Re: [osg-users] Geometry vertices and nan/inf

robertosfield wrote: Your code is rather perverse and potentially unsafe way to get at the xyz coords, but if the array is a Vec3Array then it should probably work OK. A better way to look at to coords is to cast the array to a Vec3Array and access the vertices via the std::vector

[osg-users] Geometry vertices and nan/inf

Hello all, I'm analyzing the vertices of a geometry like so: Code: osg::Array *pVertexArray = pGeometry-getVertexArray(); int nVertices = (int)(pVertexArray-getNumElements()); osg::Vec3 *pVertexData = (osg::Vec3 *)(pVertexArray-getDataPointer()); for (int i = 0; i nVertices; i++) { float

[osg-users] Texture Mapping Meeting Point Shadow

Hello all! I'm having trouble with image texture mapping a geode. Specifically, where the top and the bottom of the image meet, there is a dark shadow effect that I want to avoid. I've created the simplest example of how I'm attempting the texture mapping and I've taken screenshots that show

Re: [osg-users] Texture Mapping Meeting Point Shadow

That fixed it, thank you so much! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63713#63713 ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] Geometry of Generic 3D Surface from Collection of Points

. On 17 August 2015 at 02:21, Erik Hensens () wrote: Hi everyone! I have a collection of Vec3 vertices that define the shape of a geometry that I'd like to create. Typically I would create the geometry by adding a primitive set of the POLYGON type, but what should I

Re: [osg-users] Geometry of Generic 3D Surface from Collection of Points

. Thanks again! robertosfield wrote: Hi Erik, On 17 August 2015 at 13:39, Erik Hensens () wrote: So, does that mean that there is no way to do what I want without somehow determining the coordinates of every individual triangle? And there's not even any way to do a 3D tessellation

Re: [osg-users] Geometry of Generic 3D Surface from Collection of Points

, Erik Hensens () wrote: Hi everyone! I have a collection of Vec3 vertices that define the shape of a geometry that I'd like to create. Typically I would create the geometry by adding a primitive set of the POLYGON type, but what should I do if the vertices are not all in the same

Re: [osg-users] Geometry of Generic 3D Surface from Collection of Points

- think of table cloth with a regular grid that you then scrunch up. In particular, what do you mean by 'map the 2D coordinates to their final 3D coordinates'? Sorry and thanks very much for your patience... :-* robertosfield wrote: Hi Erik, On 17 August 2015 at 14:18, Erik Hensens

Re: [osg-users] Vec3Array Deep Copy

.   pCopy = osg::clone(pVertexArray-get()); Robert. On 20 August 2015 at 18:30, Erik Hensens () wrote: Hi everyone! I have a simple question but I just can't figure it out. What is the proper way to copy a Vec3Array? The code below is not right: Code: osg::ref_ptr

[osg-users] Vec3Array Deep Copy

Hi everyone! I have a simple question but I just can't figure it out. What is the proper way to copy a Vec3Array? The code below is not right: Code: osg::ref_ptr osg::Vec3Array pVertexArray = new osg::Vec3Array; ... osg::ref_ptr osg::Vec3Array pCopy = new osg::Vec3Array(pVertexArray,

Re: [osg-users] ClipNode Opposite Behavior

I just wanted to mention that I never got the fragment shader approach to work for what I wanted. I ended up using polygon tessellation to build the geometry out of triangles. Thanks anyway to everyone who attempted to help! -- Read this topic online here:

Re: [osg-users] ClipNode Opposite Behavior

Sorry for the triplicate post, I received an error message on trying to post until I removed the quotes... -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=64458#64458 ___ osg-users mailing list

Re: [osg-users] ClipNode Opposite Behavior

Thank you both for your input! I'm learning a lot. I'm new to fragment shaders, so I think that maybe I'm doing something obviously wrong... It seems that what I'm doing below should be pretty simple, but it doesn't work. When I reverse the if (fDist rad) to if (fDist rad) then the entire

[osg-users] ClipNode Opposite Behavior

Hi everyone! I have a geode that is just a quad rectangular surface and I need to be able to put circular holes in it. To better visualize what I'm talking about, think about a flat slice of Swiss cheese. I just discovered the ClipNode node and I figured I could achieve what I want by adding

Re: [osg-users] Best Way to Make a Toroid Geode

the osggeometry example. Robert. On 22 July 2015 at 15:29, Erik Hensens () wrote: Hello all! I'm no OSG expert by any stretch of the imagination, so maybe this question has a really simple answer. If so, I apologize. What is the best/proper way to construct a geode in the shape

[osg-users] Best Way to Make a Toroid Geode

Hello all! I'm no OSG expert by any stretch of the imagination, so maybe this question has a really simple answer. If so, I apologize. What is the best/proper way to construct a geode in the shape of a toroid? In particular, I'm trying to create a square-toroid, think of a pipe: a cylinder

Re: [osg-users] ClipNode Opposite Behavior

again! cbuchner1 wrote: I believe your fragment shader is not setting the output fragment color at all, which is a minimum requirement for a fragment shader to work. Christian 2015-07-23 23:59 GMT+02:00 Erik Hensens (): Sorry for the triplicate post, I received an error message

[osg-users] Getting all Matrix Values

Hi, How can I get all 16 values of a Matrixd? I see you can construct a Matrixd from its values but I don't see how to get them. Specifically, I'm wishing to format a text string that can represent a Matrixd so that it can be recreated later from reading and analyzing the text. Thank you very

