diff --git a/scwx-qt/source/scwx/qt/gl/draw/geo_lines.cpp b/scwx-qt/source/scwx/qt/gl/draw/geo_lines.cpp
index 0f9dd191..e415d24e 100644
--- a/scwx-qt/source/scwx/qt/gl/draw/geo_lines.cpp
+++ b/scwx-qt/source/scwx/qt/gl/draw/geo_lines.cpp
@@ -136,7 +136,8 @@ void GeoLines::set_thresholded(bool thresholded)
 
 void GeoLines::Initialize()
 {
-   gl::OpenGLFunctions& gl = p->context_->gl();
+   gl::OpenGLFunctions& gl   = p->context_->gl();
+   auto&                gl30 = p->context_->gl30();
 
    p->shaderProgram_ = p->context_->GetShaderProgram(
       {{GL_VERTEX_SHADER, ":/gl/geo_texture2d.vert"},
@@ -215,6 +216,9 @@ void GeoLines::Initialize()
                              reinterpret_cast<void*>(1 * sizeof(GLint)));
    gl.glEnableVertexAttribArray(6);
 
+   // aDisplayed
+   gl30.glVertexAttribI1i(7, 1);
+
    p->dirty_ = true;
 }
 
diff --git a/scwx-qt/source/scwx/qt/gl/draw/placefile_icons.cpp b/scwx-qt/source/scwx/qt/gl/draw/placefile_icons.cpp
index d343acf3..abc852f8 100644
--- a/scwx-qt/source/scwx/qt/gl/draw/placefile_icons.cpp
+++ b/scwx-qt/source/scwx/qt/gl/draw/placefile_icons.cpp
@@ -161,7 +161,8 @@ void PlacefileIcons::set_thresholded(bool thresholded)
 
 void PlacefileIcons::Initialize()
 {
-   gl::OpenGLFunctions& gl = p->context_->gl();
+   gl::OpenGLFunctions& gl   = p->context_->gl();
+   auto&                gl30 = p->context_->gl30();
 
    p->shaderProgram_ = p->context_->GetShaderProgram(
       {{GL_VERTEX_SHADER, ":/gl/geo_texture2d.vert"},
@@ -251,6 +252,9 @@ void PlacefileIcons::Initialize()
                              reinterpret_cast<void*>(1 * sizeof(GLint)));
    gl.glEnableVertexAttribArray(6);
 
+   // aDisplayed
+   gl30.glVertexAttribI1i(7, 1);
+
    p->dirty_ = true;
 }
 
diff --git a/scwx-qt/source/scwx/qt/gl/draw/placefile_images.cpp b/scwx-qt/source/scwx/qt/gl/draw/placefile_images.cpp
index a1fbe032..aafaef8d 100644
--- a/scwx-qt/source/scwx/qt/gl/draw/placefile_images.cpp
+++ b/scwx-qt/source/scwx/qt/gl/draw/placefile_images.cpp
@@ -139,7 +139,8 @@ void PlacefileImages::set_thresholded(bool thresholded)
 
 void PlacefileImages::Initialize()
 {
-   gl::OpenGLFunctions& gl = p->context_->gl();
+   gl::OpenGLFunctions& gl   = p->context_->gl();
+   auto&                gl30 = p->context_->gl30();
 
    p->shaderProgram_ = p->context_->GetShaderProgram(
       {{GL_VERTEX_SHADER, ":/gl/geo_texture2d.vert"},
@@ -220,6 +221,9 @@ void PlacefileImages::Initialize()
                              reinterpret_cast<void*>(1 * sizeof(GLint)));
    gl.glEnableVertexAttribArray(6);
 
+   // aDisplayed
+   gl30.glVertexAttribI1i(7, 1);
+
    p->dirty_ = true;
 }
 
diff --git a/scwx-qt/source/scwx/qt/gl/draw/placefile_lines.cpp b/scwx-qt/source/scwx/qt/gl/draw/placefile_lines.cpp
index ced0a41a..8fdce9f1 100644
--- a/scwx-qt/source/scwx/qt/gl/draw/placefile_lines.cpp
+++ b/scwx-qt/source/scwx/qt/gl/draw/placefile_lines.cpp
@@ -131,7 +131,8 @@ void PlacefileLines::set_thresholded(bool thresholded)
 
 void PlacefileLines::Initialize()
 {
-   gl::OpenGLFunctions& gl = p->context_->gl();
+   gl::OpenGLFunctions& gl   = p->context_->gl();
+   auto&                gl30 = p->context_->gl30();
 
    p->shaderProgram_ = p->context_->GetShaderProgram(
       {{GL_VERTEX_SHADER, ":/gl/geo_texture2d.vert"},
@@ -209,6 +210,9 @@ void PlacefileLines::Initialize()
                              reinterpret_cast<void*>(1 * sizeof(GLint)));
    gl.glEnableVertexAttribArray(6);
 
