Structures

renderengine::VertexDescriptor

Offset	Length	Type	Name	Description	Comments
0x0	0x4	int32_t	m_refCount		Always 0?
0x4	0x4	uint32_t	m_typesFlags	Type flags	Bits are set by indexed usage of each element (1 << usage index)
0x8	0x2	uint16_t	m_numElements	Number of elements
0xA	0x1	uint8_t	?		Always 1?
0xB	0x5			Padding
0x10	0x10	Element[1]	m_elements	Elements

renderengine::VertexDescriptor::Element

Offset	Length	Type	Name	Description	Comments
0x0	0xB	D3DVERTEXELEMENT9	?	Vertex elements
0xB	0x1	uint8_t	?	Indexed usage	See indexed usage
0xC	0x4	uint32_t	elementClass	Element class	Always 1? See element class

D3DVERTEXELEMENT9

From the MS Learn page.

Offset	Length	Type	Name	Description	Comments
0x0	0x2	WORD	Stream	Stream number.
0x2	0x2	WORD	Offset	Offset (if any) from the beginning of the stream to the start of the data.
0x4	0x4	DWORD	Type	Data type. One of several predefined types that define the data size.	See D3DDECLTYPE
0x8	0x1	BYTE	Method	Tessellation method.	Always D3DDECLMETHOD_DEFAULT. See D3DDECLMETHOD
0x9	0x1	BYTE	Usage	Defines the intended use of the data.	D3DDECLUSAGE
0xA	0x1	BYTE	UsageIndex	Modifies the usage data to allow the user to specify multiple usage types.

Vertex size array

Following the rest of the resource is an array of bytes of the same length as the number of elements. They represent the vertex sizes.

Enumerations

D3DDECLTYPE

From the Microsoft Xbox 360 SDK and Burnout Paradise (2008-01-30 build)'s XDBs.

