Difference between revisions of "PSX/HRC"
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| − | == HRC Hierarchy data format == | + | == HRC Hierarchy data format == |
An HRC file is product of the original Playstation Psy-Q 3D development libraries. They describe the bone hierarchy of a 3D model. Most of the time they originally start as a plain text file exported from 3D editing software, or from a 3D file converter. From this they can be "compiled" into binary form more usable for the PSX. | An HRC file is product of the original Playstation Psy-Q 3D development libraries. They describe the bone hierarchy of a 3D model. Most of the time they originally start as a plain text file exported from 3D editing software, or from a 3D file converter. From this they can be "compiled" into binary form more usable for the PSX. | ||
| Line 7: | Line 7: | ||
But I think that since you read this document, you've got some knowledge 'bout 3D models and skeletons. Let's just start, this format's quite simple! ^_^ | But I think that since you read this document, you've got some knowledge 'bout 3D models and skeletons. Let's just start, this format's quite simple! ^_^ | ||
| − | === HRC file format === | + | === HRC file format === |
Since the HRC files are simple plain-text files, you can open them in notepad or any other text editor. Here are the first four bones of "abjb.hrc" (Yuffie's Hierarchy) | Since the HRC files are simple plain-text files, you can open them in notepad or any other text editor. Here are the first four bones of "abjb.hrc" (Yuffie's Hierarchy) | ||
| − | < | + | <nowiki>:HEADER_BLOCK 2 |
| − | :HEADER_BLOCK 2 | + | :SKELETON sd_yufi_sk |
| − | :SKELETON sd_yufi_sk | + | :BONES 24 |
| − | :BONES 24 | + | |
| + | hip | ||
| + | root | ||
| + | 2.9662 | ||
| + | 1 ABJC | ||
| + | |||
| + | chest | ||
| + | hip | ||
| + | 4.0621967 | ||
| + | 1 ABJE | ||
| + | |||
| + | head | ||
| + | chest | ||
| + | 5.017107 | ||
| + | 1 ACAA | ||
| + | |||
| + | joint | ||
| + | head | ||
| + | 3.5236073 | ||
| + | 0 | ||
| + | |||
| + | ribon_a | ||
| + | joint | ||
| + | 8.52051 | ||
| + | 1 ACAF | ||
| + | .... | ||
| + | </nowiki> | ||
| − | + | The other bones look the same as the ones listed here. These are the parts of the file. | |
| − | |||
| − | |||
| − | |||
| − | + | ==== Header ==== | |
| − | |||
| − | |||
| − | |||
| − | + | As most files, also the HRC files have got a kind of header. That are the first three lines. | |
| − | |||
| − | |||
| − | |||
| − | + | <nowiki>:HEADER_BLOCK 2</nowiki> | |
| − | |||
| − | |||
| − | |||
| − | + | This seems to be a simple "ID". As far as I know, this is the first line in all HRCs... | |
| − | |||
| − | |||
| − | |||
| − | ... | ||
| − | |||
| − | + | <nowiki>:SKELETON sd_yufi_sk</nowiki> | |
| − | + | This tells you the name of the skeleton, in our example "sd_yufi_sk". | |
| − | + | <nowiki>:BONES 24</nowiki> | |
| − | < | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
Tells you how much bones are stored in this skeleton. | Tells you how much bones are stored in this skeleton. | ||
| − | ==== Bones ==== | + | ==== Bones ==== |
Every bone consist of 4 Lines, which look like this. Let's first take a look at the lines of the first bone: | Every bone consist of 4 Lines, which look like this. Let's first take a look at the lines of the first bone: | ||
| − | < | + | <font color="GREEN"> First Line: ("hip")</font> |
This is the name of the current bone. | This is the name of the current bone. | ||
| − | < | + | <font color="GREEN">Second Line: ("root")</font> |
This is the name of the parent bone. The parent bone must be already listed above in the skeleton file,or it can be "root" (origin). | This is the name of the parent bone. The parent bone must be already listed above in the skeleton file,or it can be "root" (origin). | ||
| − | < | + | <font color="GREEN">Third Line: ("2.9662")</font> |
That's the Length of the bone. | That's the Length of the bone. | ||
