Sims 3:0x033A1435

Texture Compositor - TXTC
TypeID:	0x033A1435
Game Version:	The Sims 3

Overview

This format is internally known as the "TextureCompositor". It describes the process of combining various texture files into what is actually rendered in the game. Texture Steps are to be read sequentially, as the previous ones affect the ones that follow. Sources are generally external textures referenced by an image key, destination represents the render texture specified by the steps, thus a virtual texture.

Format

DWORD	// Version
DWORD	// Offset of the I64GT Count from the end of this DWORD

--if Version >= 7
	BYTE EmbeddedTxtcCount
	--repetition(EmbeddedTxtcCount)
		BYTE	// TGI index for this embedded txtc's resource key		
		DWORD	// byte size of this embedded txtc
		--Insert another TXTC
		BYTE[3]	// don't know but seems needed

DWORD Pattern Size
DWORD PartType
BYTE //00
DWORD	// entry count

--if Version >= 8
	BYTE //00

--repetition(entry count)
	{Entry}	// see below

BYTE	// I64GT Count
--repetition(I64GT Count)
	I64GT

Entry format

An "entry" is made up of a repeating group, as follows:

--Repeat until the next "property id" is 0x00000000
	DWORD	// Property ID - see Properties below
	BYTE	// 0x00
	BYTE	// Data type - see Data types below
	{Data}	// 
DWORD		// 0x00000000 the next "property id"; not a full entry group

by Karybdis

Pattern Size

0x00000000	Default
0x00000001	Large

Properties

Property IDs are derived from an internal name hashed with the FNV32 algorithm.

ID	Name	Description	DataType
0x048F7567	Destination Blend	See Blend Factors below	0x03
0x06A775CE	Skip Shader Model	See Shader Models below.	0x03
0x10DA0B6A	Mask Source
0x182E64EB	Width		0x07
0x1F091259	Mask Select		0x0B
0x2EDF5F53	Min Shader Model		0x03
0x331178DF	Skip Detail Level	See Detail Levels below	0x07
0x3A3260E6	Mask Bias		0x09
0x49DE3B16	Mask Key		0x0C
0x49F996DB	Rotation		0x09
0x4C47D5C0	Height		0x07
0x64399EC5	Default Colour		0x07
0x687720A6	ID	See Step Types below.	0x07
0x6B7119C1	Description		0x0D
0x8A7006DB	Image Source	See Render Targets below	0x07
0xA2C91332	Render Target	See Render Targets below	0x07
0xA3AAFC98	Source Rectangle		0x0A
0xAE5FE82A	Min Detail Level	See Detail Levels below	0x07
0xB01748DA	Colour		0x07
0xB07B3B93	Colour Write	See Colour Write Flags below	0x03
0xB67C2EF8	HSV Shift		0x0B
0xD0E69002	Channel Select		0x0B
0xD92A4C8B	UI Visible		0x00
0xD49E8879	?	?	0x00
0xDCFF6D7B	Default Fabric	References embedded superblock	0x0C
0xE055EE36	Source Blend	See Blend Factors below	0x03
0xE1D6D01F	Destination Rectangle		0x0A
0xE27FE962	Enable Filtering		0x00
0xF6CC8471	Image Key		0x0C
0xFBF310C7	Enable Blending	Indicative whether or not there will be Source/Destination blend parameters	0x00

Step Types

These are the known values for the ID field of the properties. The ID is derived from a FNV32 hashed internal name.

ID	Name	Description
0x034210A5	Draw Fabric	Draws an embedded fabric txtc. This comes from Default fabric parameter, which has overrides all over the place
0x1E363B9B	Channel Select	Masks future steps based upon the colour from the "Channel Select" parameter using the mask texture in the "Image Key"
0x43B554E3	Skin Tone
0x5D7C85D4	Hair Tone
0x890805DB	Remapped Channel Select
0x9CD1269D	Colour Fill	Fills the texture buffer with a colour, this is often limited to a masked channel
0xA15200B1	Draw Image	Draws an image to the buffer, this is affected by masked colour channels, src/dest rectangles and src/dest blend factors
0xC6B6AC1F	CAS Pick Data
0xD6BD8695	Set Target	Sets which render target future steps will use
0xDC0984B9	HSV to RGB

Detail Levels

This is not an enumeration, rather min/max constants defined by EA

ID	Name	Description
0x00000000	Lowest
0x00000003	Highest

Shader Models

ID	Name	Description
0x00000000	SM_1_0
0x00000001	SM_1_1
0x00000002	SM_2_0
0x00000003	SM_2_1
0x7FFFFFFF	SM_Highest

Render Textures

ID	Name	Description
0x21E9CD3	RenderTexture_A
0x21E9CD5	RenderTexture_B

Render Targets

Analogous to .NET Render Targets

ID	Name	Description
0x21E9CD2	RenderTarget_A
0x21E9CD4	RenderTarget_B

Colour Write Flags

Filters colour channels that are used in a step

ID	Name	Description
0x00000001	Red
0x00000002	Green
0x00000004	Blue
0x00000008	Alpha

Blend Factors

Analogous to .NET Blend Factors

ID	Name	Description
0x00000000	Zero
0x00000001	One
0x00000002	Source Colour
0x00000003	Inverse Source Colour
0x00000004	Source Alpha
0x00000005	Inverse Source Alpha
0x00000006	Destination Alpha
0x00000007	Inverse Destination Alpha
0x00000008	Destination Colour
0x00000009	Inverse Destination Colour
0x0000000A	Source Alpha Saturation
0x0000000B	Blend Factor
0x0000000C	Inverse Blend Factor

Data Types

Typecode	Data	Comment
0x00	BYTE	boolean
0x01	BYTE	signed
0x02	WORD	signed short
0x03	DWORD	signed int
0x04	QWORD	signed long int
0x05	BYTE	unsigned
0x06	WORD	unsigned short
0x07	DWORD	unsigned int (e.g. step type)
0x08	QWORD	unsigned long int
0x09	FLOAT
0x0A	FLOAT[4]	RectFloat
0x0B	FLOAT[4]	Vector4
0x0C	BYTE	Index into TGI64 table
0x0D	WORD len, string[len]