[OpenSCAD] Severe lag when rotating model in viewing area

leebc leebc11 at acm.org
Wed Oct 12 19:17:52 EDT 2016


Thanks MichaelAtOz.  I'm subscribing to the mailing list now.

I have heard people complaining about  Intel graphics in the past, but I was
hoping that Intel providing drivers would help in this case.  The laptop was
free, so I can only complain a little.


I did try changing the Force Goldfeather and Enable for OpenGL 1.x options a
few  days ago, but it didn't seem to help.  I'll try it again.

Here's my Help/Library-info

OpenSCAD Version: 2015.03-1
System information: Linux 4.4.0-42-generic #62-Ubuntu SMP Fri Oct 7 23:10:22
UTC 2016 i686 Ubuntu 16.04.1 LTS 2 CPUs 16777216.00 TB RAM
Compiler: GCC "5.2.1 20151028" 32bit
Boost version: 1_58
Eigen version: 3.2.5
CGAL version, kernels: 4.7, Cartesian, Extended_cartesian, Epeck
OpenCSG version: OpenCSG 1.4.0
Qt version: 5.5.1
QScintilla version: 2.9.1
MingW build: No
GLib version: 2.47.1
Application Path: /usr/bin
Documents Path: /home/leebc/.local/share
Resource Path: /usr/share/openscad
User Library Path: /home/leebc/.local/share/OpenSCAD/libraries
User Config Path: /home/leebc/.config/OpenSCAD
Backup Path: /home/leebc/.local/share/OpenSCAD/backups
OPENSCADPATH: 
OpenSCAD library path:
/home/leebc/.local/share/OpenSCAD/libraries
/usr/share/openscad/libraries

OPENSCAD_FONT_PATH: 
OpenSCAD font path:
GLEW version: 1.13.0
OpenGL Version: 2.1 Mesa 11.2.0
GL Renderer: Mesa DRI Mobile Intel® GM45 Express Chipset x86/MMX/SSE2
GL Vendor: Intel Open Source Technology Center
RGBA(8880), depth(24), stencil(8)
GL_ARB_framebuffer_object: yes
GL_EXT_framebuffer_object: yes
GL_EXT_packed_depth_stencil: yes

