diff --git a/src/libslic3r/Utils.hpp b/src/libslic3r/Utils.hpp
index c9ee17235d..bf9a590053 100644
--- a/src/libslic3r/Utils.hpp
+++ b/src/libslic3r/Utils.hpp
@@ -26,6 +26,9 @@ extern void set_logging_level(unsigned int level);
 extern unsigned get_logging_level();
 // Format memory allocated, separate thousands by comma.
 extern std::string format_memsize_MB(size_t n);
+#if ENABLE_NEW_GCODE_VIEWER
+std::string format_memsize(size_t bytes, unsigned int decimals = 1);
+#endif // ENABLE_NEW_GCODE_VIEWER
 // Return string to be added to the boost::log output to inform about the current process memory allocation.
 // The string is non-empty if the loglevel >= info (3) or ignore_loglevel==true.
 // Latter is used to get the memory info from SysInfoDialog.
diff --git a/src/libslic3r/utils.cpp b/src/libslic3r/utils.cpp
index 29c9bad1c0..5d28934da1 100644
--- a/src/libslic3r/utils.cpp
+++ b/src/libslic3r/utils.cpp
@@ -1083,6 +1083,44 @@ std::string format_memsize_MB(size_t n)
     return out + "MB";
 }
 
+#if ENABLE_NEW_GCODE_VIEWER
+std::string format_memsize(size_t bytes, unsigned int decimals)
+{
+		static constexpr const float kb = 1024.0f;
+		static constexpr const float mb = 1024.0f * kb;
+		static constexpr const float gb = 1024.0f * mb;
+		static constexpr const float tb = 1024.0f * gb;
+
+		const float f_bytes = static_cast<float>(bytes);
+		if (f_bytes < kb)
+				return std::to_string(bytes) + " bytes";
+		else if (f_bytes < mb) {
+				const float f_kb = f_bytes / kb;
+				char buf[64];
+				sprintf(buf, "%.*f", decimals, f_kb);
+				return std::to_string(bytes) + " bytes (" + std::string(buf) + "KB)";
+		}
+		else if (f_bytes < gb) {
+				const float f_mb = f_bytes / mb;
+				char buf[64];
+				sprintf(buf, "%.*f", decimals, f_mb);
+				return std::to_string(bytes) + " bytes (" + std::string(buf) + "MB)";
+		}
+		else if (f_bytes < tb) {
+				const float f_gb = f_bytes / gb;
+				char buf[64];
+				sprintf(buf, "%.*f", decimals, f_gb);
+				return std::to_string(bytes) + " bytes (" + std::string(buf) + "GB)";
+		}
+		else {
+				const float f_tb = f_bytes / tb;
+				char buf[64];
+				sprintf(buf, "%.*f", decimals, f_tb);
+				return std::to_string(bytes) + " bytes (" + std::string(buf) + "TB)";
+		}
+}
+#endif // ENABLE_NEW_GCODE_VIEWER
+
 // Returns platform-specific string to be used as log output or parsed in SysInfoDialog.
 // The latter parses the string with (semi)colons as separators, it should look about as
 // "desc1: value1; desc2: value2" or similar (spaces should not matter).
diff --git a/src/libvgcode/include/ColorPrint.hpp b/src/libvgcode/include/ColorPrint.hpp
index 218a852252..071b93a708 100644
--- a/src/libvgcode/include/ColorPrint.hpp
+++ b/src/libvgcode/include/ColorPrint.hpp
@@ -14,7 +14,6 @@ struct ColorPrint
     uint8_t extruder_id{ 0 };
     uint8_t color_id{ 0 };
     uint32_t layer_id{ 0 };
-//    float layer_z{ 0.0f };
     std::array<float, TIME_MODES_COUNT> times{ 0.0f, 0.0f };
 };
 
diff --git a/src/libvgcode/include/ColorRange.hpp b/src/libvgcode/include/ColorRange.hpp
index 9cce571709..3c5cbc0f87 100644
--- a/src/libvgcode/include/ColorRange.hpp
+++ b/src/libvgcode/include/ColorRange.hpp
@@ -25,19 +25,6 @@ static const Palette DEFAULT_RANGES_COLORS{ {
     { 148,  38,  22 }  // reddish
 } };
 