| − | < | + | <font color="GREEN"> Fourth Line #1: ("0") </font> |
| − | Fourth Line #1: ("0") | ||
| − | Fourth Line #2: ("1 ABJC") | + | <font color="GREEN">Fourth Line #2: ("1 ABJC") </font> |
| − | Fourth Line #3: ("2 ABJC ABJD") | + | <font color="GREEN">Fourth Line #3: ("2 ABJC ABJD") </font> |
| − | </ | ||
This line consist of 2 or more different values. First, there is a number telling many RSD files are aligned to this model. If it has no RSD File, the number is 0. If the number is 1, there is a string after the number telling you the name of the Resource Data File (RSD). The RSD file tells you which .p Model to use. | This line consist of 2 or more different values. First, there is a number telling many RSD files are aligned to this model. If it has no RSD File, the number is 0. If the number is 1, there is a string after the number telling you the name of the Resource Data File (RSD). The RSD file tells you which .p Model to use. | ||
| Line 85: | Line 86: | ||
There may be even more than 2 RSD Files on 1 Bone, however this has yet be be seen. | There may be even more than 2 RSD Files on 1 Bone, however this has yet be be seen. | ||
| − | === Notes === | + | === Notes === |
| + | |||
There are no bone angles, just bone lengths. The HRC file only contains hierarchy data. To build a skeleton, animation files are required. | There are no bone angles, just bone lengths. The HRC file only contains hierarchy data. To build a skeleton, animation files are required. | ||
Latest revision as of 05:25, 23 May 2019
HRC Hierarchy data format
An HRC file is product of the original Playstation Psy-Q 3D development libraries. They describe the bone hierarchy of a 3D model. Most of the time they originally start as a plain text file exported from 3D editing software, or from a 3D file converter. From this they can be "compiled" into binary form more usable for the PSX.
On the PC version of Final Fantasy 7, a text HRC file is used to define the skeletal hierarchy of the field models. The Battle Models use the compiled Format.
But I think that since you read this document, you've got some knowledge 'bout 3D models and skeletons. Let's just start, this format's quite simple! ^_^
HRC file format
Since the HRC files are simple plain-text files, you can open them in notepad or any other text editor. Here are the first four bones of "abjb.hrc" (Yuffie's Hierarchy)
:HEADER_BLOCK 2 :SKELETON sd_yufi_sk :BONES 24 hip root 2.9662 1 ABJC chest hip 4.0621967 1 ABJE head chest 5.017107 1 ACAA joint head 3.5236073 0 ribon_a joint 8.52051 1 ACAF ....
The other bones look the same as the ones listed here. These are the parts of the file.
Header
As most files, also the HRC files have got a kind of header. That are the first three lines.
:HEADER_BLOCK 2
This seems to be a simple "ID". As far as I know, this is the first line in all HRCs...
:SKELETON sd_yufi_sk
This tells you the name of the skeleton, in our example "sd_yufi_sk".
:BONES 24
Tells you how much bones are stored in this skeleton.
Bones
Every bone consist of 4 Lines, which look like this. Let's first take a look at the lines of the first bone:
First Line: ("hip")
This is the name of the current bone.
Second Line: ("root")
This is the name of the parent bone. The parent bone must be already listed above in the skeleton file,or it can be "root" (origin).
Third Line: ("2.9662")
That's the Length of the bone.
Fourth Line #1: ("0")
Fourth Line #2: ("1 ABJC")
Fourth Line #3: ("2 ABJC ABJD")
This line consist of 2 or more different values. First, there is a number telling many RSD files are aligned to this model. If it has no RSD File, the number is 0. If the number is 1, there is a string after the number telling you the name of the Resource Data File (RSD). The RSD file tells you which .p Model to use.
There may be even more than 2 RSD Files on 1 Bone, however this has yet be be seen.
Notes
There are no bone angles, just bone lengths. The HRC file only contains hierarchy data. To build a skeleton, animation files are required.
