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diff --git a/README.md b/README.md new file mode 100644 index 0000000..a53393e --- /dev/null +++ b/README.md @@ -0,0 +1,33 @@ +# Amalgine 3D model file format (.a3d) +All types are stored in little endian format. Any type with a * is optional. +|Type |Description | +|-------|-------------------------------------------------------------------------------------| +|uint |The magic number, the value will always be 0x036144AF. | +|uint |Version of the file format. This is backwards compatible but not forwards compatible.| +|mesh[] |The mesh data. | + +mesh: +|Type |Description | +|-----------|-------------------------------------------------------------------------------------| +|uint |The number of vertices, normals and optionally texture coordinates. | +|vec3f[] |A list of vertices. | +|vec3f[] |A list of normals. | +|uint |The number of faces. Each face has 3 indices of type uint. | +|uint[] |The face indices. | +|uint |1 if the model has texture coordinates, otherwise 0. | +|vec3f[]* |A list of texture coordinates. | +|uint |1 if the model has materials, otherwise 0. | +|material[3]|The material data. This is a list of [diffuse, specular, ambient] materials. | + +vec3f: +|Type |Description | +|-----|----------------| +|float|The x coordiate.| +|float|The y coordiate.| +|float|The z coordiate.| + +material: +|Type |Description | +|------|-------------------------------------------------------------------------| +|uint |The number of textures. | +|char[]|The filepath to the texture (relative). This is a null-terminated string.| |