Difference between revisions of "Breakable (RW Section)"
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m (DK22Pac moved page Mesh Extension (RW Section) to Breakable model (RW Section): "Mesh extension" looks like a very general name. I believe it has it cause it was an unknown section some time.) |
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{{RW Section|Mesh Extension|0x0253F2FD}} | {{RW Section|Mesh Extension|0x0253F2FD}} | ||
| − | ''' | + | '''Breakable model''' is one of Rockstar's [[List of RW section IDs#Rockstar.27s_Custom_Sections|custom sections]] used in [[GTA San Andreas]]. It contains information on how to split breakable objects when they are hit. An object including this section has to be defined in [[object.dat]]. |
| − | The typical location in a SA [[model file|dff]] section hierarchy is ''[[Clump (RW Section)|Clump]] > [[Geometry List (RW Section)|Geometry List]] > [[Geometry (RW Section)|Geometry]] > [[Extension (RW Section)|Extension]] > | + | The typical location in a SA [[model file|dff]] section hierarchy is ''[[Clump (RW Section)|Clump]] > [[Geometry List (RW Section)|Geometry List]] > [[Geometry (RW Section)|Geometry]] > [[Extension (RW Section)|Extension]] > Breakable model. |
==Header== | ==Header== | ||
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There is a ''56 byte'' header which holds information about the amount of data arrays that follow. | There is a ''56 byte'' header which holds information about the amount of data arrays that follow. | ||
| − | 4b - UINT32 - Offset to this data (zero if '' | + | 4b - UINT32 - Offset to this data (zero if ''Breakable model'' is not used) |
4b - UINT32 - Position rule (if 1 then position is calculated relatively to object collision model, if 0 - to clump position) | 4b - UINT32 - Position rule (if 1 then position is calculated relatively to object collision model, if 0 - to clump position) | ||
4b - UINT32 - Vertex Count | 4b - UINT32 - Vertex Count | ||
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==Tools and Scripts== | ==Tools and Scripts== | ||
| − | * {{GTAF|269717|Breakable Objects Export Script}} by {{U|Deniska}}. A script for 3dsMax which allows to export | + | * {{GTAF|269717|Breakable Objects Export Script}} by {{U|Deniska}}. A script for 3dsMax which allows to export Breakable model information to seperate files. |
Revision as of 16:43, 15 December 2014
| {{{NAME}}} | |
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| RenderWare Stream Section | |
| Vendor | {{{VENDORNAME}}} |
| Module | {{{MODULENAME}}} |
| Module ID | 0x{{{MODULEID}}}
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| Identifier | 0x{{{IDENTIFIER}}}
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| Chunk ID | 0x{{{MODULEID}}}{{{IDENTIFIER}}}
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| Versions | All |
| Hierarchy | |
| Parents: None | |
| Children: None | |
| Extensions: None | |
| File Format | |
Breakable model is one of Rockstar's custom sections used in GTA San Andreas. It contains information on how to split breakable objects when they are hit. An object including this section has to be defined in object.dat.
The typical location in a SA dff section hierarchy is Clump > Geometry List > Geometry > Extension > Breakable model.
Header
There is a 56 byte header which holds information about the amount of data arrays that follow.
4b - UINT32 - Offset to this data (zero if Breakable model is not used) 4b - UINT32 - Position rule (if 1 then position is calculated relatively to object collision model, if 0 - to clump position) 4b - UINT32 - Vertex Count 4b - UINT32 - Offset to vertices (unused) 4b - UINT32 - Offset to texture coors (unused) 4b - UINT32 - Offset to vertex colors (unused) 4b - UINT32 - Face Count 4b - UINT32 - Offset to faces (unused) 4b - UINT32 - Offset to material assignments (unused) 4b - UINT32 - Material Count (= Fragment Count) 4b - UINT32 - Offset to textures (unused) 4b - UINT32 - Offset to texture names (unused) 4b - UINT32 - Offset to mask names (unused) 4b - UINT32 - Offset to material properties (unused)
Geometry Data
Vertices: array of [Vertex Count] elements 12b - FLOAT[3] - XYZ UV Coords: array of [Vertex Count] elements 8b - FLOAT[2] - UV Vertex Colors: array of [Vertex Count] elements 4b - BYTE[4] - RGBA Faces: array of [Face Count] elements 6b - UINT16[3] - 3 indices into vertex array Material Assignments: array of [Face Count] elements 2b - UINT16 - Material ID
Material Data
Each polygon group sharing the same material is treated as a separate fragment when the object is split up.
Texture Names: array of [Material Count] elements 32b - CHAR[32] - Texture Name Alpha Names: array of [Material Count] elements 32b - CHAR[32] - Alpha Texture Name Material Properties: array of [Material Count] elements 12b - FLOAT[3] - ambient/specular/diffuse, often 1.0
Tools and Scripts
GTAForums: Breakable Objects Export Script by Deniska. A script for 3dsMax which allows to export Breakable model information to seperate files.
