Re: [osg-users] Question about bump mapping
HI Alexandre, There is no automagic thing to do what you are asking for. Why are you insisting on not adding an osg::Program here? Right now Robert is doing some work on a shader composition like approach, which might do the Program-injection automatically, but for now the preferred way to achieve what you are looking for would be the use of a visitor. The visitor in question would handle the nodes/Statesets with the properties you are describing (having 3 textures bound) and add an appropriate State / osg::Program. As for fixed function bump mapping there are some extensions, but they are really old and de-facto outdated. Shaders are the way to go here. Cheers Sebastian Hi All, I'm not too knowledgeable in the field of shaders and bump map, but lately I've had the task of fixing something related to it in our software. The issue is that some faces in our software are bumpmapped (I see the 3 different texture units used in the .osg file, as well as in the original .flt model), but the node itself does not seem to have an osg::Program (nor osg::VertexProgram or osg::FragmentProgram) part of its stateset's state attributes. The question is this: is it possible that there is a way that a chunk of code of OSG could set up bump mapping on a node by itsefl and NOT add an osg::Program to it? For instance, if it finds more than one texture units in the .osg file, it would find a way to add a shader to enable the bump maping..? I'm really wondering how that node could be bump mapped... Thanks -- Alexandre Vaillancourt ___ 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
Re: [osg-users] Question about bump mapping
Robert, This appears to be exactly the situation. Is there a way to see where this feature is enabled and is there is a way to disable it? Thanks a lot! -- Alexandre Vaillancourt 2015-02-05 13:54 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, It sounds like might be talking about a pre-rendered shadow texture rather than a shadow map. The OSG by default handles multi-texturing by simply blending them - this is part of the OpenGL fixed function pipeline, so it's not a case of enabling shadow map, but simply blending a shadow texture on texture unit 1 with the base texture on texture unit 0. However, I'm just guessing, only you have the data and application in front of you. Robert. On 5 February 2015 at 18:28, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Gentlemen, Thank you for your replies. It turns out that the node is not bumpmapped with a shader (I've used a nodevisitor to check if a program was loaded on a node's stateset and didn't see any). However, the node seems to be having a shadow map. In our model editor (Creator) there is an extended material on the node, and the material has, among other things a surface modifier that has shadow map on texture unit 1. Looking at the exported osg file, I don't see how this texture is used as shadow map (I would assume a shader could need to use it, but we're not adding any shader for now (I'm debugging)). Could it be that upon loading, the plugin for the .osg files assumes that texture unit 1 would be the shadow map and enables it right away or something like that? Thanks for your help! -- Alexandre Vaillancourt 2015-02-05 4:26 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, Does the scene graph code you have inherited contain use of osgFX::BumpMapping? osgFX::BumpingMapping It's a really ancient bit of the OSG so it's really how I'd tackle it these days but it provides the old style osg::VertexProgram and FragmentProgram. Have a look at the OpenSceneGraph/src/osgFX/BumpMapping.cpp so see what it's doing. Robert. On 4 February 2015 at 23:57, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Hi All, I'm not too knowledgeable in the field of shaders and bump map, but lately I've had the task of fixing something related to it in our software. The issue is that some faces in our software are bumpmapped (I see the 3 different texture units used in the .osg file, as well as in the original .flt model), but the node itself does not seem to have an osg::Program (nor osg::VertexProgram or osg::FragmentProgram) part of its stateset's state attributes. The question is this: is it possible that there is a way that a chunk of code of OSG could set up bump mapping on a node by itsefl and NOT add an osg::Program to it? For instance, if it finds more than one texture units in the .osg file, it would find a way to add a shader to enable the bump maping..? I'm really wondering how that node could be bump mapped... Thanks -- Alexandre Vaillancourt ___ 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 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 mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Question about bump mapping
Hi Alexandre, if you want to disable the texture that is bound to unit 1, you have to write a NodeVisitor that will traverse the statesets of the nodes where the texture to unit 1 is set, and simply switch that attribute to StateAttribute::OFF Nick On Thu, Feb 5, 2015 at 8:03 PM, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Robert, This appears to be exactly the situation. Is there a way to see where this feature is enabled and is there is a way to disable it? Thanks a lot! -- Alexandre Vaillancourt 2015-02-05 13:54 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, It sounds like might be talking about a pre-rendered shadow texture rather than a shadow map. The OSG by default handles multi-texturing by simply blending them - this is part of the OpenGL fixed function pipeline, so it's not a case of enabling shadow map, but simply blending a shadow texture on texture unit 1 with the base texture on texture unit 0. However, I'm just guessing, only you have the data and application in front of you. Robert. On 5 February 2015 at 18:28, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Gentlemen, Thank you for your replies. It turns out that the node is not bumpmapped with a