1 files changed, 16 insertions, 7 deletions
diff --git a/src/scene-terrain.cpp b/src/scene-terrain.cpp
index 9b5bd22..8cea0fb 100644
--- a/src/scene-terrain.cpp
+++ b/src/scene-terrain.cpp
@@ -231,6 +231,21 @@ SceneTerrain::~SceneTerrain()
 }
 
 bool
+SceneTerrain::supported(bool show_errors)
+{
+    GLint vertex_textures;
+    glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &vertex_textures);
+
+    if (show_errors && vertex_textures <= 0) {
+        Log::error("SceneTerrain requires Vertex Texture Fetch support, "
+                   "but GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS is %d\n",
+                   vertex_textures);
+    }
+    
+    return vertex_textures > 0;
+}
+
+bool
 SceneTerrain::load()
 {
     Scene::load();
@@ -251,13 +266,7 @@ SceneTerrain::setup()
 {
     Scene::setup();
 
-    /* Ensure implementation supports vertex texture fetch */
-    GLint vertex_textures;
-    glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &vertex_textures);
-    if (vertex_textures <= 0) {
-        Log::error("SceneTerrain requires Vertex Texture Fetch support, "
-                   "but GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS is %d\n",
-                   vertex_textures);
+    if (!supported(true)) {
         currentFrame_ = 0;
         startTime_ = Util::get_timestamp_us() / 1000000.0;
         running_ = false;