diff --git a/src/main.rs b/src/main.rs index 377eddc..ea2c3e9 100644 --- a/src/main.rs +++ b/src/main.rs @@ -12,18 +12,20 @@ struct Vertex { } struct Entity { - vertex_count: u32, - vertex_buf: wgpu::Buffer, + index_count: u32, + index_buf: wgpu::Buffer, } //temp? struct ModelData { transform: glam::Affine3A, + vertex_buf: wgpu::Buffer, entities: Vec, } struct Model { transform: glam::Affine3A, + vertex_buf: wgpu::Buffer, entities: Vec, bind_group: wgpu::BindGroup, model_buf: wgpu::Buffer, @@ -165,34 +167,47 @@ fn get_transform_uniform_data(transform:&glam::Affine3A) -> [f32; 4*4] { fn add_obj(device:&wgpu::Device,modeldatas:& mut Vec,source:&[u8]){ let data = obj::ObjData::load_buf(&source[..]).unwrap(); let mut vertices = Vec::new(); + let mut vertex_index = std::collections::HashMap::::new(); for object in data.objects { let mut entities = Vec::::new(); for group in object.groups { - vertices.clear(); + let mut indices = Vec::new(); for poly in group.polys { for end_index in 2..poly.0.len() { for &index in &[0, end_index - 1, end_index] { - let obj::IndexTuple(position_id, _texture_id, normal_id) = - poly.0[index]; - vertices.push(Vertex { - pos: data.position[position_id], - normal: data.normal[normal_id.unwrap()], - }) + let vert = poly.0[index]; + if let Some(&i)=vertex_index.get(&vert){ + indices.push(i as u16); + }else{ + let i=vertices.len() as u16; + vertices.push(Vertex { + pos: data.position[vert.0], + normal: data.normal[vert.2.unwrap()], + }); + vertex_index.insert(vert,i); + indices.push(i); + } } } } - let vertex_buf = device.create_buffer_init(&wgpu::util::BufferInitDescriptor { - label: Some("Vertex"), - contents: bytemuck::cast_slice(&vertices), - usage: wgpu::BufferUsages::VERTEX, + let index_buf = device.create_buffer_init(&wgpu::util::BufferInitDescriptor { + label: Some("Index"), + contents: bytemuck::cast_slice(&indices), + usage: wgpu::BufferUsages::INDEX, }); entities.push(Entity { - vertex_count: vertices.len() as u32, - vertex_buf, + index_buf, + index_count: indices.len() as u32, }); } + let vertex_buf = device.create_buffer_init(&wgpu::util::BufferInitDescriptor { + label: Some("Vertex"), + contents: bytemuck::cast_slice(&vertices), + usage: wgpu::BufferUsages::VERTEX, + }); modeldatas.push(ModelData { transform: glam::Affine3A::default(), + vertex_buf, entities, }) } @@ -512,6 +527,7 @@ impl strafe_client::framework::Example for Skybox { //all of these are being moved here models.push(Model{ transform: modeldata.transform, + vertex_buf:modeldata.vertex_buf, entities: modeldata.entities, bind_group: model_bind_group, model_buf: model_buf, @@ -700,10 +716,11 @@ impl strafe_client::framework::Example for Skybox { rpass.set_pipeline(&self.entity_pipeline); for model in self.models.iter() { rpass.set_bind_group(1, &model.bind_group, &[]); + rpass.set_vertex_buffer(0, model.vertex_buf.slice(..)); for entity in model.entities.iter() { - rpass.set_vertex_buffer(0, entity.vertex_buf.slice(..)); - rpass.draw(0..entity.vertex_count, 0..1); + rpass.set_index_buffer(entity.index_buf.slice(..), wgpu::IndexFormat::Uint16); + rpass.draw_indexed(0..entity.index_count, 0, 0..1); } }