-//
-// Helper class to interpolate between colors defined in a palette.
-// Interpolation can be done linearly or logarithmically.
-// Usage:
-// 1) Define an instance of ColorRange of the desired interpolation type
-//    ColorRange range(EColorRangeType::Linear);
-// 2) Pass to the instance all the values needed to setup the range:
-//    for (size_t i = 0; i < my_data.size(); ++i) {
-//        range.update(my_data[i]);
-//    }
-// 3) Get the color at the desired value:
-//    Color c = range.get_color_at(value);
-//
 class ColorRange
 {
 public:
@@ -79,6 +66,10 @@ public:
     // get_palette().size() - If more than two distinct values were detected while setting up this ColorRange.
     //
     std::vector<float> get_values() const;
+    //
+    // Return the size of the palette, in bytes
+    //
+    size_t size_in_bytes_cpu() const;
 
     static const ColorRange DUMMY_COLOR_RANGE;
 
diff --git a/src/libvgcode/include/PathVertex.hpp b/src/libvgcode/include/PathVertex.hpp
index 569379137b..e1e58fde1e 100644
--- a/src/libvgcode/include/PathVertex.hpp
+++ b/src/libvgcode/include/PathVertex.hpp
@@ -100,9 +100,9 @@ struct PathVertex
     // Return true if the segment was generated by custom gcode
     //
     bool is_custom_gcode() const;
-};
 
-static const PathVertex DUMMY_PATH_VERTEX = PathVertex();
+    static const PathVertex DUMMY_PATH_VERTEX;
+};
 
 } // namespace libvgcode
 
diff --git a/src/libvgcode/include/Viewer.hpp b/src/libvgcode/include/Viewer.hpp
index 83d9eab49d..6f9b57e8c4 100644
--- a/src/libvgcode/include/Viewer.hpp
+++ b/src/libvgcode/include/Viewer.hpp
@@ -351,6 +351,14 @@ public:
     // Return the axes aligned bounding box of the toolpaths.
     //
     AABox get_bounding_box(EBBoxType type) const;
+    //
+    // Return the size of the used cpu memory, in bytes
+    //
+    size_t get_used_cpu_memory() const;
+    //
+    // Return the size of the used gpu memory, in bytes
+    //
+    size_t get_used_gpu_memory() const;
 
 #if VGCODE_ENABLE_DEBUG_CODE
     size_t get_enabled_segments_count() const;
diff --git a/src/libvgcode/src/Bitset.hpp b/src/libvgcode/src/Bitset.hpp
index 83805cab92..2fdd027f01 100644
--- a/src/libvgcode/src/Bitset.hpp
+++ b/src/libvgcode/src/Bitset.hpp
@@ -84,13 +84,16 @@ struct BitSet
         return oldval xor (oldval and mask);
     }
 
-    std::pair<size_t, size_t> get_coords(size_t index) const
-    {
+    std::pair<size_t, size_t> get_coords(size_t index) const {
         const size_t block_idx = index / (sizeof(T) * 8);
         const size_t bit_idx = index % (sizeof(T) * 8);
         return { block_idx, bit_idx };
     }
 
+    size_t size_in_bytes_cpu() const {
+        return blocks.size() * sizeof(T);
+    }
+
     size_t size{ 0 };
     std::vector<T> blocks{ 0 };
 };
diff --git a/src/libvgcode/src/CogMarker.cpp b/src/libvgcode/src/CogMarker.cpp
index 4b3271a5c3..fbf3ef9fcf 100644
--- a/src/libvgcode/src/CogMarker.cpp
+++ b/src/libvgcode/src/CogMarker.cpp
@@ -85,6 +85,9 @@ void CogMarker::init(uint8_t resolution, float radius)
         }
     }
 
