Re: [osg-users] Vertex attribute aliasing - problem in shader modifying code?

Robert, Thanks for the speedy reply and commit. I've just rebuilt and my application acts properly now :). Thanks, Kuba -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=59723#59723 ___ osg-users mail

[osg-users] F/OSS PRC (PDF-3D) exporter for OSG

https://github.com/XenonofArcticus/libPRC We just completed a project for a client who wishes to remain anonymous, devising an OSG exporter plugin that uses the PRC intermediate file format to embed 3D models into PDF files. PRC is superior to the previous 3D-in-PDF format, U3D in that it is more

[osg-users] Re?? a bug with clipnode?

hi,robert: I think I can use shader to achieve my goal:clipping child nodes without these limitations.Am i right?-- Original -- From: "Robert Osfield" Date: Thu, Jun 12, 2014 10:44 PM To: "OpenSceneGraph Users"; Subject: Re: [osg-users] a bug with clipnode? HI

Re: [osg-users] Zoom in viewer. We have a limit when zooming in the scene

Hi! I've playing a bit with the camera and viewer classes but I wasn't able to fix this. However, I tried the QT Reader viewer with a LAS file and found something interesting. When zooming with the mouse wheel, I think the camera is updating its position getting closer to the cloud, not just

Re: [osg-users] Vertex attribute aliasing - problem in shader modifying code?

Hi Kuba, I have just reviewed the code and I you are correct, adding if (_useVertexAttributeAlias) would be appropriate. I've added this and also added an if (_useModelViewAndProjectionUniforms) for the appropriate block. I've checked this fix into svn/trunk and OSG-3.2 branch. Could you try it

Re: [osg-users] a bug with clipnode?

HI Wu, ClipNode has limitations because it controls position state - OpenGL state that has to be applied with a specific modelview matrix that gets encoded when that attribute is applied. This means that you can't just apply positional state at any time as it's value would be affected by renderin

[osg-users] Vertex attribute aliasing - problem in shader modifying code?

Hi, While working with a pretty basic osg-based app I noticed that shader code modification related vertex attribute aliasing (e.g. renaming from gl_Normal to osg_Normal and then treating it as a generic vertex attribute) is active if State::setUseModelViewAndProjectionUniforms(true) is called

Re: [osg-users] a bug with clipnode?

By the way, the right_upper cow shows using the above code while the left_bottom cow shows if I swap the following lines: rootnode->addChild(mt1); rootnode->addChild(mt2); It seems strange. -- Failure is the mother of success. Wu Zhicheng --

[osg-users] a bug with clipnode?

Hi, everyone: In my opinion, the clip effect of a clipnode only affects its child nodes, and a new clipnode only uses its own clipplanes. But the fact seems different from this. In the following project, a clipnode with a cow is added to two parents, but only one cow is shown. How can I get

Re: [osg-users] Disable light in shaders?

HI Jamie, When using shaders it's the shader itself that controls the lighting so the standard OpenGL lighting modes won't affect it. If you want to toggle lighting in shaders you'll need to assign a different shader or use a uniform that controls whether lighting is applied or not. Robert. On

[osg-users] Disable light in shaders?

Hi, I want to disable specific lights with OSG, and it affects models with shaders. How can I do it? What I have now, it is not working. I apply shaders with: osg::StateSet* stateset = new osg::StateSet; [...load shader...] stateset->setAttributeAndModes(programObject, osg::StateAttribute::ON

[osg-users] Zoom in viewer. We have a limit when zooming in the scene

NOTE: Yesterday I posted this question with some images attached. Since the post size was bigger than the allowed, I received a mail that stated the post was awaiting approval and that I could either wait for it or cancel the post. I decided to cancel it and, instead of attaching the images, upl