Reference:Mesh2 - Revision history

Clipka: indexentry fix

2016-05-03T23:24:31Z

indexentry fix

Jholsenback: clarification

2013-12-07T15:56:20Z

clarification

Chrisc: Indexentry fixes

2013-02-11T05:45:49Z

Indexentry fixes

Jholsenback: 1 revision: Reference Migration Initial Load

2012-03-15T19:07:30Z

1 revision: Reference Migration Initial Load

Jholsenback: 1 revision: Initial Load (TF)

2012-03-11T22:27:04Z

1 revision: Initial Load (TF)

New page

[[Category:Objects]]
[[Category:Finite Patch Primitives]]
{{#indexentry:vertex_vectors, normal_vectors, uv_vectors}}
{{#indexentry:face_indices, normal_indices, uv_indices, texture-list}}
{{#indexentry:mesh2, keyword}}
{{#indexentry:keyword, mesh2}}
{{#indexentry:vertex_vectors, mesh2}}
{{#indexentry:keyword, vertex_vectors}}
{{#indexentry:normal_vectors, mesh2}}
{{#indexentry:keyword, normal_vectors}}
{{#indexentry:uv_vectors, mesh2}}
{{#indexentry:keyword, uv_vectors}}
{{#indexentry:texture_list, mesh2}}
{{#indexentry:keyword, texture_list}}
{{#indexentry:face_indices, mesh2}}
{{#indexentry:keyword, face_indices}}
{{#indexentry:normal_indices, mesh2}}
{{#indexentry:keyword, normal_indices}}
{{#indexentry:uv_indices, mesh2}}
{{#indexentry:keyword, uv_indices}}
{{#indexentry:inside_vector, mesh2}}
{{#indexentry:keyword, inside_vector}}
The new mesh syntax is designed for use in conversion from other file formats.

<pre>
MESH2 :
mesh2{
VECTORS...
LISTS... |
INDICES... |
MESH_MODIFIERS
}
VECTORS :
vertex_vectors {
number_of_vertices,
<vertex1>, <vertex2>, ...
}|
normal_vectors {
number_of_normals,
<normal1>, <normal2>, ...
}|
uv_vectors {
number_of_uv_vectors,
<uv_vect1>, <uv_vect2>, ...
}
LISTS :
texture_list {
number_of_textures,
texture { Texture1 },
texture { Texture2 }, ...
}|
INDICES :
face_indices {
number_of_faces,
<index_a, index_b, index_c> [,texture_index [,
texture_index, texture_index]],
<index_d, index_e, index_f> [,texture_index [,
texture_index, texture_index]],
...
}|
normal_indices {
number_of_faces,
<index_a, index_b, index_c>,
<index_d, index_e, index_f>,
...
}|
uv_indices {
number_of_faces,
<index_a, index_b, index_c>,
<index_d, index_e, index_f>,
...
}
MESH_MODIFIER :
inside_vector <direction> | OBJECT_MODIFIERS
</pre>

The <code>mesh2</code> object definition MUST be specified in the following order:
<ul>
<li>VECTORS</li>
<li>LISTS</li>
<li>INDICES</li>
</ul>

The <code>normal_vectors</code>, <code>uv_vectors</code>, and <code>texture_list</code> sections are optional.
If the number of normals equals the number of vertices then the normal_indices section is optional and the indexes from the <code>face_indices</code> section are used instead. Likewise for the <code>uv_indices</code> section.
Note: The <code>texture_list</code> section is optional only if <code>face_indices</code> doesn't contain any texture index values.
For example:
<pre>
face_indices {
number_of_faces,
<index_a, index_b, index_c>,
<index_d, index_e, index_f>,
...
}
</pre>
Note: The numbers of <code>uv_indices</code> must equal number of faces.
The indexes are zero based, so the first item in each list has an index of zero.

==Smooth and Flat triangles in the same mesh==
You can specify both flat and smooth triangles in the same mesh. To do this, specify
the smooth triangles first in the <code>face_indices</code>
section, followed by the flat triangles. Then, specify normal indices (in the
<code>normal_indices</code> section) for only the
smooth triangles. Any remaining triangles that do not have normal indices associated with
them will be assumed to be flat triangles.

==Mesh Triangle Textures==
To specify a texture for an individual mesh triangle, specify a single integer texture
index following the face-index vector for that triangle.

To specify three textures for vertex-texture interpolation, specify three integer
texture indices (separated by commas) following the face-index vector for that triangle.

Vertex-texture interpolation and textures for an individual triangle can be mixed in the same mesh.

@@ Line 1: / Line 1: @@
 [[Category:Objects]]
 [[Category:Finite Patch Primitives]]
-{{#indexentry:vertex_vectors|normal_vectors|uv_vectors}}
+{{#indexentry:vertex_vectors}}
-{{#indexentry:face_indices|normal_indices|uv_indices|texture-list}}
+{{#indexentry:normal_vectors}}
 {{#indexentry:mesh2, keyword}}
 {{#indexentry:keyword, mesh2}}

@@ Line 74: / Line 74: @@
 </pre>
-<p>The <code>mesh2</code> object definition <em>MUST</em> be specified in the following order:</p>
+<p>Best practices dictate that the <code>mesh2</code> object definition <em>SHOULD</em> be specified in the following order:</p>
 <ul>
 <li>VECTORS</li>
@@ Line 80: / Line 80: @@
 <li>INDICES</li>
 </ul>
+<p>However, the actual implementation also allows the <code>texture_list</code> to be placed <em>BEFORE</em> <code>vertex_vectors</code>.</p>
 <p>The <code>normal_vectors</code>, <code>uv_vectors</code>, and <code>texture_list</code> sections are optional.
 If the number of normals equals the number of vertices then the normal_indices section is optional and the indexes from the <code>face_indices</code> section are used instead. Likewise for the <code>uv_indices</code> section.</p>

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