+    m_size_in_bytes_gpu += vertices.size() * sizeof(float);
+    m_size_in_bytes_gpu += indices.size() * sizeof(uint16_t);
+
     const size_t vertex_stride = 6 * sizeof(float);
     const size_t position_offset = 0;
     const size_t normal_offset = 3 * sizeof(float);
@@ -126,6 +129,8 @@ void CogMarker::shutdown()
         glsafe(glDeleteVertexArrays(1, &m_vao_id));
         m_vao_id = 0;
     }
+
+    m_size_in_bytes_gpu = 0;
 }
 
 void CogMarker::render()
diff --git a/src/libvgcode/src/CogMarker.hpp b/src/libvgcode/src/CogMarker.hpp
index 3c2dc80ef7..fd06e3e9d1 100644
--- a/src/libvgcode/src/CogMarker.hpp
+++ b/src/libvgcode/src/CogMarker.hpp
@@ -22,29 +22,33 @@ public:
     CogMarker& operator = (CogMarker&& other) = delete;
 
     //
-    // Initialize gpu buffers.
+    // Initialize gpu buffers
     //
     void init(uint8_t resolution, float radius);
     //
-    // Release gpu buffers.
+    // Release gpu buffers
     //
     void shutdown();
+    //
+    // Render the marker
+    //
     void render();
-
     //
     // Update values used to calculate the center of gravity
     //
     void update(const Vec3& position, float mass);
-
     //
     // Reset values used to calculate the center of gravity
     //
     void reset();
-
     //
-    // Return the calculated center of gravity
+    // Return the calculated center of gravity position
     //
     Vec3 get_position() const;
+    //
+    // Return the size of the data sent to gpu, in bytes.
+    //
+    size_t size_in_bytes_gpu() const { return m_size_in_bytes_gpu; }
 
 private:
     //
@@ -52,7 +56,9 @@ private:
     //
     float m_total_mass{ 0.0f };
     Vec3 m_total_position{ 0.0f, 0.0f, 0.0f };
-
+    //
+    // The count of indices stored into the ibo buffer.
+    //
     uint16_t m_indices_count{ 0 };
     //
     // gpu buffers ids.
@@ -60,6 +66,10 @@ private:
     unsigned int m_vao_id{ 0 };
     unsigned int m_vbo_id{ 0 };
     unsigned int m_ibo_id{ 0 };
+    //
+    // Size of the data sent to gpu, in bytes.
+    //
+    size_t m_size_in_bytes_gpu{ 0 };
 };
 
 } // namespace libvgcode
diff --git a/src/libvgcode/src/ColorRange.cpp b/src/libvgcode/src/ColorRange.cpp
index 2964599d99..1ba0dfc526 100644
--- a/src/libvgcode/src/ColorRange.cpp
+++ b/src/libvgcode/src/ColorRange.cpp
@@ -4,6 +4,8 @@
 ///|/
 #include "../include/ColorRange.hpp"
 
+#include "Utils.hpp"
+
 #include <algorithm>
 #include <assert.h>
 #include <cmath>
@@ -112,6 +114,12 @@ std::vector<float> ColorRange::get_values() const
     return ret;
 }
 
+size_t ColorRange::size_in_bytes_cpu() const
+{
+    size_t ret = STDVEC_MEMSIZE(m_palette, Color);
+    return ret;
+}
+
 void ColorRange::update(float value)
 {
     if (value != m_range[0] && value != m_range[1])
diff --git a/src/libvgcode/src/Layers.cpp b/src/libvgcode/src/Layers.cpp
index 642c00c589..16a2e38fcd 100644
--- a/src/libvgcode/src/Layers.cpp
+++ b/src/libvgcode/src/Layers.cpp
@@ -5,6 +5,7 @@
 #include "Layers.hpp"
 