Name	Value	Comments
D3DDECLTYPE_FLOAT1	0x2C83A4	1D float expanded to (value, 0, 0, 1).
D3DDECLTYPE_FLOAT2	0x2C23A5	2D float expanded to (value, value, 0, 1).
D3DDECLTYPE_FLOAT3	0x2A23B9	3D float expanded to (value, value, value, 1).
D3DDECLTYPE_FLOAT4	0x1A23A6	4D float expanded to (value, value, value, value).
D3DDECLTYPE_INT1	0x2C83A1	1D signed int expanded to (value, 0, 0, 1).
D3DDECLTYPE_INT2	0x2C23A2	2D signed int expanded to (value, value, 0, 1).
D3DDECLTYPE_INT4	0x1A23A3	4D signed int expanded to (value, value, value, value).
D3DDECLTYPE_UINT1	0x2C82A1	1D unsigned int expanded to (value, 0, 0, 1).
D3DDECLTYPE_UINT2	0x2C22A2	2D unsigned int expanded to (value, value, 0, 1).
D3DDECLTYPE_UINT4	0x1A22A3	4D unsigned int expanded to (value, value, value, value).
D3DDECLTYPE_INT1N	0x2C81A1	Normalized, 1D signed int expanded to (value/0x7fffffff, 0, 0, 1).
D3DDECLTYPE_INT2N	0x2C21A2	Normalized, 2D signed int expanded to (value/0x7fffffff, value/0x7fffffff, 0, 1).
D3DDECLTYPE_INT4N	0x1A21A3	Normalized, 4D signed int expanded to (value/0x7fffffff, value/0x7fffffff, value/0x7fffffff, value/0x7fffffff).
D3DDECLTYPE_UINT1N	0x2C80A1	Normalized, 1D unsigned int expanded to (value/0xffffffff, 0, 0, 1).
D3DDECLTYPE_UINT2N	0x2C20A2	Normalized, 2D unsigned int expanded to (value/0xffffffff, value/0xffffffff, 0, 1).
D3DDECLTYPE_UINT4N	0x1A20A3	Normalized, 4D unsigned int expanded to (value/0xffffffff, value/0xffffffff, value/0xffffffff, value/0xffffffff).
D3DDECLTYPE_D3DCOLOR	0x182886	4D packed unsigned bytes mapped to 0 to 1 range. Input is in D3DCOLOR format (ARGB) expanded to (r, g, b, a).
D3DDECLTYPE_UBYTE4	0x1A2286	4D unsigned byte. See (U)BYTE4(N) format for details.
D3DDECLTYPE_BYTE4	0x1A2386	4D signed byte. See (U)BYTE4(N) format for details.
D3DDECLTYPE_UBYTE4N	0x1A2086	Each of 4 bytes is normalized by dividing by 255.0. See (U)BYTE4(N) format for details.
D3DDECLTYPE_BYTE4N	0x1A2186	Normalized, 4D signed byte. Each of the 4 bytes are normalized by dividing by 127.0. See (U)BYTE4(N) format for details.
D3DDECLTYPE_SHORT2	0x2C2359	2D signed short expanded to (value, value, 0, 1).
D3DDECLTYPE_SHORT4	0x1A235A	4D signed short expanded to (value, value, value, value).
D3DDECLTYPE_USHORT2	0x2C2259	2D unsigned short expanded to (value, value, 0, 1).
D3DDECLTYPE_USHORT4	0x1A225A	4D unsigned short expanded to (value, value, value, value).
D3DDECLTYPE_SHORT2N	0x2C2159	Normalized, 2D signed short, expanded to (value/32767.0, value/32767.0, 0, 1).
D3DDECLTYPE_SHORT4N	0x1A215A	Normalized, 4D signed short, expanded to (value/32767.0, value/32767.0, value/32767.0, value/32767.0).
D3DDECLTYPE_USHORT2N	0x2C2059	Normalized, 2D unsigned short, expanded to (value/65535.0, value/65535.0, 0, 1).
D3DDECLTYPE_USHORT4N	0x1A205A	Normalized 4D unsigned short, expanded to (value/65535.0, value/65535.0, value/65535.0, value/65535.0).
D3DDECLTYPE_UDEC3	0x2A2287	3D unsigned 10 10 10 format expanded to (value, value, value, 1). See (U)DEC3(N) format for details.
D3DDECLTYPE_DEC3	0x2A2387	3D signed 10 10 10 format expanded to (value, value, value, 1). See (U)DEC3(N) format for details.
D3DDECLTYPE_UDEC3N	0x2A2087	Normalized, 3D unsigned 10 10 10 format expanded to (v[0]/1023.0, v[1]/1023.0, v[2]/1023.0, 1). See (U)DEC3(N) format for details.
D3DDECLTYPE_DEC3N	0x2A2187	3D signed 10 10 10 format normalized and expanded to (v[0]/511.0, v[1]/511.0, v[2]/511.0, 1). See (U)DEC3(N) format for details.
D3DDECLTYPE_UDEC4	0x1A2287	4D unsigned 10 10 10 2 format expanded to (value, value, value, value).
D3DDECLTYPE_DEC4	0x1A2387	4D signed 10 10 10 2 format expanded to (value, value, value, value).
D3DDECLTYPE_UDEC4N	0x1A2087	4D unsigned 10 10 10 2 format expanded to (v[0]/1023.0, v[1]/1023.0, v[2]/1023.0, v[3]/3.0).
D3DDECLTYPE_DEC4N	0x1A2187	4D signed 10 10 10 2 format expanded to (v[0]/511.0, v[1]/511.0, v[2]/511.0, v[3]/1.0).
D3DDECLTYPE_UHEND3	0x2A2290	3D unsigned 11 11 10 format expanded to (value, value, value, 1). See Packed 11:11:10 format for details.
D3DDECLTYPE_HEND3	0x2A2390	3D signed 11 11 10 format expanded to (value, value, value, 1). See Packed 11:11:10 format for details.
D3DDECLTYPE_UHEND3N	0x2A2090	Normalized, 3D unsigned 11 11 10 format expanded to (value/2047.0, value/2047.0, value/1023.0, 1). See Packed 11:11:10 format for details.
D3DDECLTYPE_HEND3N	0x2A2190	Normalized, 3D signed 11 11 10 format expanded to (value/1023.0, value/1023.0, value/511.0, 1). See Packed 11:11:10 format for details.
D3DDECLTYPE_UDHEN3	0x2A2291	3D unsigned 10 11 11 format expanded to (value, value, value, 1). See Packed 10:11:11 format for details.
D3DDECLTYPE_DHEN3	0x2A2391	3D signed 10 11 11 format expanded to (value, value, value, 1). See Packed 10:11:11 format for details.
D3DDECLTYPE_UDHEN3N	0x2A2191	Normalized, 3D unsigned 10 11 11 format expanded to (value/1023.0, value/2047.0, value/2047.0, 1). See Packed 10:11:11 format for details.
D3DDECLTYPE_DHEN3N	0x2A2191	Normalized, 3D signed 10 11 11 format expanded to (value/511.0, value/1023.0, value/1023.0, 1). See Packed 10:11:11 format for details.
D3DDECLTYPE_FLOAT16_2	0x2C235F	Two 16-bit floating-point values expanded to (value, value, 0, 1).
D3DDECLTYPE_FLOAT16_4	0x1A2360	Four 16-bit floating-point values expanded to (value, value, value, value).
D3DDECLTYPE_UNUSED	0xFF800000	Type field in the declaration is unused. This is designed for use with D3DDECLMETHOD_UV and D3DDECLMETHOD_LOOKUPPRESAMPLED.

