rotate_extrude() preview question

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rotate_extrude() preview question

Mekko
Maybe this is an old issue but this code previews incorrectly in Version 2015.03:

intersection() {
    cube(size=[100, 100, 100]);
    rotate_extrude(convexity=10) translate(v=[40,0,0]) circle(d=10);
}

But changing convexity to 1 previews just fine (and 1 seems to be the only value that works). Am I doing something wrong?

Thanks!


tp3
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Re: rotate_extrude() preview question

tp3
On 03/15/2015 08:44 PM, Mekko wrote:

> Maybe this is an old issue but this code previews incorrectly in Version
> 2015.03:
>
> intersection() {
>      cube(size=[100, 100, 100]);
>      rotate_extrude(convexity=10) translate(v=[40,0,0]) circle(d=10);
> }
>
> But changing convexity to 1 previews just fine (and 1 seems to be the only
> value that works). Am I doing something wrong?
>
That could be some problem with the graphics driver. I'm not seeing any
problems here (Linux / NVidia / nouveau driver).

With convexity = 1, there's some small places where it does not draw
correctly, with > 3 it's without any display errors.

Can you post the output from the Help->Library Info dialog?

ciao,
   Torsten.


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Re: rotate_extrude() preview question

Mekko
I'm running the 32-bit Windows release on an older Windows 7 SP1 machine (Intel dual core E7500 at 2.93GHz with 3GB of RAM).

Here's the output from Help->Library Info:
OpenSCAD Version: 2015.03
System information: Windows 7 SP1 (v6.1.1.0) 2 CPUs 2.97 GB RAM
Compiler, build date: GCC "4.9.2" 32bit, Mar 10 2015
Boost version: 1_57
Eigen version: 3.2.2
CGAL version, kernels: 4.5, Cartesian, Extended_cartesian, Epeck
OpenCSG version: OpenCSG 1.3.2
Qt version: 5.4.0
QScintilla version: 2.8.4
MingW build: MingW32
GLib version: 2.42.1
...

OPENSCAD_FONT_PATH:
OpenSCAD font path:
GLEW version: 1.11.0
OpenGL Version: 2.1.0 - Build 8.15.10.2302
GL Renderer: Intel(R) G45/G43 Express Chipset
GL Vendor: Intel
RGBA(8888), depth(24), stencil(8)
GL_ARB_framebuffer_object: no
GL_EXT_framebuffer_object: yes
GL_EXT_packed_depth_stencil: yes

Using QGLWidget

GL Extensions:
GL_3DFX_texture_compression_FXT1
GL_ARB_color_buffer_float
GL_ARB_depth_buffer_float
GL_ARB_depth_texture
GL_ARB_draw_buffers
GL_ARB_draw_instanced
GL_ARB_fragment_program
GL_ARB_fragment_shader
GL_ARB_framebuffer_sRGB
GL_ARB_half_float_pixel
GL_ARB_half_float_vertex
GL_ARB_multitexture
GL_ARB_occlusion_query
GL_ARB_pixel_buffer_object
GL_ARB_point_parameters
GL_ARB_point_sprite
GL_ARB_shader_objects
GL_ARB_shading_language_100
GL_ARB_shadow
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_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_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_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_swizzle
GL_EXT_transform_feedback
GL_IBM_texture_mirrored_repeat
GL_NV_blend_square
GL_NV_conditional_render
GL_NV_texgen_reflection
GL_SGIS_generate_mipmap
GL_SGIS_texture_edge_clamp
GL_SGIS_texture_lod
GL_WIN_swap_hint