 #include "../include/PathVertex.hpp"
+#include "Utils.hpp"
 
 #include <assert.h>
 #include <algorithm>
@@ -73,4 +74,10 @@ size_t Layers::get_layer_id_at(float z) const
     return std::distance(m_items.begin(), iter);
 }
 
+size_t Layers::size_in_bytes_cpu() const
+{
+    size_t ret = STDVEC_MEMSIZE(m_items, Item);
+    return ret;
+}
+
 } // namespace libvgcode
diff --git a/src/libvgcode/src/Layers.hpp b/src/libvgcode/src/Layers.hpp
index 2faf8cd81f..03c4b32bbc 100644
--- a/src/libvgcode/src/Layers.hpp
+++ b/src/libvgcode/src/Layers.hpp
@@ -40,6 +40,8 @@ public:
         return (layer_id < m_items.size()) ? m_items[layer_id].contains_colorprint_options : false;
     }
 
+    size_t size_in_bytes_cpu() const;
+
 private:
     struct Item
     {
diff --git a/src/libvgcode/src/OptionTemplate.cpp b/src/libvgcode/src/OptionTemplate.cpp
index 31e9e4670a..ba1123210a 100644
--- a/src/libvgcode/src/OptionTemplate.cpp
+++ b/src/libvgcode/src/OptionTemplate.cpp
@@ -50,6 +50,9 @@ void OptionTemplate::init(uint8_t resolution)
         add_vertex(pos, norm, bottom_vertices);
     }
 
+    m_size_in_bytes_gpu += top_vertices.size() * sizeof(float);
+    m_size_in_bytes_gpu += bottom_vertices.size() * sizeof(float);
+
     const size_t vertex_stride = 6 * sizeof(float);
     const size_t position_offset = 0;
     const size_t normal_offset = 3 * sizeof(float);
@@ -101,6 +104,8 @@ void OptionTemplate::shutdown()
         glsafe(glDeleteVertexArrays(1, &m_top_vao_id));
         m_top_vao_id = 0;
     }
+
+    m_size_in_bytes_gpu = 0;
 }
 
 void OptionTemplate::render(size_t count)
diff --git a/src/libvgcode/src/OptionTemplate.hpp b/src/libvgcode/src/OptionTemplate.hpp
index fbdf332e37..e51c9e556d 100644
--- a/src/libvgcode/src/OptionTemplate.hpp
+++ b/src/libvgcode/src/OptionTemplate.hpp
@@ -30,6 +30,11 @@ public:
     void shutdown();
     void render(size_t count);
 
+    //
+    // Return the size of the data sent to gpu, in bytes.
+    //
+    size_t size_in_bytes_gpu() const { return m_size_in_bytes_gpu; }
+
 private:
     uint8_t m_resolution{ 0 };
     uint8_t m_vertices_count{ 0 };
@@ -40,6 +45,10 @@ private:
     unsigned int m_top_vbo_id{ 0 };
     unsigned int m_bottom_vao_id{ 0 };
     unsigned int m_bottom_vbo_id{ 0 };
+    //
+    // Size of the data sent to gpu, in bytes.
+    //
+    size_t m_size_in_bytes_gpu{ 0 };
 };
 
 } // namespace libvgcode
diff --git a/src/libvgcode/src/PathVertex.cpp b/src/libvgcode/src/PathVertex.cpp
index 525f19cd3f..ed1569bc36 100644
--- a/src/libvgcode/src/PathVertex.cpp
+++ b/src/libvgcode/src/PathVertex.cpp
@@ -6,6 +6,8 @@
 
 namespace libvgcode {
 
+const PathVertex PathVertex::DUMMY_PATH_VERTEX = PathVertex();
+
 bool PathVertex::is_extrusion() const
 {
     return type == EMoveType::Extrude;
diff --git a/src/libvgcode/src/SegmentTemplate.cpp b/src/libvgcode/src/SegmentTemplate.cpp
index 7c80812705..93779a8472 100644
--- a/src/libvgcode/src/SegmentTemplate.cpp
+++ b/src/libvgcode/src/SegmentTemplate.cpp
@@ -31,6 +31,8 @@ void SegmentTemplate::init()
     if (m_vao_id != 0)
         return;
 