(U)DEC3(N) format

To generate a packed 32-bit value that can be used with D3DDECLTYPE_DEC3, D3DDDECLTYPE_UDEC3, and D3DDDECLTYPE_DEC3N, use the following macro:
#define MakeDEC3(x,y,z,w) ((x)+((y)<<10)+((z)<<20)+((w)<<30))

(U)BYTE4(N) format

To generate a packed 32-bit value that can be used with D3DDECLTYPE_BYTE4, D3DDECLTYPE_BYTE4N, D3DDECLTYPE_UBYTE4 and D3DDECLTYPE_UBYTE4N, use the following macro:
#define MakeUBYTE4(x,y,z,w) ((x)+((y)<<8)+((z)<<16)+((w)<<24))

Packed 10:11:11 format

To generate a packed 32-bit value that can be used with type such as D3DDECLTYPE_UDHEN3, use the following macro:
#define MakePacked_10_11_11(x,y,z) ((x) + ((y)<<10) + ((z)<<21))

Packed 11:11:10 format

To generate a packed 32-bit value that can be used with type such as D3DDECLTYPE_UHEND3, use the following macro:
#define MakePacked_11_11_10(x,y,z) ((x) + ((y)<<11) + ((z)<<22))

D3DDECLMETHOD

From the MS Learn page.

Name	Value	Comments
D3DDECLMETHOD_DEFAULT	0	Default value. The tessellator copies the vertex data (spline data for patches) as is, with no additional calculations. When the tessellator is used, this element is interpolated. Otherwise vertex data is copied into the input register. The input and output type can be any value.
D3DDECLMETHOD_PARTIALU	1	Computes the tangent at a point on the rectangle or triangle patch in the U direction. The input type can be D3DDECLTYPE_FLOAT3, D3DDECLTYPE_FLOAT4, D3DDECLTYPE_D3DCOLOR, D3DDECLTYPE_UBYTE4, D3DDECLTYPE_SHORT4. The output type is always D3DDECLTYPE_FLOAT3.
D3DDECLMETHOD_PARTIALV	2	Computes the tangent at a point on the rectangle or triangle patch in the V direction. The input type can be D3DDECLTYPE_FLOAT3, D3DDECLTYPE_FLOAT4, D3DDECLTYPE_D3DCOLOR, D3DDECLTYPE_UBYTE4, or D3DDECLTYPE_SHORT4. The output type is always D3DDECLTYPE_FLOAT3.
D3DDECLMETHOD_CROSSUV	3	Computes the normal at a point on the rectangle or triangle patch by taking the cross product of the two tangents. The input type can be D3DDECLTYPE_FLOAT[43], D3DDECLTYPE_D3DCOLOR, D3DDECLTYPE_UBYTE4, or D3DDECLTYPE_SHORT4. The output type is always D3DDECLTYPE_FLOAT3.
D3DDECLMETHOD_UV	4	Copy out the U, V values at a point on the rectangle or triangle patch. This results in a 2D float. The input type must be set to D3DDECLTYPE_UNUSED. The output data type is always D3DDECLTYPE_FLOAT2. The input stream and offset are also unused (but must be set to 0).
D3DDECLMETHOD_LOOKUP	5	Look up a displacement map. The input type can be D3DDECLTYPE_FLOAT2, D3DDECLTYPE_FLOAT3, or D3DDECLTYPE_FLOAT4. Only the .x and .y components are used for the texture map lookup. The output type is always D3DDECLTYPE_FLOAT1. The device must support displacement mapping. This constant is supported only by the programmable pipeline on N-patch data, if N-patches are enabled.
D3DDECLMETHOD_LOOKUPPRESAMPLED	6	Look up a presampled displacement map. The input type must be set to D3DDECLTYPE_UNUSED. The stream index and the stream offset must be set to 0. The output type for this operation is always D3DDECLTYPE_FLOAT1. The device must support displacement mapping. This constant is supported only by the programmable pipeline on N-patch data, if N-patches are enabled.