shader (I've used a nodevisitor to check if a program was loaded on a node's stateset and didn't see any). However, the node seems to be having a shadow map. In our model editor (Creator) there is an extended material on the node, and the material has, among other things a surface modifier that has shadow map on texture unit 1. Looking at the exported osg file, I don't see how this texture is used as shadow map (I would assume a shader could need to use it, but we're not adding any shader for now (I'm debugging)). Could it be that upon loading, the plugin for the .osg files assumes that texture unit 1 would be the shadow map and enables it right away or something like that? Thanks for your help! -- Alexandre Vaillancourt 2015-02-05 4:26 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, Does the scene graph code you have inherited contain use of osgFX::BumpMapping? osgFX::BumpingMapping It's a really ancient bit of the OSG so it's really how I'd tackle it these days but it provides the old style osg::VertexProgram and FragmentProgram. Have a look at the OpenSceneGraph/src/osgFX/BumpMapping.cpp so see what it's doing. Robert. On 4 February 2015 at 23:57, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Hi All, I'm not too knowledgeable in the field of shaders and bump map, but lately I've had the task of fixing something related to it in our software. The issue is that some faces in our software are bumpmapped (I see the 3 different texture units used in the .osg file, as well as in the original .flt model), but the node itself does not seem to have an osg::Program (nor osg::VertexProgram or osg::FragmentProgram) part of its stateset's state attributes. The question is this: is it possible that there is a way that a chunk of code of OSG could set up bump mapping on a node by itsefl and NOT add an osg::Program to it? For instance, if it finds more than one texture units in the .osg file, it would find a way to add a shader to enable the bump maping..? I'm really wondering how that node could be bump mapped... Thanks -- Alexandre Vaillancourt ___ 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 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 mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- trajce nikolov nick ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Question about bump mapping
Hi Nick, Hi Alexandre, if you want to disable the texture that is bound to unit 1, you have to write a NodeVisitor that will traverse the statesets of the nodes where the texture to unit 1 is set, and simply switch that attribute to StateAttribute::OFF Nick I'm no expert but am I correct to assume that if I disable the texture unit like this, it will not be available to the shaders when I decide to add one to my node? Thanks for the input, it's greatly appreciated! -- Alexandre Vaillancourt On Thu, Feb 5, 2015 at 8:03 PM, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Robert, This appears to be exactly the situation. Is there a way to see where this feature is enabled and is there is a way to disable it? Thanks a lot! -- Alexandre Vaillancourt 2015-02-05 13:54 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, It sounds like might be talking about a pre-rendered shadow texture rather than a shadow map. The OSG by default handles multi-texturing by simply blending them - this is part of the OpenGL fixed function pipeline, so it's not a case of enabling shadow map, but simply blending a shadow texture on texture unit 1 with the base texture on texture unit 0. However, I'm just guessing, only you have the data and application in front of you. Robert. On 5 February 2015 at 18:28, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Gentlemen, Thank you for your replies. It turns out that the node is not bumpmapped with a shader (I've used a nodevisitor to check if a program was loaded on a node's stateset and didn't see any). However, the node seems to be having a shadow map. In our model editor (Creator) there is an extended material on the node, and the material has, among other things a surface modifier that has shadow map on texture unit 1. Looking at the exported osg file, I don't see how this texture is used as shadow map (I would assume a shader could need to use it, but we're not adding any shader for now (I'm debugging)). Could it be that upon loading, the plugin for the .osg files assumes that texture unit 1 would be the shadow map and enables it right away or something like that? Thanks for your help! -- Alexandre Vaillancourt 2015-02-05 4:26 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, Does the scene graph code you have inherited contain use of osgFX::BumpMapping? osgFX::BumpingMapping It's a really ancient bit of the OSG so it's really how I'd tackle it these days but it provides the old style osg::VertexProgram and FragmentProgram. Have a look at the OpenSceneGraph/src/osgFX/BumpMapping.cpp so see what it's doing. Robert. On 4 February 2015 at 23:57, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Hi All, I'm not too knowledgeable in the field of shaders and bump map, but lately I've had the task of fixing something related to it in our software. The issue is that some faces in our software are bumpmapped (I see the 3 different texture units used in the .osg file, as well as in the original .flt model), but the node itself does not seem to have an osg::Program (nor osg::VertexProgram or osg::FragmentProgram) part of its stateset's state attributes. The question is this: is it possible that there is a way that a chunk of code of OSG could set up bump mapping on a node by itsefl and NOT add an osg::Program to it? For instance, if it finds more than one texture units in the .osg file, it would find a way to add a shader to enable the bump maping..? I'm really wondering how that node could be bump mapped... Thanks -- Alexandre Vaillancourt ___ 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 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 mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- trajce nikolov nick ___ 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
