OpenSCAD Version: 2020.12-RC2
System information: Windows(TM) 6.1 SP 1.0 NTW 1 MSDN 724833 4 CPUs 7.80 GB RAM
User Agent: OpenSCAD/2020.12-RC2 (Windows(TM) 6.1 SP 1.0 NTW 1 MSDN 724833)
Compiler: GCC "7.4.0" 64bit
MinGW build: MingW64
Debug build: No
Boost version: 1_60
Eigen version: 3.3.7
CGAL version, kernels: 4.11, Cartesian, Extended_cartesian, Epeck
OpenCSG version: unknown, 
Qt version: 5.13.0
QScintilla version: 2.11.2
InputDrivers: 
GLib version: 2.50.2
lodepng version: 20180910
libzip version: 1.5.2
fontconfig version: 2.13.1
freetype version: 2.10.1
harfbuzz version: 2.4.0
cairo version: 1.16.0
lib3mf version: 1.8.0
Features: input-driver-dbus, lazy-union
Application Path: C:/Program Files/OpenSCAD
Documents Path: C:\Users\Bob\Documents
User Documents Path: C:\Users\Bob\Documents
Resource Path: C:/Program Files/OpenSCAD
User Library Path: C:/Users/Bob/Documents/OpenSCAD/libraries
User Config Path: C:\Users\Bob\AppData\Local/OpenSCAD
Backup Path: C:/Users/Bob/Documents/OpenSCAD/backups
OPENSCADPATH: 
OpenSCAD library path:
C:/Users/Bob/Documents/OpenSCAD/libraries
C:/Program Files/OpenSCAD\libraries

OPENSCAD_FONT_PATH: 
OpenSCAD font path:
C:/Windows/fonts
C:/Users/Bob/.local/share/fonts
C:/Users/Bob/.fonts
GLEW version: 1.12.0
OpenGL Version: 2.1.0 - Build 8.15.10.2622
GL Renderer: Intel(R) HD Graphics
GL Vendor: Intel
RGBA(8888), depth(24), stencil(8)
GL_ARB_framebuffer_object: yes
GL_EXT_framebuffer_object: yes
GL_EXT_packed_depth_stencil: yes

Qt graphics widget: QGLWidgetGL Extensions:
GL_3DFX_texture_compression_FXT1
GL_ARB_color_buffer_float
GL_ARB_compatibility
GL_ARB_copy_buffer
GL_ARB_depth_buffer_float
GL_ARB_depth_clamp
GL_ARB_depth_texture
GL_ARB_draw_buffers
GL_ARB_draw_elements_base_vertex
GL_ARB_draw_instanced
GL_ARB_fragment_program
GL_ARB_fragment_program_shadow
GL_ARB_fragment_shader
GL_ARB_framebuffer_object
GL_ARB_framebuffer_sRGB
GL_ARB_half_float_pixel
GL_ARB_half_float_vertex
GL_ARB_map_buffer_range
GL_ARB_multitexture
GL_ARB_occlusion_query
GL_ARB_pixel_buffer_object
GL_ARB_point_parameters
GL_ARB_point_sprite
GL_ARB_sampler_objects
GL_ARB_seamless_cube_map
GL_ARB_shader_objects
GL_ARB_shading_language_100
GL_ARB_shadow
GL_ARB_sync
GL_ARB_texture_border_clamp
GL_ARB_texture_compression
GL_ARB_texture_compression_rgtc
GL_ARB_texture_cube_map
GL_ARB_texture_env_add
GL_ARB_texture_env_combine
GL_ARB_texture_env_crossbar
GL_ARB_texture_env_dot3
GL_ARB_texture_float
GL_ARB_texture_non_power_of_two
GL_ARB_texture_rectangle
GL_ARB_texture_rg
GL_ARB_transpose_matrix
GL_ARB_uniform_buffer_object
GL_ARB_vertex_array_bgra
GL_ARB_vertex_array_object
GL_ARB_vertex_buffer_object
GL_ARB_vertex_program
GL_ARB_vertex_shader
GL_ARB_window_pos
GL_ATI_separate_stencil
GL_EXT_abgr
GL_EXT_bgra
GL_EXT_blend_color
GL_EXT_blend_equation_separate
GL_EXT_blend_func_separate
GL_EXT_blend_minmax
GL_EXT_blend_subtract
GL_EXT_clip_volume_hint
GL_EXT_compiled_vertex_array
GL_EXT_draw_buffers2
GL_EXT_draw_range_elements
GL_EXT_fog_coord
GL_EXT_framebuffer_blit
GL_EXT_framebuffer_object
GL_EXT_gpu_program_parameters
GL_EXT_multi_draw_arrays
GL_EXT_packed_depth_stencil
GL_EXT_packed_float
GL_EXT_packed_pixels
GL_EXT_rescale_normal
GL_EXT_secondary_color
GL_EXT_separate_specular_color
GL_EXT_shadow_funcs
GL_EXT_stencil_two_side
GL_EXT_stencil_wrap
GL_EXT_texture3D
GL_EXT_texture_array
GL_EXT_texture_compression_s3tc
GL_EXT_texture_edge_clamp
GL_EXT_texture_env_add
GL_EXT_texture_env_combine
GL_EXT_texture_filter_anisotropic
GL_EXT_texture_lod_bias
GL_EXT_texture_rectangle
GL_EXT_texture_sRGB
GL_EXT_texture_shared_exponent
GL_EXT_texture_snorm
GL_EXT_texture_swizzle
GL_EXT_transform_feedback
GL_IBM_texture_mirrored_repeat
GL_INTEL_performance_queries
GL_NV_blend_square
GL_NV_conditional_render
GL_NV_primitive_restart
GL_NV_texgen_reflection
GL_SGIS_generate_mipmap
GL_SGIS_texture_edge_clamp
GL_SGIS_texture_lod
GL_WIN_swap_hint