Model Material Set - .mmat¶

.mmat represents all the materials for a model, it is a set of materials. It describes the textures to use, and the shaders linked to a material.

This file is a FlatBuffer file.

Field Name	Type	Description
magic	uint	Should be `20230727`, explicitly checked. Might correspond to a date, 2023/07/27.
materials	Material[]	List of all materials in the material set.
constant_buffers	ConstantBuffer	List of constant buffers.
shader_param_float_data_pool	float[]	Float data for materials when their parameters uses floats/Vectors.
byte5	byte	Unknown. `em` files seem to use this.
bool6	bool	Unknown.
bool7	bool	Unknown.

Material¶

Field Name	Type	Description
shader_params	ShaderParamInfo[]	Shader parameters, which shaders to use.
texture_maps	TextureMapInfo[]	Textures to use.
constant_buffer_indices	uint	Indices of which constant buffers to use.
granite_params	GraniteVirtualTextureStreamingInfo	Granite SDK Texture streaming info. If not present, will load textures loose.
unique_material_name_hash_maybe	XXHash32Custom(str)	Hash of the name of this material.
shader_type	byte	Type of shader to use.
shader_sub_type	byte	Sub-type of shader.
unk_8	byte	Unknown. Should be 0 to 3.
bool9	bool	Unknown.
bool10	bool	Unknown.
bool11	bool	Unknown.
bool12	bool	Unknown.

Shader Type

Each shader type uses a different type of shader where different parameters and texture maps may be required to be provided. Refer to files which uses these types in the first place to provide the proper parameters to avoid a potential game crash.

0 = player_silhouette? (sub-types: 7, 8)
1 = player_silhouette2? (sub-types: 7, 8)
2 = Eye shaders? (sub-types: 7, 8)
3 = Face shaders? (sub-types: 0, 3, 7, 8)
4 = Hair shaders? (sub-types: 0, 3, 7, 8)
5 = Metal shaders (sub-types: 0, 3, 4, 5, 7, 8)
7 = elementallookdev (sub-types: 7, 8)
8 = flowmap (sub-types: 7, 8)
9 = foilage (sub-types: 7, 8)
10 = glowingground (sub-types: 7, 8)
11 = glowingmountain (sub-types: 7, 8)
12 = ice (sub-types: 2, 3, 7, 8)
13 = ice_2layer (sub-types: 7, 8)
14 = lavafall (sub-types: 7, 8)
15 = lucilius (sub-types: 7, 8)
16 = Not supported
17 = plantbillboard (sub-types: 7, 8)
18 = plantmiddleview (sub-types: 4, 7, 8)
19 = plantshake (sub-types: 4, 7, 8)
20 = skycloud (sub-types: 1, 7, 8)
21 = uberenv (sub-types: 1, 7, 8)
22 = uberenv_layer2 (sub-types: 1, 7, 8)
23 = uberenv_layer2_plantpivotpainter (sub-types: 1, 7, 8)
24 = uberenv_layer3 (sub-types: 1, 7, 8)
25 = uberenv_layer4 (sub-types: 1, 7, 8)
26 = uberenv_plantpivotpainter? (sub-types: 4, 7, 8)
27 = uberenvtextureless? (sub-types: 7, 8)
28 = Not supported
29 = grid (sub-types: 7, 8)

Shader Sub-Type

The sub-types supported depend on the main shader type.

0 = vs_pbs_xxxxx/vs_pbs_sxxxx8_anime/vs_pbs_sxxxx/vs_pbs_sxxxx_anime
1 = ?
3 = outline (skinning)
4 = shadow
5 = shadow skinning mask (dp)
6 = pointlight_shadow_mask
7 = player silhouette or regular texture?
8 = "foward" shaders?

ShaderParamInfo¶

Field Name	Type	Description
param_hash	XXHash32Custom(str)	Hashed shader parameter name. NOTE: Structures should be ordered by this.
value_or_offset	uint	Value for the parameter. Note that when the type is `float/Vec2/Vec3/Vec4`, the value becomes an offset to `shader_param_float_data_pool`.
value_type	ShaderParamValueType	Parameter value type.

Value Types

U8 = 0,
U16 = 1,
F32 = 2,
Vec2 = 3
Vec3 = 4,
Vec4 = 5

TextureMapInfo¶

Field Name	Type	Description
shader_map_name_hash	XXHash32Custom(str)	Hashed map name passed to the shader. NOTE: Structures should be ordered by this.
texture_name	string	Texture name. When granite is not in use, this will be mapped to `texture/4k/<name>.texture` or `texture/<name>.texture`.

