diff --git a/src/slic3r/GUI/3DBed.cpp b/src/slic3r/GUI/3DBed.cpp
index d7fb937d04..7b08b5f793 100644
--- a/src/slic3r/GUI/3DBed.cpp
+++ b/src/slic3r/GUI/3DBed.cpp
@@ -119,7 +119,7 @@ void Bed3D::Axes::render() const
     glsafe(::glEnable(GL_DEPTH_TEST));
 
     shader->start_using();
-    shader->set_uniform("emission_factor", 0.0);
+    shader->set_uniform("emission_factor", 0.0f);
 
     // x axis
     const_cast<GLModel*>(&m_arrow)->set_color(-1, { 0.75f, 0.0f, 0.0f, 1.0f });
@@ -498,7 +498,7 @@ void Bed3D::render_model() const
         GLShaderProgram* shader = wxGetApp().get_shader("gouraud_light");
         if (shader != nullptr) {
             shader->start_using();
-            shader->set_uniform("emission_factor", 0.0);
+            shader->set_uniform("emission_factor", 0.0f);
             glsafe(::glPushMatrix());
             glsafe(::glTranslated(m_model_offset.x(), m_model_offset.y(), m_model_offset.z()));
             model->render();
diff --git a/src/slic3r/GUI/GCodeViewer.cpp b/src/slic3r/GUI/GCodeViewer.cpp
index 090accb6a4..b9a7d23387 100644
--- a/src/slic3r/GUI/GCodeViewer.cpp
+++ b/src/slic3r/GUI/GCodeViewer.cpp
@@ -223,7 +223,7 @@ void GCodeViewer::SequentialView::Marker::render() const
     glsafe(::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));
 
     shader->start_using();
-    shader->set_uniform("emission_factor", 0.0);
+    shader->set_uniform("emission_factor", 0.0f);
 
     glsafe(::glPushMatrix());
     glsafe(::glMultMatrixf(m_world_transform.data()));
diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index f366100acc..e2699fb6d7 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -4148,7 +4148,7 @@ void GLCanvas3D::_render_thumbnail_internal(ThumbnailData& thumbnail_data, const
     glsafe(::glEnable(GL_DEPTH_TEST));
 
     shader->start_using();
-    shader->set_uniform("emission_factor", 0.0);
+    shader->set_uniform("emission_factor", 0.0f);
 
     for (GLVolume* vol : visible_volumes) {
         shader->set_uniform("uniform_color", (vol->printable && !vol->is_outside) ? orange : gray);
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoBase.cpp b/src/slic3r/GUI/Gizmos/GLGizmoBase.cpp
index 92c03cb753..1177c46ca7 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoBase.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoBase.cpp
@@ -183,7 +183,7 @@ void GLGizmoBase::render_grabbers(float size) const
     if (shader == nullptr)
         return;
     shader->start_using();
-    shader->set_uniform("emission_factor", 0.1);
+    shader->set_uniform("emission_factor", 0.1f);
     for (int i = 0; i < (int)m_grabbers.size(); ++i) {
         if (m_grabbers[i].enabled)
             m_grabbers[i].render(m_hover_id == i, size);
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp b/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp
index 707726e080..27b54c595c 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp
@@ -136,7 +136,7 @@ void GLGizmoCut::on_render()
     if (shader == nullptr)
         return;
     shader->start_using();
-    shader->set_uniform("emission_factor", 0.1);
+    shader->set_uniform("emission_factor", 0.1f);
 
     m_grabbers[0].color = GrabberColor;
     m_grabbers[0].render(m_hover_id == 0, (float)((box.size().x() + box.size().y() + box.size().z()) / 3.0));
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoMove.cpp b/src/slic3r/GUI/Gizmos/GLGizmoMove.cpp
index 1211864ebc..9a056adcb3 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoMove.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoMove.cpp
@@ -141,7 +141,7 @@ void GLGizmoMove3D::on_render()
         GLShaderProgram* shader = wxGetApp().get_shader("gouraud_light");
         if (shader != nullptr) {
             shader->start_using();
-            shader->set_uniform("emission_factor", 0.1);
+            shader->set_uniform("emission_factor", 0.1f);
             // draw grabber
             float mean_size = (float)((box.size().x() + box.size().y() + box.size().z()) / 3.0);
             m_grabbers[m_hover_id].render(true, mean_size);
@@ -208,7 +208,7 @@ void GLGizmoMove3D::render_grabber_extension(Axis axis, const BoundingBoxf3& box
     const_cast<GLModel*>(&m_vbo_cone)->set_color(-1, color);
     if (!picking) {
         shader->start_using();
-        shader->set_uniform("emission_factor", 0.1);
+        shader->set_uniform("emission_factor", 0.1f);
     }
 