Re: [osg-users] Getting all Matrix Values

Never mind, I see it. I must have been asleep when I read the documentation. Sorry! ehensens wrote: > Hi, > > How can I get all 16 values of a Matrixd? I see you can construct a Matrixd > from its values but I don't see how to get them. > > Specifically, I'm wishing to format a text string

Re: [osg-users] How to Convert Lookat to Projection and View Matrices

. Is that possible? I hope that all makes sense... SMesserschmidt wrote: > Am 22.09.2015 um 16:08 schrieb Erik Hensens: > > > Thank you for the reply Glenn! > > > > You say that the projection matrix doesn't depend on the lookat parameters; > > what does it de

[osg-users] How to Convert Lookat to Projection and View Matrices

Hi everyone! How can I compute the view matrix and the projection matrix from a set of lookat parameters (eye, center, and up)? I'm asking because I need to compute the MVPW for a given lookat before the camera is actually at that lookat. I'm totally stumped and any help would be greatly

Re: [osg-users] How to Convert Lookat to Projection and View Matrices

ith the projection matrix though; that doesn't depend > on your look vector. > > Glenn Waldron > > > > > On Tue, Sep 22, 2015 at 9:24 AM, Erik Hensens < ()> wrote: > > > Hi everyone! > > > > How can I compute the view matrix and the projec

Re: [osg-users] Glowing Sphere Effect

Hi Sebastian, Thank you for your reply. As far as what type of glowing effect I'm after, I want something similar to the following: http://i.stack.imgur.com/54Z2C.png That is, I want a shiny glowing light to emit beyond the boundaries of the sphere. As far as your comment about normals, I

[osg-users] Glowing Sphere Effect

Hello everyone! I'm generating a sphere geode and I'd like to add a glowing effect in any variable color. I've only found one other similar topic on these forums but there was no answer. I imagine this must be possible, I just don't know how to do it. I've posted my code that creates the

Re: [osg-users] Viewing Stacked Semi-Transparent Geodes

s. > > > On Wed, Feb 3, 2016 at 9:48 PM, Erik Hensens < ()> wrote: > > > Hi everybody! > > > > I have two geodes, each is a flat circular disk with some circular holes > > removed. Each geode is flat in the YZ plane, and they are stacked against &g

Re: [osg-users] Viewing Stacked Semi-Transparent Geodes

gt; like in stateSet->setRenderingHint(StateSet::TRANSPARENT_BIN); > > Regards, Laurens. > > > > > > On Wed, Feb 3, 2016 at 9:48 PM, Erik Hensens < ()> wrote: > > > > > > > > > Hi everybody! > > > > > > I have

[osg-users] Viewing Stacked Semi-Transparent Geodes

Hi everybody! I have two geodes, each is a flat circular disk with some circular holes removed. Each geode is flat in the YZ plane, and they are stacked against each other with a small amount of spacing, centered at (x1, 0, 0) and (x2, 0, 0). There is a single parent matrix transform node that

[osg-users] Best Applications for Model Editing with .ive File Format

Hello everyone! Let me apologize in advance if this is a duplicate question. I tried hard to find the answer elsewhere in the forums but I didn't see anything. If I missed it, please just point me toward the original post. What are the best options for 3D modeling applications that can

Re: [osg-users] Trouble Drawing Text in Arabic

ehensens wrote: > > Jan Ciger wrote: > > On Wed, Nov 2, 2016 at 3:35 PM, Chris Hanson < ()> wrote: > > > > > Is this something osgCairo ( https://github.com/cubicool/osgcairo > > > (https://github.com/cubicool/osgcairo) ) might solve for you?​ > > > > > > > > > > > > > Love that TODO in

[osg-users] Trouble Drawing Text in Arabic

Hello! I am having some trouble drawing text correctly in Arabic. I can get the Arabic letters themselves to show up correctly, but the letters do not connect together as they should. I am not an Arabic speaker, but my understanding is that when letters in Arabic are adjacent to each other

Re: [osg-users] Trouble Drawing Text in Arabic

Jan Ciger wrote: > On Wed, Nov 2, 2016 at 3:35 PM, Chris Hanson < ()> wrote: > > > Is this something osgCairo ( https://github.com/cubicool/osgcairo > > (https://github.com/cubicool/osgcairo) ) might solve for you?​ > > > > > > > Love that TODO in the README! > > > However, be aware that

[osg-users] Trackball Manipulation Broken?

Hi everyone! My app allows manipulating the scene via the osgGA::TrackballManipulator. Without changing any of the app code, we upgraded from OSG 3.2.0.99 to 3.2.1.100 and now the trackball manipulation doesn't work. I don't know how to check whether or not this is a known bug so I figured I'd

Re: [osg-users] Trackball Manipulation Broken?

ch. > > Robert. > > On 8 May 2018 at 22:44, Erik Hensens <> wrote: > > > Hi everyone! > > > > My app allows manipulating the scene via the osgGA::TrackballManipulator. > > Without changing any of the app code, we upgraded from OSG 3.2.0.99 to > >

[osg-users] Geometry Shininess and Color Array

Hello! I have a Geometry on whose state set I used to set a material that I made shiny via osg::Material::setShininess(). The problem is that now I have the need to set various colors across the geometry. I tried doing this with the geometry's color array, but that approach didn't work unless

Re: [osg-users] Geometry Shininess and Color Array

Thank you AnyOldName3! Calling pMaterial->setColorMode(osg::Material::AMBIENT_AND_DIFFUSE) allowed me to use a color array on my geometry and set the shininess as well, just like I wanted to. I really appreciate your help! Thank you, Erik -- Read this topic online here: