Hi Glenn, My guess is that the best solution would to have the osg::State::convertShaderSourceToOsgBuilts() check for the initial # directivtives and place the OSG declarations there. Feel free to put together a modification osg to do this :-)
Robert. On Mon, Jan 3, 2011 at 9:46 PM, Glenn Waldron <[email protected]> wrote: > Hi Robert, > I'm seeing the following GLSL compile error. It looks like the code in > State::convertShaderSourceToOsgBuiltins() is inserting declarations before > the "#version" directive, which is apparently illegal. (Only on one of our > machines does OSG even go down this code path ... I am still investigating > why that is.) > Let me know if you will accept a patch to insert declarations after any GLSL > compiler directives, or whether you think another solution would be more > appropriate. Thanks. > > State::convertShaderSourceToOsgBuiltIns() > ++Before Converted source > #version 110 > uniform mat4 osgearth_overlay_TexGenMatrix; > uniform mat4 osg_ViewMatrixInverse; > void osgearth_overlay_vertex(void) > { > gl_TexCoord[0] = osgearth_overlay_TexGenMatrix * osg_ViewMatrixInverse * > gl_ModelViewMatrix * gl_Vertex; > } > > ++++++++ > -------- Converted source > uniform mat4 osg_ModelViewMatrix; > attribute vec4 osg_Vertex; > #version 110 > uniform mat4 osgearth_overlay_TexGenMatrix; > uniform mat4 osg_ViewMatrixInverse; > void osgearth_overlay_vertex(void) > { > gl_TexCoord[0] = osgearth_overlay_TexGenMatrix * osg_ViewMatrixInverse * > osg_ModelViewMatrix * osg_Vertex; > } > > ---------------- > VERTEX glCompileShader "osgearth_overlay_vertex" FAILED > VERTEX Shader "osgearth_overlay_vertex" infolog: > 0(3) : error C0204: version directive must be first statement and may not be > repeated > > Glenn Waldron : Pelican Mapping : +1.703.652.4791 > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
