[osg-users] [osgPPU] Render lower Resolution with unitOut than wandow / fullscreen
Hi, I would like to render my scene in a lower resolution than the viewport resolution, but want it stretched afterwards. When I scale the texture(s) that are attached to to the camera, e.g. half res, the render output is only half the size ( in x and y ) and placed in the lower left corner, and not stretched over the viewport. Think that with this method: unitOut - setInputTextureIndexForViewportReference( inputindex ) one can tell ppu which unit/texture is the reference scale for the output, but in my pipleine there is no viewport sized texture. Is there another way to tell unitOut to scale its resulting texture to viewport size ? Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=40134#40134 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Looking at OSGExp and maya2osg (3dsmax and Maya export plugins)
Hi J-S, jumping in to say hello, and sorry that I coudn't answer your post earlier. I'm student, and as Javier mentioned my time is very limitted these days and for the next two months. At Holiday time I contribute frequently, and I think this won't cahnge too soon. So for now this is it, I'll join discussions about topics regarding Animation/Character Export and the current Polygon Export. Cheers, PP -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=39128#39128 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Looking at OSGExp and maya2osg (3dsmax and Maya export plugins)
Hi, about the crash, I tried the file and it crashes on my system as well in release mode. The polygon Export creates a Log nemad Maya2OSG_Write.log, stored in the same directory of exported file. This might help a little. It exports the mesh as geometry, but than creashes. I guss in Shading stage, hope this helps a little, but can't dive deeper. Thank you! Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=39130#39130 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [build] Build Issues Trunk 2.9.12 and GL3
Hi,
there are Build Issues with the current Trunk and the GL3 Option
osgText does not build due to glPushAttrib / glPopAttrib in
Text::renderWithDelayedDepthWrites.
osgSim OverlayNode Serializer uses Deprecated glTexEnv GL_DECAL Enum.
Fix for Text::renderWithDelayedDepthWrites:
void Text::renderWithDelayedDepthWrites(osg::State state, const osg::Vec4
colorMultiplier) const
{
#if !defined(OSG_GLES1_AVAILABLE) !defined(OSG_GLES2_AVAILABLE)
!defined(OSG_GL3_AVAILABLE)
glPushAttrib( _enableDepthWrites ? (GL_COLOR_BUFFER_BIT |
GL_DEPTH_BUFFER_BIT) : GL_DEPTH_BUFFER_BIT);
// Render to color buffer without writing to depth buffer.
glDepthMask(GL_FALSE);
drawTextWithBackdrop(state,colorMultiplier);
// Render to depth buffer if depth writes requested.
if( _enableDepthWrites )
{
glDepthMask(GL_TRUE);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
drawTextWithBackdrop(state,colorMultiplier);
}
glPopAttrib();
#else
OSG_NOTICE Warning: Text::renderWithDelayedDepthWrites(..) not
implemented. std::endl ;
#endif
}
Fix for osgSim::OverlayNode Serializer ( not sure if this one is sufficient,
but works )
#include osgSim/OverlayNode
#include osgDB/ObjectWrapper
#include osgDB/InputStream
#include osgDB/OutputStream
REGISTER_OBJECT_WRAPPER( osgSim_OverlayNode,
new osgSim::OverlayNode,
osgSim::OverlayNode,
osg::Object osg::Node osg::Group osgSim::OverlayNode
)
{
BEGIN_ENUM_SERIALIZER( OverlayTechnique,
OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY );
ADD_ENUM_VALUE( OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY );
ADD_ENUM_VALUE( VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY );
ADD_ENUM_VALUE( VIEW_DEPENDENT_WITH_PERSPECTIVE_OVERLAY );
END_ENUM_SERIALIZER(); // _overlayTechnique
ADD_OBJECT_SERIALIZER( OverlaySubgraph, osg::Node, NULL ); //
_overlaySubgraph
#if !defined(OSG_GLES1_AVAILABLE) !defined(OSG_GLES2_AVAILABLE)
!defined(OSG_GL3_AVAILABLE)
ADD_GLENUM_SERIALIZER( TexEnvMode, GLenum, GL_DECAL ); // _texEnvMode
#endif
ADD_UINT_SERIALIZER( OverlayTextureUnit, 1 ); // _textureUnit
ADD_UINT_SERIALIZER( OverlayTextureSizeHint, 1024 ); // _textureSizeHint
ADD_VEC4_SERIALIZER( OverlayClearColor, osg::Vec4() ); //
_overlayClearColor
ADD_BOOL_SERIALIZER( ContinuousUpdate, false ); // _continuousUpdate
ADD_DOUBLE_SERIALIZER( OverlayBaseHeight, -100.0 ); // _overlayBaseHeight
}
Moreover, think it would be a good Idea to add an Option to CMakeLists whether
to build osgQT, as QT includes GL.h. No fix for that :-)
For completeness, this Thread explains how to build OSG with GL3 option on
Windows ( tweak of osg/GL , tweak of CMakeLists.txt ) :
http://forum.openscenegraph.org/viewtopic.php?t=7322
Cheers,
ParticlePeter
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Re: [osg-users] [build] Build Issues Trunk 2.9.12 and GL3
Hi, hm ... current Trunk Version is 2.9.9 after it was 2.9.11 already ??? My mistake with the topic ... ? Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38168#38168 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osg::Geometry and GL_PRIMITVE_RESTART
Hi, I found this sceniX forum post http://developer.nvidia.com/forums/index.php?showtopic=5357pid=16495mode=threadedstart= and wonder if this is akin to the osg approach. If so, how can osg be extended in the right way so that currently not supported GL3 features are accessible ? Thank you! Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38097#38097 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osg::Geometry and GL_PRIMITVE_RESTART
Thank you very much, that helps a lot in understanding. So I assume there is no example for this one ... Anyway, many thanks. Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=38121#38121 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osg::Geometry and GL_PRIMITVE_RESTART
Hi, Topics like GL Funktions in osg have been discussed in other posts, but still not getting the essence. I wonder which steps are required to make e.g. GL_PRIMITIVE_RESTART work within osg ? Could you point me to an example, more elaborated than osgTeapot ? Thank you! Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=37945#37945 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Error: 0xc0150002 Win7 x64, VS2010, osg 2.9.11 current Trunk, wrong dependency in osgDBd.dll Manifest ?
Hi, this is an information and sollution hack about a strange issue with the Debug build from source of SVN Trunk 2.9.11 throwing the error code 0xc0150002 I confirmed this on two different Win7 x64 machines, any Debug example and my osg apps linked to Debug libs throw this error. Traced it down through Dependency Walker and sxsTrace to osgDBd.dll, telling me that the side-by-side configuration is incorrect. I also build the 2.8.3 stable from source on the same systems, the error is not present there and all Debug apps are running. So I compared the Manifests of both dlls ( replace _ with Space, ( with less than, ) with greater than ): osgDBd.dll 2.8.3 Manifest: (?xml_version=1.0_encoding=UTF-8_standalone=yes?) (assembly_xmlns=urn:schemas-microsoft-com:asm.v1_manifestVersion=1.0) __(trustInfo_xmlns=urn:schemas-microsoft-com:asm.v3) (security) __(requestedPrivileges) (requestedExecutionLevel_level=asInvoker_uiAccess=false)(/requestedExecutionLevel) __(/requestedPrivileges) (/security) __(/trustInfo) (/assembly) osgDBd.dll 2.9.11 Manifest: (?xml_version=1.0_encoding=UTF-8_standalone=yes?) (assembly_xmlns=urn:schemas-microsoft-com:asm.v1_manifestVersion=1.0) __(trustInfo_xmlns=urn:schemas-microsoft-com:asm.v3) (security) __(requestedPrivileges) (requestedExecutionLevel_level=asInvoker_uiAccess=false)(/requestedExecutionLevel) __(/requestedPrivileges) (/security) __(/trustInfo) __(dependency) (dependentAssembly) __(assemblyIdentity_type=win32_name=Microsoft.VC90.DebugCRT_version=9.0.21022.8_processorArchitecture=amd64_publicKeyToken=1fc8b3b9a1e18e3b)(/assemblyIdentity) (/dependentAssembly) __(/dependency) (/assembly) Notice that the 2.8.3 dll has no dependencies defined, the 2.9.11 has and this results in my problem. Does anybody know what the issue is, and how to fix it the right way ? My Hack to fix it: I removed the dependency entry from the 2.9.11 dll manifest and it works. Detailed steps for those who are facing the same issue: Backup osgDBd.dll drag and drop osgDBd.dll on Visual Studio Open RT_MANIFEST in the Document View DoubleClick the entry bellow ( my version: 2 [English (United States)] ) Copy the Hex content of the newly oppened document RCDATA into a Text editor that can read Hex Data Remove lines ( including ) dependency to /dependency Copy and paste back to RCDATA Save Done, all Debug apps working again. Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=36582#36582 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgAnimation deform TangentSpace ( osgUtil::TangentSpaceGenerator ) for BumpMapping
Hi, I have a Normal Map for an animated Character. To my understanding, I need to transfrom the Tangent and BiNormal which I got from osgUtil::TangentSpaceGenerator with the osgAnimation::RigTransform( Implementation ), otherwise Bump Mapping will not look correct. The RigTransform computeNormal method should do the job. Is there a way to access RigTransfrom in RigGeometry and transform the additional VertexAttributes per update cycle ? Any other Ideas how I could properly calculate the TangentSpace ? Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34960#34960 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Curves/splines
pamakela wrote: Hi I'd like to use curves, particularly simple 2d control point based splines to drive variables of scene graph objects over time. I'd also like to use both linear and cubic interpolated curves. So for example the curve could be sharp sawtooth, a cubic curve with smooth knee/shoulder, etc. A smooth curve could be used to control the fade-in or fade-out of a text object for example. Is there a (fast) library for doing this? Or is there another approach for doing this? Paavo Yes, osgAnimation. Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34888#34888 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPPU] Usage of osg::Uniform::Callback with osgPPU::ShaderAttribute ?
