WesHowe at 22:41, 19 January 2009

2009-01-19T22:41:04Z

New page

copied from: http://www.customsims3.com/forum1/YaBB.pl?num=1214408105
<pre>
// Header:
// DWord Version == 7 or 8;
// DWord float_count [Big Endian]
// float_count floats (float_count*4 bytes) [purpose unknown]
// DWord [purpose unknown]
// float array[7] [quaternion + position data]
// DWord [purpose unknown] (not present in vers. 8)
//
// Faces:
// DWord group_count [number of face groups]
// for each of group_count:
// DWord type_value [type value = 4L]
// DWord facect [face point count (triangle faces * 3)]
// DWord type_value_b [type value = 0x10L]
// DWord facebytes [face section byte count (faces * 3 * sizeof(word))]
// Word point_array[facect] [the vertex indices for each triangle point]
// there is only one vertex pool, so the index value of groups subsequent
// to the first start at offsets > 0.
//
// Vertex Format
//
// DWord section_type [section type = 1L]
// DWord VFmtCount [number of data sets]
// for each of VFmtCount:
// Word pad [pad word, zero]
// Word offset [offset of field in each vertex data]
// Word ftype [field type]
// bit 2 (0x04) indicates a short count
// bits 0 and 1 are the count, minus one
// so 0x00 is one long or float, 0x01 is two longs, 0x02 is three longs, 0c03 is four longs
// and 0x04 is one short, 0x05 two shorts, 0x06 three shorts and 0x07 is four shorts
// Word pad2 [pad word, zero]
// DWord data_type [field data type]
// known types, and usual sizes, are:
// 0x00 vertex (three floats)
// 0x02 normal (three floats)
// 0x06 UV (two floats)
// 0x0E bone assignments (four words)
// 0x0F skin weights (four floats)
// 0x13 bumpmap normals (three floats)
//
// the last four bytes or the vertex format are arranged thus:
// DWord terminator1 [terminator, usually one]
// DWord terminator2 [terminator, usually zero]
// these may be a section_type with zero sets, indicating multiple lists may
// be possible, but I had no examples of multiple vertex formats
//
// Vertex Data Pool
//
// DWord VertexCount [number of vertices in pool]
// DWord poolsize [vertex bytes pool size, must equal VertexSize (from vertex format data) * VertexCount]
// Byte vdata[poolsize]
// the arrangement of the bytes in the vertex pool are given by the vertex format.
// thus, the pool is an array of data structures described by the vertex format.
//
// remainder of file: purpose unknown
</pre>

Spore:00E6BCE5 - Revision history

WesHowe at 22:41, 19 January 2009