Pushed background image away from eye point a small amount to prevent z fighting with text on the image plane.

2017-12-09 11:12:35 +00:00
parent 90748f8b74
commit 9bf3d2b7ce
1 changed files with 2 additions and 1 deletions
--- a/src/osgPresentation/SlideShowConstructor.cpp
+++ b/src/osgPresentation/SlideShowConstructor.cpp
@@ -484,7 +484,8 @@ void SlideShowConstructor::addLayer(bool inheritPreviousLayers, bool defineAsBas
            bool useTextureRectangle = true;
            float s = useTextureRectangle ? image->s() : 1.0;
            float t = useTextureRectangle ? image->t() : 1.0;
-            osg::Geometry* backgroundQuad = osg::createTexturedQuadGeometry(_slideOrigin,
+            osg::Vec3 backgroundShift(0.0f, _slideWidth*0.0001f, 0.0f);
+            osg::Geometry* backgroundQuad = osg::createTexturedQuadGeometry(_slideOrigin+backgroundShift,
                                                            osg::Vec3(_slideWidth,0.0f,0.0f),
                                                            osg::Vec3(0.0f,0.0f,_slideHeight),
                                                            s, t);