Hi, well, this code is properly updating my Uniform: osg::Uniform * uniform = new osg::Uniform( Vector , osg::Vec4f( 0.0f , 0.0f , 0.0f , 0.0f ) ) ; uniform - setUpdateCallback( new UniformCallback ) ; stateSet - addUniform( uniform ) ; So the update call back does reach the Uniform. My guess is, that you cannot attach the UniformUpdateCallback to an osgPPU::ShaderAttribute, as this one is derived from osg::Programm, but the UniformUpdateCallback is meant to be attached to an osg::Uniform. Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34677#34677 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Please test svn/trunk in prep for 2.9.10 dev release
Hi, Issues with osgWidget My System: Widows 7 x64, VS2010 Building for x64 osgWidget couldn't build ( Input.cpp ) due to: 'inserter' : is not a member of 'std' fixed that with #include iterator Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34590#34590 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Please test svn/trunk in prep for 2.9.10 dev release
Hi Robert, I don't think that this is a valid fix, just mentioned what worked for me and my system. File attached. Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34593#34593 Attachments: http://forum.openscenegraph.org//files/input_582.cpp ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgAnimation : feeding MorphGeometry into RigGeometry
Thanks for your help, this will do for now. However, I would be very interested that this functionality becomes part of osgAnimation, as I am writing on a maya osg exporter. I'll try to look deeper into osgAnimation functionality. The opossite case, morphing two RigGeometries with different Skelettons, is also very usefull. So just for my understanding, a MorphCallback gets attached to a Geode which holds MorphGeometry. Which function searches the Drawables, to link them with the MorphCallback ? Could it be extend it, so that it would also look inside children of RigGeometry ? Got your point with the MorphChannelNames. Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34558#34558 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgAnimation : feeding MorphGeometry into RigGeometry
Hi, I'm feeding a MorphGeometry into RigGeometry, to achieve Character Animation with Facial Morphing. The system works, but it is unclear where to attach the osgAnimation::UpdateMorph. Two cases ( Source Attached ) : 1.) Animation for UpdateMorph does not work GroupRoot ( with BasicAnimtionManager and an animation ) --Skeleton Geode ( with UpdateMorph ) --RigGeometry MorphGeometry ( Morph Base ) --Geometry ( Morph Target ) 2.) Animation Works, but skinned and unskinned ( both morphing ) is Visible GroupRoot ( with BasicAnimtionManager and an animation ) --Skeleton GeodeRig --RigGeometry MorphGeometry ( Instanced bellow ) --GeodeMorph ( with UpdateMorph ) MorphGeometry ( Morph Base ) --Geometry ( Morph Target ) I cannot turn off the NodeMask for the GeodeMorph, as then the UpdateMorph does not calculate. So how can I attach the UpdateMorph so that the skin gets morphed ( before Bone Influence ) and only one geometry been visible ? Btw, Cedric, should a FloatLinearChannel not be rather named morph than 0 ? Moreover, I'm writing out the file, there are issues in reading it back with the osganimationviewer. I'm using SVN Version 2.9.10 Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34536#34536 Attachments: http://forum.openscenegraph.org//files/osgmorphskin_102.zip ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Blur effect on a dynamic scene
Hi, Kim is right, check out osgPPU, its straigth forward to use, and there is an example doing exactly what you want, bluring on key press. Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34540#34540 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] How to properly use the OSG_GL3_AVAILABLE CMake option?