+    m_size_in_bytes_gpu += VERTEX_DATA.size() * sizeof(uint8_t);
+
     int curr_vertex_array;
     glsafe(glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &curr_vertex_array));
     int curr_array_buffer;
@@ -59,6 +61,8 @@ void SegmentTemplate::shutdown()
         glsafe(glDeleteVertexArrays(1, &m_vao_id));
         m_vao_id = 0;
     }
+
+    m_size_in_bytes_gpu = 0;
 }
 
 void SegmentTemplate::render(size_t count)
diff --git a/src/libvgcode/src/SegmentTemplate.hpp b/src/libvgcode/src/SegmentTemplate.hpp
index bf540bade5..f104eef5d2 100644
--- a/src/libvgcode/src/SegmentTemplate.hpp
+++ b/src/libvgcode/src/SegmentTemplate.hpp
@@ -29,12 +29,21 @@ public:
     void shutdown();
     void render(size_t count);
 
+    //
+    // Return the size of the data sent to gpu, in bytes.
+    //
+    size_t size_in_bytes_gpu() const { return m_size_in_bytes_gpu; }
+
 private:
     //
     // gpu buffers ids.
     //
     unsigned int m_vao_id{ 0 };
     unsigned int m_vbo_id{ 0 };
+    //
+    // Size of the data sent to gpu, in bytes.
+    //
+    size_t m_size_in_bytes_gpu{ 0 };
 };
 
 } // namespace libvgcode
diff --git a/src/libvgcode/src/ToolMarker.cpp b/src/libvgcode/src/ToolMarker.cpp
index 9209a03467..3e595faec0 100644
--- a/src/libvgcode/src/ToolMarker.cpp
+++ b/src/libvgcode/src/ToolMarker.cpp
@@ -105,6 +105,9 @@ void ToolMarker::init(uint16_t resolution, float tip_radius, float tip_height, f
         add_triangle(5 * resolution + 1, v3, i + 5 * resolution + 2, indices);
     }
 
+    m_size_in_bytes_gpu += vertices.size() * sizeof(float);
+    m_size_in_bytes_gpu += indices.size() * sizeof(uint16_t);
+
     const size_t vertex_stride = 6 * sizeof(float);
     const size_t position_offset = 0;
     const size_t normal_offset = 3 * sizeof(float);
@@ -146,6 +149,8 @@ void ToolMarker::shutdown()
         glsafe(glDeleteVertexArrays(1, &m_vao_id));
         m_vao_id = 0;
     }
+
+    m_size_in_bytes_gpu = 0;
 }
 
 void ToolMarker::render()
diff --git a/src/libvgcode/src/ToolMarker.hpp b/src/libvgcode/src/ToolMarker.hpp
index 23b82a3ce8..22328377a2 100644
--- a/src/libvgcode/src/ToolMarker.hpp
+++ b/src/libvgcode/src/ToolMarker.hpp
@@ -47,6 +47,11 @@ public:
     float get_alpha() const { return m_alpha; }
     void set_alpha(float alpha) { m_alpha = std::clamp(alpha, 0.25f, 0.75f); }
 
+    //
+    // Return the size of the data sent to gpu, in bytes.
+    //
+    size_t size_in_bytes_gpu() const { return m_size_in_bytes_gpu; }
+
 private:
     bool m_enabled{ false };
     Vec3 m_position{ 0.0f, 0.0f, 0.0f };
@@ -61,6 +66,10 @@ private:
     unsigned int m_vao_id{ 0 };
     unsigned int m_vbo_id{ 0 };
     unsigned int m_ibo_id{ 0 };
+    //
+    // Size of the data sent to gpu, in bytes.
+    //
+    size_t m_size_in_bytes_gpu{ 0 };
 };
 