+   // aDisplayed
+   gl30.glVertexAttribI1i(7, 1);
+
    p->dirty_ = true;
 }
 
diff --git a/scwx-qt/source/scwx/qt/gl/gl_context.cpp b/scwx-qt/source/scwx/qt/gl/gl_context.cpp
index 592d12cb..813225e1 100644
--- a/scwx-qt/source/scwx/qt/gl/gl_context.cpp
+++ b/scwx-qt/source/scwx/qt/gl/gl_context.cpp
@@ -31,7 +31,8 @@ public:
    static std::size_t
    GetShaderKey(std::initializer_list<std::pair<GLenum, std::string>> shaders);
 
-   gl::OpenGLFunctions gl_;
+   gl::OpenGLFunctions  gl_;
+   QOpenGLFunctions_3_0 gl30_;
 
    bool glInitialized_ {false};
 
@@ -56,6 +57,11 @@ gl::OpenGLFunctions& GlContext::gl()
    return p->gl_;
 }
 
+QOpenGLFunctions_3_0& GlContext::gl30()
+{
+   return p->gl30_;
+}
+
 std::uint64_t GlContext::texture_buffer_count() const
 {
    return p->textureBufferCount_;
@@ -68,6 +74,9 @@ void GlContext::Impl::InitializeGL()
       return;
    }
 
+   gl_.initializeOpenGLFunctions();
+   gl30_.initializeOpenGLFunctions();
+
    gl_.glGenTextures(1, &textureAtlas_);
 
    glInitialized_ = true;
@@ -122,6 +131,11 @@ GLuint GlContext::GetTextureAtlas()
    return p->textureAtlas_;
 }
 
+void GlContext::Initialize()
+{
+   p->InitializeGL();
+}
+
 std::size_t GlContext::Impl::GetShaderKey(
    std::initializer_list<std::pair<GLenum, std::string>> shaders)
 {
diff --git a/scwx-qt/source/scwx/qt/gl/gl_context.hpp b/scwx-qt/source/scwx/qt/gl/gl_context.hpp
index b09ff403..1ba74fb8 100644
--- a/scwx-qt/source/scwx/qt/gl/gl_context.hpp
+++ b/scwx-qt/source/scwx/qt/gl/gl_context.hpp
@@ -3,6 +3,8 @@
 #include <scwx/qt/gl/gl.hpp>
 #include <scwx/qt/gl/shader_program.hpp>
 
+#include <QOpenGLFunctions_3_0>
+
 namespace scwx
 {
 namespace qt
@@ -22,7 +24,8 @@ public:
    GlContext(GlContext&&) noexcept;
    GlContext& operator=(GlContext&&) noexcept;
 
-   gl::OpenGLFunctions& gl();
+   gl::OpenGLFunctions&  gl();
+   QOpenGLFunctions_3_0& gl30();
 
    std::uint64_t texture_buffer_count() const;
 
@@ -34,6 +37,8 @@ public:
 
    GLuint GetTextureAtlas();
 
+   void Initialize();
+
 private:
    class Impl;
 
diff --git a/scwx-qt/source/scwx/qt/map/map_widget.cpp b/scwx-qt/source/scwx/qt/map/map_widget.cpp
index 9737b86e..5d9be73f 100644
--- a/scwx-qt/source/scwx/qt/map/map_widget.cpp
+++ b/scwx-qt/source/scwx/qt/map/map_widget.cpp
@@ -1325,7 +1325,7 @@ void MapWidget::initializeGL()
    logger_->debug("initializeGL()");
 
    makeCurrent();
-   p->context_->gl().initializeOpenGLFunctions();
+   p->context_->Initialize();
 
    // Lock ImGui font atlas prior to new ImGui frame
    std::shared_lock imguiFontAtlasLock {