D3DDECLUSAGE

From the MS Learn page.

Name	Value	Comments
D3DDECLUSAGE_POSITION	0	Position data.
D3DDECLUSAGE_BLENDWEIGHT	1	Blending weight data.
D3DDECLUSAGE_BLENDINDICES	2	Blending indices data.
D3DDECLUSAGE_NORMAL	3	Vertex normal data.
D3DDECLUSAGE_PSIZE	4	Point size data.
D3DDECLUSAGE_TEXCOORD	5	Texture coordinate data.
D3DDECLUSAGE_TANGENT	6	Vertex tangent data.
D3DDECLUSAGE_BINORMAL	7	Vertex binormal data.
D3DDECLUSAGE_TESSFACTOR	8	Single positive floating-point value. Use D3DDECLUSAGE_TESSFACTOR with a usage index of 0 to specify a tessellation factor used in the tessellation unit to control the rate of tessellation.
D3DDECLUSAGE_COLOR	10	Vertex data contains diffuse or specular color.
D3DDECLUSAGE_FOG	11	Vertex data contains fog data.
D3DDECLUSAGE_DEPTH	12	Vertex data contains depth data.
D3DDECLUSAGE_SAMPLE	13	Vertex data contains sampler data.

Indexed usage

Name	Value	Comments
NA	0	0
D3DDECLUSAGE_POSITION	1	0
D3DDECLUSAGE_POSITION	2	0
D3DDECLUSAGE_NORMAL	3	0
D3DDECLUSAGE_COLOR	4	0
D3DDECLUSAGE_COLOR	5	1
D3DDECLUSAGE_TEXCOORD	6	0
D3DDECLUSAGE_TEXCOORD	7	1
D3DDECLUSAGE_TEXCOORD	8	2
D3DDECLUSAGE_TEXCOORD	9	3
D3DDECLUSAGE_TEXCOORD	10	4
D3DDECLUSAGE_TEXCOORD	11	5
D3DDECLUSAGE_TEXCOORD	12	6
D3DDECLUSAGE_TEXCOORD	13	7
D3DDECLUSAGE_BLENDINDICES	14	0
D3DDECLUSAGE_BLENDWEIGHT	15	0
D3DDECLUSAGE_POSITION	16	1
D3DDECLUSAGE_NORMAL	17	1
D3DDECLUSAGE_POSITION	18	0
D3DDECLUSAGE_POSITION	19	0
D3DDECLUSAGE_POSITION	20	0
D3DDECLUSAGE_TANGENT	21	0
D3DDECLUSAGE_BINORMAL	22	0
D3DDECLUSAGE_COLOR	23	2
D3DDECLUSAGE_FOG	24	0
D3DDECLUSAGE_PSIZE	25	0
D3DDECLUSAGE_BLENDINDICES	26	1
D3DDECLUSAGE_BLENDWEIGHT	27	1

renderengine::VertexDescriptor::ElementClass

Name	Value	Comments
ELEMENTCLASS_NA	0
ELEMENTCLASS_PERVERTEX	1
ELEMENTCLASS_PERINSTANCE	2
ELEMENTCLASS_FORCEENUMSIZEINT	0x7FFFFFFF