Hi, I am having exactly the same issues, please could you post your suggestion how to fix this ? Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34103#34103 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] How to avoid / minimize overdraw of osg::PrimitiveSet::POINTS
Hi, this is rather a technique question then related to an osg feature. I create a VBO from lot of Points ( ( 50-100 ) ^ 3 ) in the shape of a cube. I create them with three nested loops, one per Axis, so that first I get a line of Points in x-Direction, then draw the next lines to shape the xy plane, and finally draw the volume in z direction with the next xy point planes.Rotating arround this cube with the camera, my Frame Rate drops significantly, when the Points get drawn from Back to front due to Overdraw. I can't just flip the whole entity in 90 degree steps dependent on the camera position as the Points have different Vertex Colors set, so one would nottice the flipping. How can I build an efficient structure so that those points get always drawn from Front to Back ? Are there any helpful utilities for sorting, or maybe other Tricks ? Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34040#34040 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to avoid / minimize overdraw of osg::PrimitiveSet::POINTS
Hi, do you assume, that I have only six Planes of Points, one per Cube side ? That's not the case, its a filled Volume with points. Or do you suggest to built 6 Pyramids of points one per Cube side ? Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34045#34045 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [osgPPU] Usage of osg::Uniform::Callback with osgPPU::ShaderAttribute ?
Hi, I have an osg::Uniform::Callback which is working fine with osg::Programm, but I don't get it working with osg::ShaderAttribute. The Uniform Value used in Constructor is correctly passed to my Shader, but the Values don't get update, as if the UpdateVisitor would not reach the Uniform. osgPPU::ShaderAttribute * shaderAttribute = new osgPPU::ShaderAttribute() ; osg::Uniform * uniform = new osg::Uniform( Color , osg::Vec4f( 1.0f , 0.0f , 0.0f , 1.0f ) ) ; uniform - setUpdateCallback( new UniformCallback ) ; shaderAttribute - add( uniform ) ; UniformCallback is derived from osg::Uniform::Callback While this code is working ( at another place ) osg::Uniform * uniform = new osg::Uniform( Vector , osg::Vec4f( 0.0f , 0.0f , 0.0f , 0.0f ) ) ; uniform - setUpdateCallback( new UniformCallback ) ; stateSet - addUniform( uniform ) ; What do I miss ? Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34008#34008 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multitexture Issue in GLSL Fragment Shader
Hi, yes, it should use texture 0, but how do I specify this ? The 1 in this code line : stateSet - addUniform( new osg::Uniform( osg::Uniform::SAMPLER_2D , stTexture , 1 ) ) ; does not choos a texture, but sets the number of elemets in the uniform ( one sampler2D ). The texture unit association happens ( to my understanding ) with this : stateSet - setTextureAttributeAndModes( 1 , projectionTexture , osg::StateAttribute::ON ) ; But I can't do this for texture 0 ( stTexture ) as it is defined inside the .osg file. So basically the question is, how to assotiate a sampler2D uniform with a certain texture Unit ( from an .osg file ) ? Thank you! Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=32941#32941 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multitexture Issue in GLSL Fragment Shader
Figured it out finally. Need to use : stateSet - addUniform( new osg::Uniform( stTexture , 0 ) ) ; stateSet - setTextureAttributeAndModes( 1 , projTexture , osg::StateAttribute::ON ) ; stateSet - addUniform( new osg::Uniform( projectionTexture , 1 ) ) ; Instead of : stateSet - addUniform( new osg::Uniform( osg::Uniform::SAMPLER_2D , stTexture , 1 ) ) ; stateSet - setTextureAttributeAndModes( 1 , projTexture , osg::StateAttribute::ON ) ; stateSet - addUniform( new osg::Uniform( osg::Uniform::SAMPLER_2D , projectionTexture , 1 ) ) ; Thank you! Cheers, searching for the Pivot of my Soul, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=32944#32944 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multitexture Issue in GLSL Fragment Shader
Hi, that was classic, thx Fredric :-) Thank you! Cheers, searching for the Pivot of my Soul, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=32945#32945 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Multitexture Issue in GLSL Fragment Shader
Hi,
Am following osgstereomatch example, but can't find my mistake.
Trying to use two Textures in a Fragment Shader, with one set of geometry
texCoordArray and one with Screen Projected Coordinates.
I include an .osg file in my programm which has properly textured geometry. The
.osg file has following lines :
Geometry {
DataVariance STATIC
StateSet {
rendering_hint DEFAULT_BIN
renderBinMode INHERIT
textureUnit 0 {
GL_TEXTURE_2D ON
Texture2D {
name ...
file ...
...
}
TexEnv {
mode REPLACE
}
Its bound to texture Unit 0 to a StateSet attached to my Geometry. When render
just this file, everything is as expected ( the geometry has ST Coords ).
Now I tweak the rendering, I want to project ( camera projection ) another
texture ontop of this loaded and textured file.
