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This is a program that uses assimp to convert different 3d model formats to file format that amalgine can read (.a3d).
To see a list of supported file formats, see https://github.com/assimp/assimp#supported-file-formats (this is for the latest version of assimp).
# Amalgine 3D model file format (.a3d)
.a3d is a binary file format. All types are stored in little endian format. Any type with a * is optional.
|Type |Description |
|-------|-------------------------------------------------------------------------------------|
|u32 |The magic number, the value will always be 0x036144AF. |
|u32 |Version of the file format. This is backwards compatible but not forwards compatible.|
|mesh[] |The mesh data. |
mesh:
|Type |Description |
|-----------|------------------------------------------------------------------------------------------------|
|u32 |The number of vertices, normals and optionally texture coordinates. |
|vec3f[] |A list of vertices. |
|vec3f[] |A list of normals. |
|u32 |1 if the model has texture coordinates, otherwise 0. |
|vec2f[]* |A list of texture coordinates. The number of texture coordinates matches the number of vertices.|
|u32 |The number of faces. |
|face[] |The face indices. |
|u32 |1 if the model has materials, otherwise 0. |
|material[3]|The material data. This is a list of [diffuse, specular, ambient] materials. |
vec2f:
|Type |Description |
|-----|----------------|
|float|The x coordiate.|
|float|The y coordiate.|
vec3f:
|Type |Description |
|-----|----------------|
|float|The x coordiate.|
|float|The y coordiate.|
|float|The z coordiate.|
face:
|Type|Description |
|----|-----------------|
|u32 |The first index. |
|u32 |The second index.|
|u32 |The third index. |
material:
|Type |Description |
|------|---------------------------------------------------------------------------|
|u32 |The number of textures. |
|char[]|The filepaths to the textures (relative). This is a null-terminated string.|
## TODO
Handle big endian
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