 } // namespace libvgcode
diff --git a/src/libvgcode/src/Utils.hpp b/src/libvgcode/src/Utils.hpp
index 78a7585299..84c3deb3c5 100644
--- a/src/libvgcode/src/Utils.hpp
+++ b/src/libvgcode/src/Utils.hpp
@@ -7,6 +7,12 @@
 
 #include "../include/Types.hpp"
 
+#ifdef _WIN32
+#define STDVEC_MEMSIZE(NAME, TYPE) NAME.capacity() * ((sizeof(TYPE) + __alignof(TYPE) - 1) / __alignof(TYPE)) * __alignof(TYPE)
+#else
+#define STDVEC_MEMSIZE(NAME, TYPE) NAME.capacity() * ((sizeof(TYPE) + alignof(TYPE) - 1) / alignof(TYPE)) * alignof(TYPE)
+#endif // _WIN32
+
 namespace libvgcode {
 
 extern void add_vertex(const Vec3& position, const Vec3& normal, std::vector<float>& vertices);
diff --git a/src/libvgcode/src/Viewer.cpp b/src/libvgcode/src/Viewer.cpp
index 658925aaf5..1dfc43ef2b 100644
--- a/src/libvgcode/src/Viewer.cpp
+++ b/src/libvgcode/src/Viewer.cpp
@@ -337,6 +337,16 @@ AABox Viewer::get_bounding_box(EBBoxType type) const
     return m_impl->get_bounding_box(type);
 }
 
+size_t Viewer::get_used_cpu_memory() const
+{
+    return m_impl->get_used_cpu_memory();
+}
+
+size_t Viewer::get_used_gpu_memory() const
+{
+    return m_impl->get_used_gpu_memory();
+}
+
 #if VGCODE_ENABLE_DEBUG_CODE
 size_t Viewer::get_enabled_segments_count() const
 {
diff --git a/src/libvgcode/src/ViewerImpl.cpp b/src/libvgcode/src/ViewerImpl.cpp
index e8bf78a80f..965308ce20 100644
--- a/src/libvgcode/src/ViewerImpl.cpp
+++ b/src/libvgcode/src/ViewerImpl.cpp
@@ -577,6 +577,9 @@ void ViewerImpl::load(GCodeInputData&& gcode_data)
         heights_widths_angles.push_back({ v.height, v.width, angle });
     }
 
+    m_positions_tex_size = positions.size() * sizeof(Vec3);
+    m_height_width_angle_tex_size = heights_widths_angles.size() * sizeof(Vec3);
+
     if (!positions.empty()) {
         int old_bound_texture = 0;
         glsafe(glGetIntegerv(GL_TEXTURE_BINDING_BUFFER, &old_bound_texture));
@@ -693,6 +696,9 @@ void ViewerImpl::update_enabled_entities()
     else
         m_enabled_options_range.reset();
 
+    m_enabled_segments_tex_size = enabled_segments.size() * sizeof(uint32_t);
+    m_enabled_options_tex_size = enabled_options.size() * sizeof(uint32_t);
+
     // update gpu buffer for enabled segments
     assert(m_enabled_segments_buf_id > 0);
     glsafe(glBindBuffer(GL_TEXTURE_BUFFER, m_enabled_segments_buf_id));
@@ -749,6 +755,8 @@ void ViewerImpl::update_colors()
             encode_color(DUMMY_COLOR) : encode_color(get_vertex_color(m_vertices[i]));
     }
 