The SG Structer inside this .osg file is simply :
Group - Geode - Geometry
So first I generate a StateSet for my Group Node and just add a sampler 2D
Uniform, so that the original fileTexture ( should be ) is available in my
Shader :
stateSet - addUniform( new osg::Uniform( osg::Uniform::SAMPLER_2D ,
stTexture , 1 ) ) ;
Then I add the projectionTexture to my StateSet into Texture Unit 1 and add the
corresponding Uniform :
stateSet - setTextureAttributeAndModes( 1 , projTexture ,
osg::StateAttribute::ON ) ;
stateSet - addUniform( new osg::Uniform( osg::Uniform::SAMPLER_2D ,
projectionTexture , 1 ) ) ;
In my GLSL Fragment Program I Define :
in vec2texCoord ;
// Interpolated gl_MultiTexCoord0.st
const vec2screenRes = ... ; // Screen
Resolution
uniform sampler2D stTexture ;
uniform sampler2D projectionTexture ;
and in Main Function :
vec4 color1 = texture2D( stTexture , texCoord ) ;
vec4 color2 = texture2D( projectionTexture , gl_FragCoord.st /
screenRes ) ;// Projet based on Fragment Coordinate
gl_FragColor = mix( color1 , color2 , mixValue ) ;
The result is, that stTexture gets also projected onto the Geometry, not using
the geometry texCoordArray, but the Fragment Coordinates.
Also the mixValue doesn't work as expected. Looks like both the Textures are
Projected and mixed uniformly with same weigth.
What am I missing, or doing wromg ?
I feel that I don't associate the stTexture Sampler with the right texture
unit, but how can I do it with an loaded .osg file ?
Thank you!
Cheers, searching for the Pivot of my Soul, PP !!!
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Re: [osg-users] Extract ModelView Projection Matrix for GLSL Program version 150 and higher
Hi, To Wojciech, that would be a workaround, but not a ( correct ) solution, right ? To Robert, nice, this was my hoped-for answer, will try building right away. Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=32221#32221 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Extract ModelView Projection Matrix for GLSL Program version 150 and higher
Hi, gl_ModelViewProjectionMatrix and ftransform() are deprecated since GLSL Version 120 ( but still working ), in Version 150 not working at all. Is there a straight forward way to extract the current ModelView and Projection Matrices ( e.g. from StateSet ? ), without having to pass around the Camera through the SG, or extract osg::Transform World Matrix ? Moreover, gl_Vertex is depreciated as well, so how to create a VBO ? Is it possible to use only VertexAttribArray, without VertexArray, NormalArray, etc. ? Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=32198#32198 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgAnimation : keyframe osg::Switch
Hi, i need to switch on and off objects through an animation clip. The Idea is to use a switch node, but there is no boolean interpolator type, and also no keyword name for this kind of channel if I'm not wrong. More over my constraint is to use osg 2.8.3 as it is, and I need to write out the animation data into an osg file. How can this be accomplished ? Thank you! Cheers, PP -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=29788#29788 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Usage of Vertex Buffer Objects
Hi, thanks for your answer. robertosfield wrote: ... no use of the deprecated vertex indicies arrays that osg::Geometry support for backwards compatibility I don't think that this also includes Index Buffer Objects. Do those get specified with Geometry::setVertexAttribArray ? Thank you. Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28988#28988 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Usage of Vertex Buffer Objects
Hi, Think I'm talking about glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ... ) http://www.opengl.org/wiki/Vertex_Buffer_Objects I suggest that you make a VBO for your vertices (vertex, normals, texcoords, perhaps other things) and another VBO for indices (IBO). Thank you! Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28990#28990 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Usage of Vertex Buffer Objects
Hi, sorry, the process is still not clear for me. So just to summerize: I create arrays for Vertices, Normals and UVs, all of them have the same length and I set them with Geometry::Vertex/Normal/TexCoordArray. The Triangles I want to render share some of these VertexData. So I would like to pass an Index Array ( I guess the EBO ), which builds the triangles from the Index Array. How do I specify this Index Array ? Thank you! Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28994#28994 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Usage of Vertex Buffer Objects
Hi, thank you for all your help. I found that what I was looking for in the osggeometry example, its a property of PrimitveSet: polyGeom-addPrimitiveSet(new osg::DrawElementsUShort(osg::PrimitiveSet::QUADS,numIndices,myIndices)); myIndicies is the IndexArray which I need to pass. Thank you! Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=29015#29015 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osganimation skinning
Hi, Emy wrote: And also why you think using hardware is a better start than software. Well, you'll find the skinning shader under osgAnimation. You should be able to tweak it, the input for linear palette blending should be the same as for dq. So there is no need to extend or derive from any osgAnimation class. Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=29016#29016 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Usage of Vertex Buffer Objects
