Field elements

Clarifications

¹ This is a meaningful short name. The data provider may use the <DRM Description> component to provide a more detailed description.

² This specifies the colour model used throughout the given <DRM Image> instance. Only one colour model is allowed per <DRM Image> instance.

³ This specifies the number of Levels of Detail defined for the given <DRM Image> instance (for mipmaps).

If this is not a mipmapped image, only one level will defined (level_count == 1).

Many end-user applications require that <DRM Image> instances having MIP levels specify both the horizontal and vertical dimensions as a power of 2. However, some applications can handle <DRM Image> instances for which the horizontal and vertical dimensions are a multiple of 2 rather than a power of 2. For example, 96 texels in a direction is a multiple of 2 but not a power of 2.

Please note that SEDRIS places no restriction on either the dimensional size of an <DRM Image> instance, nor makes any statement as to whether the use of MIPS information within the <DRM Image> will be valid on a given consumer's system.

Note that for an <DRM Image> instance with an image_signature of EDCS_CLASSIFICATION_CODE, the bit size is a constant of sizeof(Classification_Code).

⁴ There are level_count entries in the array. Each entry defines the “size” (the number of horizontal, vertical, and z texels) for a single MIP level of the given <DRM Image> instance.

The first map shall contain the highest level of detail; that is, mip_extents_array[0] corresponds to the level containing the most texels.

⁵ This indicates how texels are represented within the given <DRM Image> instance; see Image_Signature for details.

⁶ This specifies the origin and direction of the horizontal and vertical components of the given <DRM Image> instance.

⁷ This specifies the direction in which the given <DRM Image> instance's z components are ordered.

⁸ This specifies the data type of the raw image data. If signed or unsigned integer is specified, the max size fields apply. If floating point is specified, the values range from 0.0 to 1.0.

⁹ This flag specifies the endianess of the raw image data.

¹⁰ This flag specifies whether the image data has 3 dimensions.

¹¹ If 0 is specified, the image data does not contain alpha information.

¹² If 0 is specified, the image data does not contain luminance information.

¹³ If 0 is specified, the image data does not contain colour information for this colour coordinate (R, C, H).

¹⁴ If 0 is specified, the image data does not contain colour information for this colour coordinate (G, M, S).

¹⁵ If 0 is specified, the image data does not contain colour information for this colour coordinate (B, Y, V).

¹⁶ If 0 is specified, the image data does not contain bump_map_height information.

¹⁷ If 0 is specified, the image data does not contain material 1 index information. If non-0 is specified, then this is an index into the <DRM Property Table> instance(s) that are referenced from the given <DRM Image> instance.

NOTE: With no material_2 or material_3 percentages, material_1 is at 100%.

¹⁸ If this value is non-zero for a given <DRM Image> instance X, then

• X has at least one <DRM Property Table Reference> component, and

• the bits in the image data of X corresponding to material 2 specify indices into the <DRM Property Table> instance(s) referenced by X's <DRM Property Table Reference> component(s).

However, if bits_of_material_2 = 0, the given <DRM Image> instance's texel data do not contain material 2 index information.

¹⁹ If this value is non-zero for a given <DRM Image> instance X, then

• X has at least one <DRM Property Table Reference> component, and

• the bits in the image data of X corresponding to material 3 specify indices into the <DRM Property Table> instance(s) referenced by X's <DRM Property Table Reference> component(s).

However, if bits_of_material_3 = 0, the given <DRM Image> instance's texel data do not contain material 3 index information.

²⁰ If required by the given <DRM Image> instance's image_signature, this field is used to specify the percentage of material 2.

NOTE: the percentage of material 1 is (100% - (percentage of material 2))

²¹ If required by the given <DRM Image> instance's image_signature, this field is used to specify the percentage of material 3.

NOTE: the percentage of material 1 is (100% - (percentage of material 2) - percentage of material 3))

²² If 0 is specified, the image data does not contain image index information.

²³ If 0 is specified, the image data does not contain bump_map_u information.

²⁴ If 0 is specified, the image data does not contain bump_map_v information.

²⁵ This is the minimum value that alpha can be within the image data; it is 0.0 if alpha is not used.

²⁶ This is the maximum value that alpha can be within the image data; it is 0.0 if alpha is not used.

²⁷ This is the minimum value that luminance can be within the image data; it is 0.0 if luminance is not used.

²⁸ This is the maximum value that luminance can be within the image data; it is 0.0 if luminance is not used.

²⁹ This is the minimum value that colour_coordinate_1 can be within the image data; it is 0.0 if not used.

³⁰ This is the maximum value that colour_coordinate_1 can be within the image data; it is 0.0 if colour_coordinate_1 is not used.

³¹ This is the minimum value that colour_coordinate_2 can be within the image data; it is 0.0 if colour_coordinate_2 is not used.

³² This is the maximum value that colour_coordinate_2 can be within the image data; it is 0.0 if colour_coordinate_2 is not used.

³³ This is the minimum value that colour_coordinate_3 can be within the image data; it is 0.0 if colour_coordinate_3 is not used.

³⁴ This is the maximum value that colour_coordinate_3 can be within the image data; it is 0.0 if colour_coordinate_3 is not used.

³⁵ This is the minimum value that bump_map_height can be within the image data; it is 0.0 if bump_map_height is not used.

³⁶ This is the maximum value that bump_map_height can be within the image data; it is 0.0 if bump_map_height is not used.

³⁷ This is the minimum value that bump_map_u can be within the image data; it is 0.0 if bump_map_u is not used.

³⁸ This is the maximum value that bump_map_u can be within the image data; it is 0.0 if bump_map_u is not used.

³⁹ This is the minimum value that bump_map_v can be within the image data; it is 0.0 if bump_map_v is not used.

⁴⁰ This is the maximum value that bump_map_v can be within the image data; it is 0.0 if bump_map_v is not used.

⁴¹ If provided, this specifies either

1. information about the events and/or source data used in constructing the given <DRM Image> instance, or
2. lack of knowledge about lineage.

⁴² This is intended to support geo-specific <DRM Image> instances that are not referenced by any <DRM Image Mapping Function>, because an <DRM Image> may be significant only for a particular domain, e.g. radar, thermal, out-the-window.