Re: [osg-users] Question about bump mapping
You are correct. If you disable the texture for some unit it will not be available for your shaders. I am familiar a bit with Creator and OpenFlight, and with the OpenFlight loader. So you can have multitextures in your nodes, but it is up to the shaders to use them or not, and how to use them. After years I ended up with an xml file per model where I assign which textures goes where based on the shader logic, so it is not anymore depend on the modeller. I have code snippet for bump mapping I can share if you are interested, that suppose to work with any model along the mentioned xml file. Ping me on email if you want Nick On Thu, Feb 5, 2015 at 8:13 PM, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Hi Nick, Hi Alexandre, if you want to disable the texture that is bound to unit 1, you have to write a NodeVisitor that will traverse the statesets of the nodes where the texture to unit 1 is set, and simply switch that attribute to StateAttribute::OFF Nick I'm no expert but am I correct to assume that if I disable the texture unit like this, it will not be available to the shaders when I decide to add one to my node? Thanks for the input, it's greatly appreciated! -- Alexandre Vaillancourt On Thu, Feb 5, 2015 at 8:03 PM, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Robert, This appears to be exactly the situation. Is there a way to see where this feature is enabled and is there is a way to disable it? Thanks a lot! -- Alexandre Vaillancourt 2015-02-05 13:54 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, It sounds like might be talking about a pre-rendered shadow texture rather than a shadow map. The OSG by default handles multi-texturing by simply blending them - this is part of the OpenGL fixed function pipeline, so it's not a case of enabling shadow map, but simply blending a shadow texture on texture unit 1 with the base texture on texture unit 0. However, I'm just guessing, only you have the data and application in front of you. Robert. On 5 February 2015 at 18:28, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Gentlemen, Thank you for your replies. It turns out that the node is not bumpmapped with a shader (I've used a nodevisitor to check if a program was loaded on a node's stateset and didn't see any). However, the node seems to be having a shadow map. In our model editor (Creator) there is an extended material on the node, and the material has, among other things a surface modifier that has shadow map on texture unit 1. Looking at the exported osg file, I don't see how this texture is used as shadow map (I would assume a shader could need to use it, but we're not adding any shader for now (I'm debugging)). Could it be that upon loading, the plugin for the .osg files assumes that texture unit 1 would be the shadow map and enables it right away or something like that? Thanks for your help! -- Alexandre Vaillancourt 2015-02-05 4:26 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, Does the scene graph code you have inherited contain use of osgFX::BumpMapping? osgFX::BumpingMapping It's a really ancient bit of the OSG so it's really how I'd tackle it these days but it provides the old style osg::VertexProgram and FragmentProgram. Have a look at the OpenSceneGraph/src/osgFX/BumpMapping.cpp so see what it's doing. Robert. On 4 February 2015 at 23:57, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Hi All, I'm not too knowledgeable in the field of shaders and bump map, but lately I've had the task of fixing something related to it in our software. The issue is that some faces in our software are bumpmapped (I see the 3 different texture units used in the .osg file, as well as in the original .flt model), but the node itself does not seem to have an osg::Program (nor osg::VertexProgram or osg::FragmentProgram) part of its stateset's state attributes. The question is this: is it possible that there is a way that a chunk of code of OSG could set up bump mapping on a node by itsefl and NOT add an osg::Program to it? For instance, if it finds more than one texture units in the .osg file, it would find a way to add a shader to enable the bump maping..? I'm really wondering how that node could be bump mapped... Thanks -- Alexandre Vaillancourt ___ 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 mailing list osg-users@lists.openscenegraph.org
Re: [osg-users] Question about bump mapping
Hi Alexandre, It sounds like might be talking about a pre-rendered shadow texture rather than a shadow map. The OSG by default handles multi-texturing by simply blending them - this is part of the OpenGL fixed function pipeline, so it's not a case of enabling shadow map, but simply blending a shadow texture on texture unit 1 with the base texture on texture unit 0. However, I'm just guessing, only you have the data and application in front of you. Robert. On 5 February 2015 at 18:28, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Gentlemen, Thank you for your replies. It turns out that the node is not bumpmapped with a shader (I've used a nodevisitor to check if a program was loaded on a node's stateset and didn't see any). However, the node seems to be having a shadow map. In our model editor (Creator) there is an extended material on the node, and the material has, among other things a surface modifier that has shadow map on texture unit 1. Looking at the exported osg file, I don't see how this texture is used as shadow map (I would assume a shader could need to use it, but we're not adding any shader for now (I'm debugging)). Could it be that upon loading, the plugin for the .osg files assumes that texture unit 1 would be the shadow map and enables it right away or something like that? Thanks for your help! -- Alexandre Vaillancourt 2015-02-05 4:26 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, Does the scene graph code you have inherited contain