Hi, I have several questions regarding osg and the usage of VBOs. 1.) How do I ensure usage of vertex buffer object ? When I set osg::Geometry setUseVertexBufferObject to true does this allways create a VBO from the structure I passed to osg::Geometry ? E.G. In the OSG Quick Start Guide by Paul Martz we create a Quad, with four Verts, four Colors and one Normal. Setting osg::Geometry setUseVertexBufferObject to true, would this create convert the data to four Verts/Colors/Normals ? 2.) A Textured Cube has 8 Vertices and at least 12 UVs. How to create this geometry as VBO ? The right Way would be to duplicate Vertices, to have as many as UVs, but how do I create this structure and put this into a geometry ? Same approach as above from the Quick Start guide ? 3.) Lets say I have a geometry like a human, with multiple UV Shells ( UV islands, the usual approach to texture a human ), e.g. Head, Chest, Arms, Legs. How and where do I specifiy these arrays and do I need a geometry per array ? I guess I cannot set multiple Vertex/Normal/UV Arrays into one geometry, so should I stich all those arrays and pass it as one ? But this would mean that I cannot use Triangle Strips, wouldn't it ? 4.) What is the Usage of osg::VertexBufferObject ? Its not a Drawable, and osg::Geometry has no setVertexBufferObject method. It can be set into a osg::Array, where the size of each element is constraint to enums. If I understood VBOs right I can define any Data of any size as one Array element, e.g. Vertex, Normal, and UV which would be 8 floats. There is no option for 8 floats, so isn't this a limitation ? Thanks for any help and advice Cheers, ParticlePeter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28969#28969 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgAnimation speed control
Hi, Thx, but if I understand the simuation time right, it is a global value for the complete SG. I am seraching rather for individual Animation Control per Animation Manager. I import different Characters into the osg environment, each of them has its own AnimationManager and I would like to control the animation speed separatly on per Character baseis. Thank you! Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28301#28301 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osg::Refererenced issue with osgAnimation : writing UniqueIDs at _refCount of min 2
Hi, The FileWrite Systems puts an entry of UniqueIds into osg files only if the _refCount of a referenced object is equal or greater then 2. Those Ids are required in osgAnimation Skinning System, so that the linkVisitor can link bones, skeletton and rigGeomtry. Usually all the bones in a skeletton have a _refCount of 1, if their ref_pointer have been destroyed, so no IDs in file. Is there any clean sollution to this issue, or do I have to traverse the scene graphe and increase the _refCounter manually before writting out ? Thank you! Cheers, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26514#26514 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgAnimation : 02AE6A28 RigTransformSoftware::UniqBoneSetVertexSet no bones found
Hi, but how can this be a version issue ? I have created both the osg files with OpenSceneGraph 2.9.6. Figured out something, those Unique_Ids get written only if ref_ptr is used instead of normal pointers ( for e.g. BasicAnimationManager ), can this be this true ? I will try your trunk. Thank you! Cheers, searching for the Pivot of my Soul, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26446#26446 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Suggesting Forum Category and Wiki for osgAnimation
Hi, Uh, I did not know that this one can be extended by users. How can I add stuff there, and who gives me the permission to do this ? Thank you! Cheers, searching for the Pivot of my Soul, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26462#26462 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgAnimation : 02AE6A28 RigTransformSoftware::UniqBoneSetVertexSet no bones found
Hi,
The change in the bone class was on my feature request list for osgAnimation
:-) as its quite confortable to get the inverseBindMatrix from Maya, especially
if the Charecter is animated and not in bindPose.
But in any case, the issue that I have is still there with your trunk. I
created a minimal scengraph to demostrate missing UniqueIDs. Notice that if
animationManager is not a ref_ptr, the UniqueIDs don't get written into files.
The same is true for skeletton and bone. With unique IDs I get no error.
Isn't this wrong behaviour ?
// UniqueIDs
// --
#include osgDB/WriteFile
#include osgAnimation/BasicAnimationManager
int main ( int argc, char * argv[] )
{
osg::Group * scene = new osg::Group ;
osg::ref_ptr osgAnimation::BasicAnimationManager manager = new
osgAnimation::BasicAnimationManager ;
scene - setUpdateCallback( manager.get() ) ;
osgDB::writeNodeFile( * ( scene ) , osgAnimationSkinning.osg ) ;
return 0 ;
}
// No UniqueIDs
// --
#include osgDB/WriteFile
#include osgAnimation/BasicAnimationManager
int main ( int argc, char * argv[] )
{
osg::Group * scene = new osg::Group ;
osgAnimation::BasicAnimationManager * manager = new
osgAnimation::BasicAnimationManager ;
scene - setUpdateCallback( manager ) ;
osgDB::writeNodeFile( * ( scene ) , osgAnimationSkinning.osg ) ;
return 0 ;
}
Thank you!
