Difference between revisions of "Sims 3:0x033A1435"

Revision as of 18:53, 2 February 2012

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

Properties

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

Step Types

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

Detail Levels

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

Shader Models

Render Textures

Render Targets

Analogous to .NET Render Targets

Colour Write Flags

Filters colour channels that are used in a step

Blend Factors

Analogous to .NET Blend Factors

Data Types