Subject:
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Re: Ldglite bug report (Was: Portable Ldraw system)
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Newsgroups:
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lugnet.cad.dev
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Date:
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Sat, 24 Aug 2002 00:44:46 GMT
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Viewed:
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2078 times
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In lugnet.cad.dev, Don Heyse writes:
> In lugnet.cad.dev, Jeremy H. Sproat writes:
> > Speaking of lines, when I use -W20 the ends of each line segment is capped
> > by a square which is the same color as the line but 2 or 3 times as wide.
> > The net result is that pieces with many line segments (curves for example)
> > have a very "spiky" look. Is there any way to smooth these out?
> I'm not sure what I can do about that. Opengl only does flat ended wide
> lines, so I draw the endpoints at what should be the appropriate width
> to smooth them out. Apparently your driver draws the points as squares
> instead of circles. I wonder if this is a common problem. Probably,
> since you're using the generic driver...
I tried this on a quasi-high-end machine, same DAT and options, same
results. Here's the l3glite output:
ZClip = (-1000, 4000)
GL_VERSION = 1.2.1
GL_EXTENSIONS = GL_ARB_multitexture GL_ARB_texture_compression GL_ARB_texture_cu
be_map GL_ARB_texture_env_add GL_ARB_transpose_matrix GL_EXT_abgr GL_EXT_bgra GL
_EXT_blend_color GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_verte
x_array GL_EXT_fog_coord GL_EXT_packed_pixels GL_EXT_paletted_texture GL_EXT_poi
nt_parameters GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specu
lar_color GL_EXT_shared_texture_palette GL_EXT_stencil_wrap GL_EXT_texture_compr
ession_s3tc GL_EXT_texture_edge_clamp GL_EXT_texture_env_add GL_EXT_texture_env_
combine GL_EXT_texture_env_dot3 GL_EXT_texture_cube_map GL_EXT_texture_filter_an
isotropic GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_object GL_EX
T_vertex_array GL_EXT_vertex_weighting GL_IBM_texture_mirrored_repeat GL_KTX_buf
fer_region GL_NV_blend_square GL_NV_fence GL_NV_fog_distance GL_NV_light_max_exp
onent GL_NV_register_combiners GL_NV_texgen_emboss GL_NV_texgen_reflection GL_NV
_texture_env_combine4 GL_NV_vertex_array_range GL_S3_s3tc GL_SGIS_multitexture G
L_SGIS_texture_lod GL_WIN_swap_hint WGL_EXT_swap_control GL_Autodesk_valid_back_
buffer_hint
GL_VENDOR ='NVIDIA Corporation'
GL_RENDERER ='GeForce2 GTS/PCI/3DNOW!'
GL_RGBA_BITS: (8, 8, 8, 8)
GL_DEPTH_BITS = 24
GL_STENCIL_BITS = 0
The GL_KTX_buffer_region extension is available
The GL_KTX_f1 = 06E24480
The GL_KTX_f2 = 06E24590
The GL_KTX_f3 = 06E24BC0
The GL_KTX_f4 = 06E252A0
The GL_KTX_f5 = 06E25810
glBufferRegionEnabled() = 1
Stencil buffer disabled for XOR with NVIDIA driver.
Buffer Swap Mode = 4
Generating 6400 by 4800 image file...
etc...
Cheers,
- jsproat
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Message has 1 Reply:
 | | Re: Ldglite bug report (Was: Portable Ldraw system)
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| (...) I applied the fix Travis pointed out, and it seems to smooth out some of the bumpies in antialiased mode with wide lines on my PC. Give it a try: http:\\ldglite.sourc...e_test.zip I also noticed that the opengl drivers seem to top out their (...) (22 years ago, 24-Aug-02, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Ldglite bug report (Was: Portable Ldraw system)
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| (...) I try to think of the -a as a rotation matrix for the model, whereas the -cc stuff is a manipulation of the view matrix. Unfortunately the LDRAW default -a matrix "squishes" the model as if it were a view matrix. I guess this is because the (...) (22 years ago, 23-Aug-02, to lugnet.cad.dev)
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