Cheers, PP
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[osg-users] osgAnimation : 02AE6A28 RigTransformSoftware::UniqBoneSetVertexSet no bones found
Hi, I'm writing a Maya to osg Exporter, so I need to write Animation and Skinning into osg files. I examined the example osgAnimationSkinning and tweaked it so that it writes an osg file as well. My osg files look quite similar to that from osgAnimationSkinning ( both attached ) , but still I'm getting this error when running with osgAnimationViewer : 02AE6A28 RigTransformSoftware::UniqBoneSetVertexSet no bones found repetedly ( 02AE6A28 seems to be the timer ), while the osgAnimationSkinning file works fine with this message : Skinning.osg LinkVisitor links 0 for root LinkVisitor links 1 for right0 LinkVisitor links 1 for right1 uniq groups 3 for Play The only difference I see between the files is that my osg entities omit UniqueID entries ( e.g. UniqueID Bone_4 ). I can't find the piece of code in osgAnimationSkining, which writes those UniqueIDs into an osg file, and I'm also not sure if this is my error source ( my only guess ). How can get those IDs into my file ( please point me to the code in osgAnimationSkining ), or how can I fix my Problem ? Are there some other simple Examples about osgAnimation skinning ? Thank you! Cheers, searching for the Pivot of my Soul, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26426#26426 Attachments: http://forum.openscenegraph.org//files/osganimationskinning_911.osg http://forum.openscenegraph.org//files/myskinning_252.osg ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Suggesting Forum Category and Wiki for osgAnimation
Hi, Would like to suggest an own Categry for osgAnimation in this Forum, and also a user driven Wiki. Examples and Documentation ( if any ) are quite tough to read, so community could share experience, explain functionality, post examples. If this already exists, I couldn't find it, so please point me there. Thank you! Cheers, searching for the Pivot of my Soul, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26427#26427 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgAnimation, possible to play multiple animations ?
Hi, I would like to crossfade Animations, maybe even mix certain channels of multiple Animations. Is this possible ? The weight attribute of animation and channel seems to be made for this purpose. The osganimationviewer stops an Animation befor it starts a new one. Reading its sourcecode, in particular the stop() and play() methods, the current animation does not get stopped befor a new animation gets started, but still only one animation gets played. So, is it possibe to let run multiple animations within one manager at all ? One more thing, is there any difference ( maybe in purpose ) between BasicAnimtionManager and AnimationManager ? Look pretty much the same ... Thank you! Cheers, searching for the Pivot of my Soul, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=24916#24916 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] How does a osg::Drawable::UpdateCallback Work ?
Hi,
I'm trying to set up an Update Callback in osg::Geometry to dynamically change
the color of a vertex. I get no error, but my code is not evaluated ( cout in
Callback is not printing ). I attached my Callback to osg::Geometry ( a simple
Quad ) and setDataVariance( osg::Object::DYNAMIC ) ;
// Geometry Update Callback - Not Working //
class GeomCallback : public osg::Drawable::UpdateCallback
{
public :
GeomCallback() : _ramp( 0.0f ) {} ;
void operator()( osg::Node * node , osg::NodeVisitor * nodeVisitor )
{
std::cout in Callback ! std::endl ;
osg::Geometry * geom = dynamic_cast osg::Geometry * ( node
) ;
// geometry-getColorArray gives me an osg::Array, but I need a
osg::Vec4Array
// so I try to cast it, don't know if this works, but get no
error
osg::Vec4Array * cols = dynamic_cast osg::Vec4Array * ( geom
- getColorArray() ) ;
// As Cols is my Pointer to the Vec4Array I should be able to
assign different values
cols - assign( 0 , osg::Vec4f( 0.5f + 0.5f * sin( _ramp ) ,
0.0f , 0.0f , 1.0f ) ) ;
_ramp += 0.01f ;
}
private :
float _ramp ;
} ;
Thank you!
Cheers,
Peter
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Re: [osg-users] How does a osg::Drawable::UpdateCallback Work ?
Hi, to Paul: Did you accidentally leave display lists on? Well, I set my Drawable to useVertexBufferObjects, which should overide useDisplayLists. Btw, setting useDisplayLists( false ) throws a null Pointer Exception in threadex.c on my system. To Skylarke: Yes that was one problem, thx, but the expected is still not happening. At least the cout is printing now after I changed the method to update(). Any Ideas why its still not working ? Thank you! Cheers, searching for the Pivot of my Soul, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20964#20964 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How does a osg::Drawable::UpdateCallback Work ?