+    m_colors_tex_size = colors.size() * sizeof(float);
+
     // update gpu buffer for colors
     assert(m_colors_buf_id > 0);
     glsafe(glBindBuffer(GL_TEXTURE_BUFFER, m_colors_buf_id));
@@ -1091,6 +1099,47 @@ void ViewerImpl::set_wipes_radius(float radius)
     update_heights_widths();
 }
 
+size_t ViewerImpl::get_used_cpu_memory() const
+{
+    size_t ret = sizeof(*this);
+    ret += m_layers.size_in_bytes_cpu();
+    ret += STDVEC_MEMSIZE(m_options, EOptionType);
+    ret += m_used_extruders.size() * sizeof(std::map<uint8_t, ColorPrint>::value_type);
+    ret += m_extrusion_roles_colors.size() * sizeof(std::map<EGCodeExtrusionRole, Color>::value_type);
+    ret += m_options_colors.size() * sizeof(std::map<EOptionType, Color>::value_type);
+    ret += STDVEC_MEMSIZE(m_vertices, PathVertex);
+    ret += m_valid_lines_bitset.size_in_bytes_cpu();
+    ret += m_height_range.size_in_bytes_cpu();
+    ret += m_width_range.size_in_bytes_cpu();
+    ret += m_speed_range.size_in_bytes_cpu();
+    ret += m_fan_speed_range.size_in_bytes_cpu();
+    ret += m_temperature_range.size_in_bytes_cpu();
+    ret += m_volumetric_rate_range.size_in_bytes_cpu();
+    for (size_t i = 0; i < COLOR_RANGE_TYPES_COUNT; ++i) {
+        ret += m_layer_time_range[i].size_in_bytes_cpu();
+    }
+    ret += STDVEC_MEMSIZE(m_tool_colors, Color);
+    ret += STDVEC_MEMSIZE(m_color_print_colors, Color);
+    return ret;
+}
+
+size_t ViewerImpl::get_used_gpu_memory() const
+{
+    size_t ret = 0;
+    ret += m_segment_template.size_in_bytes_gpu();
+    ret += m_option_template.size_in_bytes_gpu();
+#if VGCODE_ENABLE_COG_AND_TOOL_MARKERS
+    ret += m_tool_marker.size_in_bytes_gpu();
+    ret += m_cog_marker.size_in_bytes_gpu();
+#endif // VGCODE_ENABLE_COG_AND_TOOL_MARKERS
+    ret += m_positions_tex_size;
+    ret += m_height_width_angle_tex_size;
+    ret += m_colors_tex_size;
+    ret += m_enabled_segments_tex_size;
+    ret += m_enabled_options_tex_size;
+    return ret;
+}
+
 static bool is_visible(const PathVertex& v, const Settings& settings)
 {
     const EOptionType option_type = move_type_to_option(v.type);
diff --git a/src/libvgcode/src/ViewerImpl.hpp b/src/libvgcode/src/ViewerImpl.hpp
index f1d2d751fb..8c23208d0f 100644
--- a/src/libvgcode/src/ViewerImpl.hpp
+++ b/src/libvgcode/src/ViewerImpl.hpp
@@ -116,7 +116,7 @@ public:
     const PathVertex& get_current_vertex() const { return get_vertex_at(get_current_vertex_id()); }
     size_t get_current_vertex_id() const { return static_cast<size_t>(m_view_range.get_visible()[1]); }
     const PathVertex& get_vertex_at(size_t id) const {
-        return (id < m_vertices.size()) ? m_vertices[id] : DUMMY_PATH_VERTEX;
+        return (id < m_vertices.size()) ? m_vertices[id] : PathVertex::DUMMY_PATH_VERTEX;
     }
     float get_estimated_time_at(size_t id) const;
     Color get_vertex_color(const PathVertex& vertex) const;
@@ -163,6 +163,9 @@ public:
     float get_wipes_radius() const { return m_wipes_radius; }
     void set_wipes_radius(float radius);
 
