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chunk instances according to limits

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Quaternions 2023-09-26 17:54:52 -07:00
parent f0b3e87abb
commit 8fc87a59ce
1 changed files with 7 additions and 6 deletions
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13
src/main.rs
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@ -215,11 +215,14 @@ impl GraphicsData {
}
//drain the modeldata vec so entities can be /moved/ to models.entities
let mut instance_count=0;
let uniform_buffer_binding_size=<GraphicsData as framework::Example>::required_limits().max_uniform_buffer_binding_size as usize;
let chunk_size=uniform_buffer_binding_size/MODEL_BUFFER_SIZE_BYTES;
self.models.reserve(modeldatas.len());
for (i,modeldata) in modeldatas.drain(..).enumerate() {
let n_instances=modeldata.instances.len();
if 0<n_instances{
let model_uniforms = get_instances_buffer_data(&modeldata.instances);
instance_count+=n_instances;
for instances_chunk in modeldata.instances.rchunks(chunk_size){
let model_uniforms = get_instances_buffer_data(instances_chunk);
let model_buf = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
label: Some(format!("Model{} Buf",i).as_str()),
contents: bytemuck::cast_slice(&model_uniforms),
@ -258,9 +261,8 @@ impl GraphicsData {
usage: wgpu::BufferUsages::VERTEX,
});
//all of these are being moved here
instance_count+=n_instances;
self.models.push(ModelGraphics{
instances:modeldata.instances,
instances:instances_chunk.to_vec(),
vertex_buf,
entities: modeldata.entities.iter().map(|indices|{
let index_buf = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
@ -276,8 +278,6 @@ impl GraphicsData {
bind_group: model_bind_group,
model_buf,
});
}else{
println!("WARNING: Model{} has 0 instances",i);
}
}
println!("Graphics Objects: {}",self.models.len());
@ -286,6 +286,7 @@ impl GraphicsData {
}
const MODEL_BUFFER_SIZE:usize=4*4 + 2*2 + 2+2 + 4;//let size=std::mem::size_of::<ModelInstance>();
const MODEL_BUFFER_SIZE_BYTES:usize=MODEL_BUFFER_SIZE*4;
fn get_instances_buffer_data(instances:&[ModelInstance]) -> Vec<f32> {
let mut raw = Vec::with_capacity(MODEL_BUFFER_SIZE*instances.len());
for (i,mi) in instances.iter().enumerate(){