Source Code, thx. Cheers, searching for the Pivot of my Soul, PP !!! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20966#20966 Attachments: http://forum.openscenegraph.org//files/geom_callbackmain_392.cpp ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Export osgAnimation callbacks into osg files
Hi, and thanks for your fast answer.
To reconstruct my problem I take the osgAnimationNode Example and tweak its
main, so that it writes an osg file instead of creating the viewer (
Attachment ).
When I open the osg file with an text editor, the UpdeteCallbacks are empty,
and the file crashes the osganimationviewer with the error message: no
osgAnimation::AnimationManagerBase found in the subgraph, no animations
available
Files that I export from Blender do have osgAnimation::BasicAnimationManager
and keyframe data in the UpdateCallback Block.
I think the problem is, that in my case AnimtkUpdateCallback should be derived
from osgAnimation::BasicAnimationManager insted of osg::NodeCallback, but I
don't get it to work.
Could you tweak this file so that it works ? That would be a great help, thx.
Cheers, searching for Pivot of my Soul, PP !!! ( - ParticlePeter )
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/* -*-c++-*-
* Copyright (C) 2008 Cedric Pinson morni...@plopbyte.net
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#include iostream
#include osg/Geometry
#include osg/Shape
#include osg/ShapeDrawable
#include osgViewer/Viewer
#include osgGA/TrackballManipulator
#include osg/MatrixTransform
#include osg/Material
#include osgAnimation/Sampler
#include osgDB/WriteFile
#include stdio.h
class AnimtkUpdateCallback : public osg::NodeCallback
{
public:
META_Object(osgAnimation, AnimtkUpdateCallback);
AnimtkUpdateCallback()
{
_sampler = new osgAnimation::Vec3CubicBezierSampler;
_playing = false;
_lastUpdate = 0;
}
AnimtkUpdateCallback(const AnimtkUpdateCallback val, const osg::CopyOp
copyop = osg::CopyOp::SHALLOW_COPY):
osg::Object(val, copyop),
osg::NodeCallback(val, copyop),
_sampler(val._sampler),
_startTime(val._startTime),
_currentTime(val._currentTime),
_playing(val._playing),
_lastUpdate(val._lastUpdate)
{
}
/** Callback method called by the NodeVisitor when visiting a node.*/
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
if (nv-getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR
nv-getFrameStamp()
nv-getFrameStamp()-getFrameNumber() != _lastUpdate) {
_lastUpdate = nv-getFrameStamp()-getFrameNumber();
_currentTime = osg::Timer::instance()-tick();
if (_playing _sampler.get() _sampler-getKeyframeContainer())
{
osg::MatrixTransform* transform =
dynamic_castosg::MatrixTransform*(node);
if (transform) {
osg::Vec3 result;
float t = osg::Timer::instance()-delta_s(_startTime,
_currentTime);
float duration = _sampler-getEndTime() -
_sampler-getStartTime();
t = fmod(t, duration);
t += _sampler-getStartTime();
_sampler-getValueAt(t, result);
transform-setMatrix(osg::Matrix::translate(result));
}
}
}
// note, callback is responsible for scenegraph traversal so
// they must call traverse(node,nv) to ensure that the
// scene graph subtree (and associated callbacks) are traversed.
traverse(node,nv);
}
void start() { _startTime = osg::Timer::instance()-tick(); _currentTime =
_startTime; _playing = true;}
void stop() { _currentTime = _startTime; _playing = false;}
osg::ref_ptrosgAnimation::Vec3CubicBezierSampler _sampler;
osg::Timer_t _startTime;
osg::Timer_t _currentTime;
bool _playing;
int _lastUpdate;
};
class AnimtkStateSetUpdateCallback : public osg::StateSet::Callback
{
public:
META_Object(osgAnimation, AnimtkStateSetUpdateCallback);
AnimtkStateSetUpdateCallback()
{
_sampler = new osgAnimation::Vec4LinearSampler;
_playing = false;
_lastUpdate = 0;
}
AnimtkStateSetUpdateCallback(const AnimtkStateSetUpdateCallback val, const
osg::CopyOp copyop = osg::CopyOp::SHALLOW_COPY):
osg::Object(val, copyop),
osg::StateSet::Callback(val, copyop),
_sampler(val._sampler),
_startTime(val._startTime),
_currentTime(val._currentTime),
_playing(val._playing),
_lastUpdate(val._lastUpdate)
{
}
/** Callback method called by the
