mentioned in this
post
http://forum.openscenegraph.org/viewtopic.php?t=5340
However on GLES 2 I'm getting just solid white quads at the location of
each texture quad. I've found this in my log output
Created new 0x8e5e410 TextureObject, _numOfTextureObjects 1
glGetString(GL_RENDERER)==PowerVR SGX 535
before Glyph::subload(): detected OpenGL error: invalid enumerant
after Glyph::subload() : detected OpenGL error: invalid enumerant
glTexSubImage2D(0xde1 ,0
1 ,1
18 ,22
0x1906
0x1401
0x8e21fa0);
Glyph::subload(): texture sub-image width and/or height of 0, ignoring
operation.
Glyph::subload(): texture sub-image width and/or height of 0, ignoring
operation.
The width and height look to be 18 and 22 to me, does anyone know what the
issue might be.
Cheers
Tom
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Re: [osg-users] osgViewer::GraphicsWindowEmbeded causing OpenGL error
Robert, it seems to work ok now. The view on each of the cave walls is good and I'm even getting stereo now. I'm still getting an OpenGL error but I can't see what problems it is causing; lighting, textures, perspective, placement, and all the rest look good. The older code I am using as an example uses glGetFloatv to get the perspective and view matrixes. Well, in my code, glGetFloatv is returning an identity matrix for the projection matrix (which is probably part of the OpenGL error reported). Since I saw what looked like the inside of the example .ive I've been using I didn't think that the perspective was off. Using the CAVElib matrixes fixes the view problem. Anyhow, thanks for your help again. Josh -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=43911#43911 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osg plugins
We're just moving from 2.8.something to 3.0.1. Looks like I should update from using .osg to .osgx. While I was looking at that, I was wondering about this line from DogOSGWrapper.cpp: if (osgDB::Registry::instance()-loadLibrary(*itr)==osgDB::Registry::LOADED) return writeObject(obj,fw); It looked to me that loadLibrary() was returning PREVIOUSLY_LOADED. Should the condition be != osgDB::Registry::NOT_LOADED? I'm not familiar with this code, but that seemed odd to me. thanks andy ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Development of Qt support as part of osgViewer
What about stellarium which base on OpenGL and qt? Please visit: http://www.stellarium.org I wish some day I can develop some application like it base on osg and qt. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=43913#43913 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Performance results? Intel (icc) or GNU gcc?
Hi folks, This is a general question for those who have tried out the Intel compiler. For those who have, I'm wondering what your experience has been with performance. Did you see an increase in the performance of OSG on your system when compiled with the Intel compiler? If so, can you quantify it? Thanks! -B --- Brad Colbert Renaissance Sciences Corporation (480) 374-5073 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Performance results? Intel (icc) or GNU gcc?
On 11/16/2011 9:09 AM, Brad Colbert wrote: This is a general question for those who have tried out the Intel compiler. For those who have, I'm wondering what your experience has been with performance. Did you see an increase in the performance of OSG on your system when compiled with the Intel compiler? If so, can you quantify it? I'm curious too, because a couple years ago a dev team I know dropped the Intel compiler because it was generating slower code than MSVC++. -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Digital Imaging. OpenGL. Scene Graphs. GIS. GPS. Training. Consulting. Contracting. There is no Truth. There is only Perception. To Perceive is to Exist. - Xen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] ShapeDrawable problem
Hi, I change my application to do not use shapeDrawables anymore and it worked perfectly! Now I'm using osg::geometry and it is fine. Thank you, Robert. Cheers, Klaus -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=43917#43917 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] ShapeDrawable problem
Hi, I change my application to do not use shapeDrawables anymore and it worked perfectly! Now I'm using osg::geometry and it is fine. Thank you, Robert. Cheers, Klaus -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=43918#43918 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
