Vertex Descriptor/PlayStation 3
Structures
renderengine::VertexDescriptor
| Offset | Length | Type | Name | Description | Comments |
|---|---|---|---|---|---|
| 0x0 | 0x4 | int32_t | m_refCount | Always 0? | |
| 0x4 | 0x4 | uint32_t | m_typesFlags | Denotes which element types are present | See flags General formula is 1 << elementType for each element, combined with a bitwise OR.
|
| 0x8 | 0x2 | uint16_t | m_numStreams | Number of streams | Always 1? |
| 0xA | 0x2 | uint16_t | m_numElements | Number of elements | Maximum allowed is 16 |
| 0xC | 0x2 | uint16_t | m_frequencyDividerOperation | Frequency divider operation for each element | One bit per element. See operation Always modulo? |
| 0xE | 0x2 | uint16_t | m_pad0 | Padding | |
| 0x10 | 0x8 | Element[1] | m_elements | Elements |
renderengine::VertexDescriptor::Element
| Offset | Length | Type | Name | Description | Comments |
|---|---|---|---|---|---|
| 0x0 | 0x1 | uint8_t | vertexType | Datatype of each coordinate | See vertex type |
| 0x1 | 0x1 | uint8_t | numComponents | Number of components | |
| 0x2 | 0x1 | uint8_t | stream | Stream index | |
| 0x3 | 0x1 | uint8_t | offset | Starting offset of the vertex attribute array | |
| 0x4 | 0x2 | uint16_t | stride | Offset bytes between consecutive vertices | |
| 0x6 | 0x1 | uint8_t | type | Element type | See element type |
| 0x7 | 0x1 | uint8_t | elementClass | Element class | See element class |
The resource always ends with 0xFF00FF0000000000. It is unclear what this is and it does not appear to be pointed to or a part of any other structure.
Enumerations
Type flags
Note that flags do not appear to affect elements in any way.
| Name | Value | Comments |
|---|---|---|
| ELEMENTTYPEFLAG_XYZ | 0x1 | |
| ELEMENTTYPEFLAG_WEIGHTS | 0x2 | |
| ELEMENTTYPEFLAG_NORMAL | 0x4 | |
| ELEMENTTYPEFLAG_VERTEXCOLOR | 0x8 | |
| ELEMENTTYPEFLAG_SPECULAR | 0x10 | |
| ELEMENTTYPEFLAG_INDICES | 0x80 | |
| ELEMENTTYPEFLAG_TEX0 | 0x100 | |
| ELEMENTTYPEFLAG_TEX1 | 0x200 | |
| ELEMENTTYPEFLAG_TEX2 | 0x400 | |
| ELEMENTTYPEFLAG_TEX3 | 0x800 | |
| ELEMENTTYPEFLAG_TEX4 | 0x1000 | |
| ELEMENTTYPEFLAG_TEX5 | 0x2000 | |
| ELEMENTTYPEFLAG_TEX6 | 0x4000 | |
| ELEMENTTYPEFLAG_TANGENT | 0x4000 | |
| ELEMENTTYPEFLAG_TEX7 | 0x8000 | |
| ELEMENTTYPEFLAG_BINORMAL | 0x8000 |
Attributes 5 and 6 (flag values 0x20 and 0x40) are legal values, but they do not have an assigned use on PS3.
Frequency divider operation
From the SCE PS3 SDK.
| Name | Value | Comments |
|---|---|---|
| CELL_GCM_FREQUENCY_DIVIDE | 0 | index = vertex / VertexAttribute.Frequency |
| CELL_GCM_FREQUENCY_MODULO | 1 | index = vertex % VertexAttribute.Frequency |
Vertex type
From the SCE PS3 SDK.
| Name | Value | Comments |
|---|---|---|
| CELL_GCM_VERTEX_S1 | 1 | Use an array of a 16-bit signed integer-type vertex attribute Value normalized to [-1 - 1] will be passed to the vertex shader |
| CELL_GCM_VERTEX_F | 2 | Use an array of a 32-bit float-type vertex attribute Not normalized |
| CELL_GCM_VERTEX_SF | 3 | Use an array of a 16-bit float-type vertex attribute Not normalized |
| CELL_GCM_VERTEX_UB | 4 | Use an array of an 8-bit unsigned integer-type vertex attribute Value normalized to [0 - 1] will be passed to the vertex shader |
| CELL_GCM_VERTEX_S32K | 5 | Use an array of a 16-bit signed integer-type vertex attribute Not normalized |
| CELL_GCM_VERTEX_CMP | 6 | Use an array of a vertex attribute compressed to 32 bits (11:11:10) |
| CELL_GCM_VERTEX_UB256 | 7 | Use an array of an 8-bit unsigned integer-type vertex attribute Not normalized |
renderengine::VertexDescriptor::ElementType
| Name | Platform Name | Value | Comments |
|---|---|---|---|
| ELEMENTTYPE_XYZ | ELEMENTTYPE_PS3ATTRIBUTE0 | 0 | |
| ELEMENTTYPE_WEIGHTS | ELEMENTTYPE_PS3ATTRIBUTE1 | 1 | |
| ELEMENTTYPE_NORMAL | ELEMENTTYPE_PS3ATTRIBUTE2 | 2 | |
| ELEMENTTYPE_VERTEXCOLOR | ELEMENTTYPE_PS3ATTRIBUTE3 | 3 | |
| ELEMENTTYPE_SPECULAR | ELEMENTTYPE_PS3ATTRIBUTE4 | 4 | |
| unassigned | ELEMENTTYPE_PS3ATTRIBUTE5 | 5 | |
| unassigned | ELEMENTTYPE_PS3ATTRIBUTE6 | 6 | |
| ELEMENTTYPE_INDICES | ELEMENTTYPE_PS3ATTRIBUTE7 | 7 | |
| ELEMENTTYPE_TEX0 | ELEMENTTYPE_PS3ATTRIBUTE8 | 8 | |
| ELEMENTTYPE_TEX1 | ELEMENTTYPE_PS3ATTRIBUTE9 | 9 | |
| ELEMENTTYPE_TEX2 | ELEMENTTYPE_PS3ATTRIBUTE10 | 10 | |
| ELEMENTTYPE_TEX3 | ELEMENTTYPE_PS3ATTRIBUTE11 | 11 | |
| ELEMENTTYPE_TEX4 | ELEMENTTYPE_PS3ATTRIBUTE12 | 12 | |
| ELEMENTTYPE_TEX5 | ELEMENTTYPE_PS3ATTRIBUTE13 | 13 | |
| ELEMENTTYPE_TEX6 ELEMENTTYPE_TANGENT |
ELEMENTTYPE_PS3ATTRIBUTE14 | 14 | |
| ELEMENTTYPE_TEX7 ELEMENTTYPE_BINORMAL |
ELEMENTTYPE_PS3ATTRIBUTE15 | 15 | |
| ELEMENTTYPE_MAX | 15 | ||
| ELEMENTTYPE_NUM | 16 | ||
| ELEMENTTYPE_NA | 255 | ||
| ELEMENTTYPE_FORCEENUMSIZEINT | 0x7FFFFFFF |
renderengine::VertexDescriptor::ElementClass
| Name | Value | Comments |
|---|---|---|
| ELEMENTCLASS_NA | 0 | |
| ELEMENTCLASS_PERVERTEX | 1 | |
| ELEMENTCLASS_PERINSTANCE | 2 | |
| ELEMENTCLASS_FORCEENUMSIZEINT | 0x7FFFFFFF |