diff --git a/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglTetrahedralModel.inl b/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglTetrahedralModel.inl
index 057be3f3e565..a2c4849bfa0a 100644
--- a/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglTetrahedralModel.inl
+++ b/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglTetrahedralModel.inl
@@ -286,7 +286,15 @@ void OglTetrahedralModel<DataTypes>::drawTransparent(const core::visual::VisualP
 
     glBindBufferARB(GL_ARRAY_BUFFER, m_vbo);
 
-    glVertexPointer(3, GL_FLOAT, 0, (char*)NULL + 0);
+    int gltype = GL_FLOAT;
+
+    if constexpr (std::is_same_v<typename Coord::value_type, double>)
+    {
+        gltype = GL_DOUBLE;
+    }
+
+    glVertexPointer(3, gltype, 0, nullptr);
+
     glBindBufferARB(GL_ARRAY_BUFFER, 0);
 
     glEnableClientState(GL_VERTEX_ARRAY);
diff --git a/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglVolumetricModel.cpp b/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglVolumetricModel.cpp
index 9f370ad79a0f..cbae8eb96c99 100644
--- a/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglVolumetricModel.cpp
+++ b/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglVolumetricModel.cpp
@@ -424,7 +424,14 @@ void OglVolumetricModel::drawTransparent(const core::visual::VisualParams* vpara
 #ifdef GL_LINES_ADJACENCY_EXT
     glBindBufferARB(GL_ARRAY_BUFFER, m_vbo);
 
-    glVertexPointer(3, GL_FLOAT, 0, (char*)NULL + 0);
+    int gltype = GL_FLOAT;
+
+    if constexpr (std::is_same_v<typename Coord::value_type, double>)
+    {
+        gltype = GL_DOUBLE;
+    }
+
+    glVertexPointer(3, gltype, 0, nullptr);
     glBindBufferARB(GL_ARRAY_BUFFER, 0);
     
     glEnableClientState(GL_VERTEX_ARRAY);
diff --git a/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglVolumetricModel.h b/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglVolumetricModel.h
index 9ba29bc4300a..7fc4034afad5 100644
--- a/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglVolumetricModel.h
+++ b/applications/plugins/VolumetricRendering/src/VolumetricRendering/OglVolumetricModel.h
@@ -94,8 +94,8 @@ class SOFA_VOLUMETRICRENDERING_API OglVolumetricModel : public core::visual::Vis
 
     sofa::type::vector<Tetrahedron> m_hexaToTetrahedra;
 
-    sofa::type::vector<Coord> m_tetraBarycenters;
-    sofa::type::vector<Coord> m_hexaBarycenters;
+    sofa::type::vector<type::Vec3f> m_tetraBarycenters;
+    sofa::type::vector<type::Vec3f> m_hexaBarycenters;
 
 public:
     void init() override;