+    size_t get_used_cpu_memory() const;
+    size_t get_used_gpu_memory() const;
+
 #if VGCODE_ENABLE_COG_AND_TOOL_MARKERS
     Vec3 get_cog_marker_position() const { return m_cog_marker.get_position(); }
 
@@ -293,7 +296,7 @@ private:
     unsigned int m_tool_marker_shader_id{ 0 };
 #endif // VGCODE_ENABLE_COG_AND_TOOL_MARKERS
     //
-    // Cache for OpenGL uniforms id for segments shader 
+    // Caches for OpenGL uniforms id for segments shader 
     //
     int m_uni_segments_view_matrix_id{ -1 };
     int m_uni_segments_projection_matrix_id{ -1 };
@@ -303,7 +306,7 @@ private:
     int m_uni_segments_colors_tex_id{ -1 };
     int m_uni_segments_segment_index_tex_id{ -1 };
     //
-    // Cache for OpenGL uniforms id for options shader 
+    // Caches for OpenGL uniforms id for options shader 
     //
     int m_uni_options_view_matrix_id{ -1 };
     int m_uni_options_projection_matrix_id{ -1 };
@@ -313,14 +316,14 @@ private:
     int m_uni_options_segment_index_tex_id{ -1 };
 #if VGCODE_ENABLE_COG_AND_TOOL_MARKERS
     //
-    // Cache for OpenGL uniforms id for cog marker shader 
+    // Caches for OpenGL uniforms id for cog marker shader 
     //
     int m_uni_cog_marker_world_center_position{ -1 };
     int m_uni_cog_marker_scale_factor{ -1 };
     int m_uni_cog_marker_view_matrix{ -1 };
     int m_uni_cog_marker_projection_matrix{ -1 };
     //
-    // Cache for OpenGL uniforms id for tool marker shader 
+    // Caches for OpenGL uniforms id for tool marker shader 
     //
     int m_uni_tool_marker_world_origin{ -1 };
     int m_uni_tool_marker_scale_factor{ -1 };
@@ -353,6 +356,14 @@ private:
     //
     unsigned int m_enabled_options_buf_id{ 0 };
     unsigned int m_enabled_options_tex_id{ 0 };
+    //
+    // Caches for size of data sent to gpu, in bytes
+    //
+    size_t m_positions_tex_size{ 0 };
+    size_t m_height_width_angle_tex_size{ 0 };
+    size_t m_colors_tex_size{ 0 };
+    size_t m_enabled_segments_tex_size{ 0 };
+    size_t m_enabled_options_tex_size{ 0 };
 
     void update_view_full_range();
     void update_color_ranges();
diff --git a/src/slic3r/GUI/GCodeViewer.cpp b/src/slic3r/GUI/GCodeViewer.cpp
index cac423c55b..a6bf493fcf 100644
--- a/src/slic3r/GUI/GCodeViewer.cpp
+++ b/src/slic3r/GUI/GCodeViewer.cpp
@@ -3882,6 +3882,20 @@ void GCodeViewer::render_toolpaths()
 
             ImGui::Separator();
 
+            ImGui::TableNextRow();
+            ImGui::TableSetColumnIndex(0);
+            imgui.text_colored(ImGuiWrapper::COL_ORANGE_LIGHT, "cpu memory");
+            ImGui::TableSetColumnIndex(1);
+            imgui.text(format_memsize(m_viewer.get_used_cpu_memory()));
+
+            ImGui::TableNextRow();
+            ImGui::TableSetColumnIndex(0);
+            imgui.text_colored(ImGuiWrapper::COL_ORANGE_LIGHT, "gpu memory");
+            ImGui::TableSetColumnIndex(1);
+            imgui.text(format_memsize(m_viewer.get_used_gpu_memory()));
+
+            ImGui::Separator();
+
             ImGui::TableNextRow();
             ImGui::TableSetColumnIndex(0);
             imgui.text_colored(ImGuiWrapper::COL_ORANGE_LIGHT, "layers range");