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- 3. _K_n_o_w_n__P_r_o_b_l_e_m_s__a_n_d__W_o_r_k_a_r_o_u_n_d_s
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- +o _A_l_i_a_s _t_o _O_p_e_n _I_n_v_e_n_t_o_r _T_r_a_n_s_l_a_t_o_r _L_i_m_i_t_a_t_i_o_n_s: Only
- Alias wire files, versions 5.0, 5.0.1, 5.1, and 5.1.1
- are supported. Every texture map is assumed to be a
- color texture map. Only the first texture attached to
- a shader is converted. Procedural textures are not
- converted. Only the first shader attached to a surface
- or face is converted. If a surface or face was linked
- to an exclusive light it will be illuminated by both
- that light and all non-exclusive lights. Area lights
- and linear lights are not converted.
-
- +o _D_X_F _t_o _O_p_e_n _I_n_v_e_n_t_o_r _T_r_a_n_s_l_a_t_o_r _L_i_m_i_t_a_t_i_o_n_s: Only DXF
- R12 files are supported. 16-bit (BIGFONT) shape data,
- including Kanji Text, is not handled. Some Intergraph
- Microstation DXF files are not completely handled,
- especially if containing "exploded" views. Non-
- standard DXF files may not be handled properly. The
- translator is written to convert AutoCAD DXF files as
- ouput by AutoCAD and does not handle every possible DXF
- file. Problems are handled by: layer names with spaces,
- missing header information, decimal points in integer
- fields, etc.
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- +o _S_o_f_t_i_m_a_g_e _t_o _O_p_e_n _I_n_v_e_n_t_o_r _T_r_a_n_s_l_a_t_o_r _L_i_m_i_t_a_t_i_o_n_s:
- Only Softimage version 2.6 .hrc files are supported.
- The triangulation algorithm still sometimes produces
- small or thin triangles which generate GL errors.
- However, the errors are often not visually discernable.
- There is a difference between how offset looks in
- Softimage and Open Inventor. In Softimage, the base
- material shows through when the texture coordinates are
- off the texture map. In Open Inventor, the row of
- pixels on the boundary is repeated to the edge of the
- object. This may result in streaks. The texture can be
- repeated but it cannot flip orientation while it is
- being repeated. Spherical and Cylindrical textures may
- not translate well. In some situations, importing an
- object into an existing Open Inventor scene will not
- work correctly when using a bounding box to place and
- scale the imported object. In these situations, try
- using the '-i' option to the translator.
-
- +o _O_b_j _t_o _O_p_e_n _I_n_v_e_n_t_o_r _T_r_a_n_s_l_a_t_o_r _L_i_m_i_t_a_t_i_o_n_s: Only Obj
- versions 3.0 and 4.0 files are supported.
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- +o _O_p_e_n _I_n_v_e_n_t_o_r _t_o _R_e_n_d_e_r_m_a_n _T_r_a_n_s_l_a_t_o_r _L_i_m_i_t_a_t_i_o_n_s:
- Translation is supported between Open Inventor 2.0 and
- Renderman 3.0.3 only. Translation of Open Inventor
- text is not supported.
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