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Make the data offset calculations a little bit clearer

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Joshua Goins 2024-03-01 15:47:47 -05:00
parent ebca076c2d
commit d75296f4d2
1 changed files with 14 additions and 8 deletions
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22
src/model.rs
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@ -376,6 +376,7 @@ pub struct SubMesh {
pub index_offset: u32 pub index_offset: u32
} }
/// Corresponds to a "Mesh" in an LOD
#[derive(Clone)] #[derive(Clone)]
pub struct Part { pub struct Part {
mesh_index: u16, mesh_index: u16,
@ -695,21 +696,26 @@ impl MDL {
self.file_header.stack_size = self.file_header.calculate_stack_size(); self.file_header.stack_size = self.file_header.calculate_stack_size();
self.file_header.runtime_size = self.model_data.calculate_runtime_size(); self.file_header.runtime_size = self.model_data.calculate_runtime_size();
let mut vertex_offset = self.file_header.runtime_size let data_offset = self.file_header.runtime_size
+ size_of::<ModelFileHeader>() as u32 + size_of::<ModelFileHeader>() as u32
+ self.file_header.stack_size; + self.file_header.stack_size;
let mut overall_offset: u32 = 0;
for lod in &mut self.model_data.lods { for lod in &mut self.model_data.lods {
lod.vertex_data_offset = vertex_offset; // vertex
lod.vertex_data_offset = data_offset + overall_offset;
overall_offset += lod.vertex_buffer_size;
vertex_offset = lod.vertex_data_offset + lod.vertex_buffer_size; // index
lod.index_data_offset = data_offset + overall_offset;
overall_offset += lod.index_buffer_size;
lod.index_data_offset = vertex_offset; // edge, but unused?
//lod.edge_geometry_data_offset = data_offset + overall_offset;
//overall_offset += lod.edge_geometry_size;
// dummy lod.edge_geometry_data_offset = lod.index_data_offset;
lod.edge_geometry_data_offset = vertex_offset;
vertex_offset = lod.index_data_offset + lod.index_buffer_size;
} }
for i in 0..self.lods.len() { for i in 0..self.lods.len() {