use of osgFX::BumpMapping? osgFX::BumpingMapping It's a really ancient bit of the OSG so it's really how I'd tackle it these days but it provides the old style osg::VertexProgram and FragmentProgram. Have a look at the OpenSceneGraph/src/osgFX/BumpMapping.cpp so see what it's doing. Robert. On 4 February 2015 at 23:57, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Hi All, I'm not too knowledgeable in the field of shaders and bump map, but lately I've had the task of fixing something related to it in our software. The issue is that some faces in our software are bumpmapped (I see the 3 different texture units used in the .osg file, as well as in the original .flt model), but the node itself does not seem to have an osg::Program (nor osg::VertexProgram or osg::FragmentProgram) part of its stateset's state attributes. The question is this: is it possible that there is a way that a chunk of code of OSG could set up bump mapping on a node by itsefl and NOT add an osg::Program to it? For instance, if it finds more than one texture units in the .osg file, it would find a way to add a shader to enable the bump maping..? I'm really wondering how that node could be bump mapped... Thanks -- Alexandre Vaillancourt ___ 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 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
Re: [osg-users] Question about bump mapping
Hi Alexandre, Does the scene graph code you have inherited contain use of osgFX::BumpMapping? osgFX::BumpingMapping It's a really ancient bit of the OSG so it's really how I'd tackle it these days but it provides the old style osg::VertexProgram and FragmentProgram. Have a look at the OpenSceneGraph/src/osgFX/BumpMapping.cpp so see what it's doing. Robert. On 4 February 2015 at 23:57, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Hi All, I'm not too knowledgeable in the field of shaders and bump map, but lately I've had the task of fixing something related to it in our software. The issue is that some faces in our software are bumpmapped (I see the 3 different texture units used in the .osg file, as well as in the original .flt model), but the node itself does not seem to have an osg::Program (nor osg::VertexProgram or osg::FragmentProgram) part of its stateset's state attributes. The question is this: is it possible that there is a way that a chunk of code of OSG could set up bump mapping on a node by itsefl and NOT add an osg::Program to it? For instance, if it finds more than one texture units in the .osg file, it would find a way to add a shader to enable the bump maping..? I'm really wondering how that node could be bump mapped... Thanks -- Alexandre Vaillancourt ___ 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
Re: [osg-users] Question about bump mapping
Gentlemen, Thank you for your replies. It turns out that the node is not bumpmapped with a shader (I've used a nodevisitor to check if a program was loaded on a node's stateset and didn't see any). However, the node seems to be having a shadow map. In our model editor (Creator) there is an extended material on the node, and the material has, among other things a surface modifier that has shadow map on texture unit 1. Looking at the exported osg file, I don't see how this texture is used as shadow map (I would assume a shader could need to use it, but we're not adding any shader for now (I'm debugging)). Could it be that upon loading, the plugin for the .osg files assumes that texture unit 1 would be the shadow map and enables it right away or something like that? Thanks for your help! -- Alexandre Vaillancourt 2015-02-05 4:26 GMT-05:00 Robert Osfield robert.osfi...@gmail.com: Hi Alexandre, Does the scene graph code you have inherited contain use of osgFX::BumpMapping? osgFX::BumpingMapping It's a really ancient bit of the OSG so it's really how I'd tackle it these days but it provides the old style osg::VertexProgram and FragmentProgram. Have a look at the OpenSceneGraph/src/osgFX/BumpMapping.cpp so see what it's doing. Robert. On 4 February 2015 at 23:57, Alexandre Vaillancourt alexandre.vaillancourt.l...@gmail.com wrote: Hi All, I'm not too knowledgeable in the field of shaders and bump map, but lately I've had the task of fixing something related to it in our software. The issue is that some faces in our software are bumpmapped (I see the 3 different texture units used in the .osg file, as well as in the original .flt model), but the node itself does not seem to have an osg::Program (nor osg::VertexProgram or osg::FragmentProgram) part of its stateset's state attributes. The question is this: is it possible that there is a way that a chunk of code of OSG could set up bump mapping on a node by itsefl and NOT add an osg::Program to it? For instance, if it finds more than one texture units in the .osg file, it would find a way to add a shader to enable the bump maping..? I'm really wondering how that node could be bump mapped... Thanks -- Alexandre Vaillancourt ___ 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 mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Question about bump mapping
Hi All, I'm not too knowledgeable in the field of shaders and bump map, but lately I've had the task of fixing something related to it in our software. The issue is that some faces in our software are bumpmapped (I see the 3 different texture units used in the .osg file, as well as in the original .flt model), but the node itself does not seem to have an osg::Program (nor osg::VertexProgram or osg::FragmentProgram) part of its stateset's state attributes. The question is this: is it possible that there is a way that a chunk of code of OSG could set up bump mapping on a node by itsefl and NOT add an osg::Program to it? For instance, if it finds more than one texture units in the .osg file, it would find a way to add a shader to enable the bump maping..? I'm really wondering how that node could be bump mapped... Thanks -- Alexandre Vaillancourt ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