Using QGLWidget

GL Extensions:
GL_3DFX_texture_compression_FXT1
GL_AMD_seamless_cubemap_per_texture
GL_AMD_shader_trinary_minmax
GL_ANGLE_texture_compression_dxt3
GL_ANGLE_texture_compression_dxt5
GL_APPLE_object_purgeable
GL_APPLE_packed_pixels
GL_APPLE_vertex_array_object
GL_ARB_ES2_compatibility
GL_ARB_arrays_of_arrays
GL_ARB_buffer_storage
GL_ARB_clear_buffer_object
GL_ARB_clear_texture
GL_ARB_clip_control
GL_ARB_color_buffer_float
GL_ARB_compressed_texture_pixel_storage
GL_ARB_copy_buffer
GL_ARB_copy_image
GL_ARB_debug_output
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_explicit_attrib_location
GL_ARB_explicit_uniform_location
GL_ARB_fragment_coord_conventions
GL_ARB_fragment_program
GL_ARB_fragment_program_shadow
GL_ARB_fragment_shader
GL_ARB_framebuffer_object
GL_ARB_framebuffer_sRGB
GL_ARB_get_program_binary
GL_ARB_get_texture_sub_image
GL_ARB_half_float_pixel
GL_ARB_half_float_vertex
GL_ARB_instanced_arrays
GL_ARB_internalformat_query
GL_ARB_invalidate_subdata
GL_ARB_map_buffer_alignment
GL_ARB_map_buffer_range
GL_ARB_multi_bind
GL_ARB_multisample
GL_ARB_multitexture
GL_ARB_occlusion_query
GL_ARB_occlusion_query2
GL_ARB_pipeline_statistics_query
GL_ARB_pixel_buffer_object
GL_ARB_point_parameters
GL_ARB_point_sprite
GL_ARB_program_interface_query
GL_ARB_provoking_vertex
GL_ARB_robustness
GL_ARB_sampler_objects
GL_ARB_seamless_cube_map
GL_ARB_seamless_cubemap_per_texture
GL_ARB_separate_shader_objects
GL_ARB_shader_bit_encoding
GL_ARB_shader_draw_parameters
GL_ARB_shader_objects
GL_ARB_shader_texture_lod
GL_ARB_shading_language_100
GL_ARB_shadow
GL_ARB_sync
GL_ARB_texture_barrier
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_mirror_clamp_to_edge
GL_ARB_texture_mirrored_repeat
GL_ARB_texture_non_power_of_two
GL_ARB_texture_rectangle
GL_ARB_texture_rg
GL_ARB_texture_rgb10_a2ui
GL_ARB_texture_storage
GL_ARB_texture_swizzle
GL_ARB_transpose_matrix
GL_ARB_vertex_array_bgra
GL_ARB_vertex_array_object
GL_ARB_vertex_attrib_binding
GL_ARB_vertex_buffer_object
GL_ARB_vertex_program
GL_ARB_vertex_shader
GL_ARB_vertex_type_10f_11f_11f_rev
GL_ARB_vertex_type_2_10_10_10_rev
GL_ARB_window_pos
GL_ATI_blend_equation_separate
GL_ATI_draw_buffers
GL_ATI_separate_stencil
GL_ATI_texture_env_combine3
GL_ATI_texture_float
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_compiled_vertex_array
GL_EXT_copy_texture
GL_EXT_draw_buffers2
GL_EXT_draw_instanced
GL_EXT_draw_range_elements
GL_EXT_fog_coord
GL_EXT_framebuffer_blit
GL_EXT_framebuffer_object
GL_EXT_framebuffer_sRGB
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_pixel_buffer_object
GL_EXT_point_parameters
GL_EXT_polygon_offset
GL_EXT_polygon_offset_clamp
GL_EXT_provoking_vertex
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_subtexture
GL_EXT_texture
GL_EXT_texture3D
GL_EXT_texture_array
GL_EXT_texture_compression_dxt1
GL_EXT_texture_compression_rgtc
GL_EXT_texture_cube_map
GL_EXT_texture_edge_clamp
GL_EXT_texture_env_add
GL_EXT_texture_env_combine
GL_EXT_texture_env_dot3
GL_EXT_texture_filter_anisotropic
GL_EXT_texture_integer
GL_EXT_texture_lod_bias
GL_EXT_texture_object
GL_EXT_texture_rectangle
GL_EXT_texture_sRGB
GL_EXT_texture_sRGB_decode
GL_EXT_texture_shared_exponent
GL_EXT_texture_snorm
GL_EXT_texture_swizzle
GL_EXT_vertex_array
GL_EXT_vertex_array_bgra
GL_IBM_multimode_draw_arrays
GL_IBM_rasterpos_clip
GL_IBM_texture_mirrored_repeat
GL_INGR_blend_func_separate
GL_KHR_context_flush_control
GL_KHR_debug
GL_MESA_pack_invert
GL_MESA_texture_signed_rgba
GL_MESA_window_pos
GL_NV_blend_square
GL_NV_conditional_render
GL_NV_depth_clamp
GL_NV_light_max_exponent
GL_NV_packed_depth_stencil
GL_NV_primitive_restart
GL_NV_texgen_reflection
GL_NV_texture_barrier
GL_NV_texture_env_combine4
GL_NV_texture_rectangle
GL_OES_EGL_image
GL_OES_read_format
GL_S3_s3tc
GL_SGIS_generate_mipmap
GL_SGIS_texture_border_clamp
GL_SGIS_texture_edge_clamp
GL_SGIS_texture_lod
GL_SUN_multi_draw_arrays



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