GraniteVirtualTextureStreamingInfo¶

Field Name	Type	Description
page_file	string	Granite page file where textures for this material are located.
layer_to_shader_map_name_hash	XXHash32Custom(str)[]	Shader map names. Each element will map to one layer in the granite file. For instance if element 0 is the hash of `g_AlbedoMap`, that means that `g_AlbedoMap` is located at layer 0.
unk3	byte	Unknown.
unk4	byte	Unknown.
tile_set_number	byte	Tile set number where the page file is located. Up to 11 is supported, 0-2 is used. Reminder - a new minor update always adds 3 new tile sets, so 0-11 for 1.0 through 1.3.

ConstantBuffer¶

Unknown. This is indexed by constant_buffer_indices within materials.

Field Name	Type	Description
buffer	uint[]	Float buffer.
unk_unique_param_name_hash	XXHash32Custom(str)	Unique name hash.

Known Hashes¶

Shader Maps

Strings can be found inside shaders.

enum ShaderMapTypeHash : uint
{
    Unk = 0,
    g_5A2C820C             = 0x5A2C820C,
    g_8A0507FB             = 0x8A0507FB,
    g_AlbedoMap            = 0x3F2B4D59,
    g_AlbedoMapFar         = 0x7847F758,
    g_AlbedoMapMiddle      = 0x56C35C30,
    g_AlbedoTex            = 0xE9AEA597,
    g_AlbedoTex0           = 0x7D82DDEA,
    g_AlbedoTex1           = 0x8FC0A070,
    g_AlbedoTex2           = 0x19615C52,
    g_AlbedoTex3           = 0xA697D782,
    g_AreaMaskMap          = 0xD52525E5,
    g_Base0Map             = 0x9EE04147,
    g_Base1Map             = 0x46C247DB,
    g_BottomErosion0Map    = 0xAD237ACF,
    g_BottomErosion1Map    = 0x47DA21A1,
    g_BumpMap              = 0xE19336DE,
    g_BumpMaskMap          = 0x707A6889,
    g_BumpNormalMap        = 0x9B7115C3,
    g_Color0Map            = 0x7AF0C744,
    g_Color1Map            = 0xC5089B10,
    g_ContainerMap         = 0x6C92581E,
    g_DetailNormalMap      = 0x71F4A50E,
    g_DitherMap            = 0x0C914331,
    g_EmissiveMap          = 0x5CDF6E8F,
    g_EyeHighLightTexture  = 0x00B36A70,
    g_EyeIrisTexture       = 0x637A19F3,
    g_EyeWhiteTexture      = 0xAEDB57AE,
    g_FlowMap              = 0x983C09F6,
    g_IBLTexture           = 0x330CF7B7,
    g_Large0Map            = 0xC56364D9,
    g_Large1Map            = 0x9FEF4F43,
    g_Layer1Map            = 0x7373F664,
    g_Layer2Map            = 0x3779219E,
    g_LowDetailMap         = 0xF8E10DF2,
    g_LUT                  = 0x69DF53A1,
    g_Mask0Map             = 0xDB972A87,
    g_Mask1                = 0x847A6CBD,
    g_Mask1Map             = 0x42904E14,
    g_Mask2                = 0x6137BA13,
    g_Mask2Map             = 0x2D04F715,
    g_Mask3                = 0x35091AFA,
    g_Mask4                = 0x393263EF,
    g_MaskMap              = 0x63C1ED71,
    g_MaskMap1             = 0x3DCC2032,
    g_MaskTex              = 0xD19EA412,
    g_MaskTex0             = 0xAE860AB0,
    g_MaskTex1             = 0x3069DB65,
    g_MaskTex2             = 0xEDD2D2AF,
    g_MaskTex3             = 0x4CC0E7B6,
    g_Middle0Map           = 0x38054382,
    g_Middle1Map           = 0xB70FDCD5,
    g_MROEMap              = 0x4905E4E4,
    g_MROMap               = 0x7852D3FE,
    g_Noise0Map            = 0x451D0F3A,
    g_Noise1Map            = 0x62F4BBF8,
    g_NoiseGradationMap    = 0xB21CCD8B,
    g_NoiseMap             = 0x7159CBC3,
    g_NoiseMaskMap         = 0x010A5EFA,
    g_NormalMap            = 0xADBA7C37,
    g_NormalMap1           = 0x1470B2FB,
    g_NormalTex            = 0xE752FF91,
    g_NormalTex0           = 0xB55D7961,
    g_NormalTex1           = 0xFB542B74,
    g_NormalTex2           = 0x295ED71A,
    g_NormalTex3           = 0x82A0AA5A,
    g_OffsetMask0Map       = 0x6ECBBABD,
    g_OffsetMask1Map       = 0xAD768A4F,
    g_ParallaxTexture      = 0x1EE34406,
    g_SideErosion0Map      = 0x1EC206C2,
    g_SideErosion1Map      = 0xE21BFE74,
    g_SideNoiseMap         = 0xA7D31F31,
    g_SparkleNormalMap     = 0x64E256E8,
    g_UberColorNoiseMap    = 0xC19A4B09,
    g_WindMaskMap          = 0x1DD2F116,
}

Shader Parameters