     glsafe(::glPushMatrix());
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoRotate.cpp b/src/slic3r/GUI/Gizmos/GLGizmoRotate.cpp
index a495db4f13..2e32a25681 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoRotate.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoRotate.cpp
@@ -339,7 +339,7 @@ void GLGizmoRotate::render_grabber_extension(const BoundingBoxf3& box, bool pick
     const_cast<GLModel*>(&m_cone)->set_color(-1, color);
     if (!picking) {
         shader->start_using();
-        shader->set_uniform("emission_factor", 0.1);
+        shader->set_uniform("emission_factor", 0.1f);
     }
 
     glsafe(::glPushMatrix());
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoScale.cpp b/src/slic3r/GUI/Gizmos/GLGizmoScale.cpp
index 8490469627..894d844d83 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoScale.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoScale.cpp
@@ -236,7 +236,7 @@ void GLGizmoScale3D::on_render()
         GLShaderProgram* shader = wxGetApp().get_shader("gouraud_light");
         if (shader != nullptr) {
             shader->start_using();
-            shader->set_uniform("emission_factor", 0.1);
+            shader->set_uniform("emission_factor", 0.1f);
             // draw grabbers
             m_grabbers[0].render(true, grabber_mean_size);
             m_grabbers[1].render(true, grabber_mean_size);
@@ -251,7 +251,7 @@ void GLGizmoScale3D::on_render()
         GLShaderProgram* shader = wxGetApp().get_shader("gouraud_light");
         if (shader != nullptr) {
             shader->start_using();
-            shader->set_uniform("emission_factor", 0.1);
+            shader->set_uniform("emission_factor", 0.1f);
             // draw grabbers
             m_grabbers[2].render(true, grabber_mean_size);
             m_grabbers[3].render(true, grabber_mean_size);
@@ -266,7 +266,7 @@ void GLGizmoScale3D::on_render()
         GLShaderProgram* shader = wxGetApp().get_shader("gouraud_light");
         if (shader != nullptr) {
             shader->start_using();
-            shader->set_uniform("emission_factor", 0.1);
+            shader->set_uniform("emission_factor", 0.1f);
             // draw grabbers
             m_grabbers[4].render(true, grabber_mean_size);
             m_grabbers[5].render(true, grabber_mean_size);
@@ -284,7 +284,7 @@ void GLGizmoScale3D::on_render()
         GLShaderProgram* shader = wxGetApp().get_shader("gouraud_light");
         if (shader != nullptr) {
             shader->start_using();
-            shader->set_uniform("emission_factor", 0.1);
+            shader->set_uniform("emission_factor", 0.1f);
             // draw grabbers
             for (int i = 6; i < 10; ++i) {
                 m_grabbers[i].render(true, grabber_mean_size);
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoSlaSupports.cpp b/src/slic3r/GUI/Gizmos/GLGizmoSlaSupports.cpp
index fa61779ec9..71607b3510 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoSlaSupports.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoSlaSupports.cpp
@@ -169,7 +169,7 @@ void GLGizmoSlaSupports::render_points(const Selection& selection, bool picking)
         const_cast<GLModel*>(&m_cone)->set_color(-1, render_color);
         const_cast<GLModel*>(&m_sphere)->set_color(-1, render_color);
         if (shader && !picking)
-            shader->set_uniform("emission_factor", 0.5);
+            shader->set_uniform("emission_factor", 0.5f);
 
         // Inverse matrix of the instance scaling is applied so that the mark does not scale with the object.
         glsafe(::glPushMatrix());
@@ -224,7 +224,7 @@ void GLGizmoSlaSupports::render_points(const Selection& selection, bool picking)
         render_color[3] = 0.7f;
         const_cast<GLModel*>(&m_cylinder)->set_color(-1, render_color);
         if (shader)
-            shader->set_uniform("emission_factor", 0.5);
+            shader->set_uniform("emission_factor", 0.5f);
         for (const sla::DrainHole& drain_hole : m_c->selection_info()->model_object()->sla_drain_holes) {
             if (is_mesh_point_clipped(drain_hole.pos.cast<double>()))
                 continue;
diff --git a/src/slic3r/GUI/Selection.cpp b/src/slic3r/GUI/Selection.cpp
index dbc2594440..6a47113fac 100644
--- a/src/slic3r/GUI/Selection.cpp
+++ b/src/slic3r/GUI/Selection.cpp
@@ -1872,7 +1872,7 @@ void Selection::render_sidebar_scale_hints(const std::string& sidebar_field) con
         const_cast<GLModel*>(&m_arrow)->set_color(-1, uniform_scale ? UNIFORM_SCALE_COLOR : get_color(axis));
         GLShaderProgram* shader = wxGetApp().get_current_shader();
         if (shader != nullptr)
-            shader->set_uniform("emission_factor", 0.0);
+            shader->set_uniform("emission_factor", 0.0f);
 
         glsafe(::glTranslated(0.0, 5.0, 0.0));
         m_arrow.render();