Added GeometryPool::s/getUseGeometryShader() hint, and OSG_TERRAIN_USE_GEOMETRY_SHADER env var for setting the default value.

git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14660 16af8721-9629-0410-8352-f15c8da7e697
2015-01-19 11:29:55 +00:00
parent 249c0ff208
commit 3eca5765c9
2 changed files with 16 additions and 0 deletions
--- a/src/osgTerrain/GeometryPool.cpp
+++ b/src/osgTerrain/GeometryPool.cpp
@@ -44,6 +44,19 @@ const osgTerrain::Locator* osgTerrain::computeMasterLocator(const osgTerrain::Te
 GeometryPool::GeometryPool():
    _useGeometryShader(false)
 {
+    const char* ptr = 0;
+    if ((ptr = getenv("OSG_TERRAIN_USE_GEOMETRY_SHADER")) != 0)
+    {
+        if (strcmp(ptr,"OFF")==0 || strcmp(ptr,"Off")==0 || strcmp(ptr,"off")==0 ||
+            strcmp(ptr,"FALSE")==0 || strcmp(ptr,"False")==0 || strcmp(ptr,"false")==0)
+        {
+            _useGeometryShader = false;
+        }
+        else
+        {
+            _useGeometryShader = true;
+        }
+    }
 }

 GeometryPool::~GeometryPool()