use crate::ecs::world::Entity;
use std::collections::HashMap;
use wgpu::util::DeviceExt;
use super::types::{
ClusterUniforms, DrawIndexedIndirect, GpuEntityRegistry, GpuLocalTransform, INITIAL_INSTANCES,
INITIAL_LIGHTS, INITIAL_MATERIALS, LightData, LightGrid, MAX_LIGHTS_PER_CLUSTER, MaterialData,
MaterialTextures, ModelMatrix, ObjectData, TOTAL_CLUSTERS,
};
pub(super) type BatchRange = (u32, u32, u32, u32);
pub(super) struct WorldGpuBuffers {
pub materials_buffer: wgpu::Buffer,
pub materials_buffer_size: usize,
pub transform_buffer: wgpu::Buffer,
pub transform_buffer_size: usize,
pub object_buffer: wgpu::Buffer,
pub object_buffer_size: usize,
pub lights_buffer: wgpu::Buffer,
pub lights_buffer_size: usize,
pub custom_data_buffer: wgpu::Buffer,
pub custom_data_buffer_size: usize,
pub indirect_buffer: wgpu::Buffer,
pub indirect_buffer_size: usize,
pub indirect_reset_buffer: wgpu::Buffer,
pub visible_indices_buffer: wgpu::Buffer,
pub phase1_indirect_buffer: wgpu::Buffer,
pub phase1_indirect_reset_buffer: wgpu::Buffer,
pub phase1_visible_indices_buffer: wgpu::Buffer,
pub local_transform_buffer: wgpu::Buffer,
pub local_transform_buffer_size: usize,
pub instance_bind_group: wgpu::BindGroup,
pub phase1_instance_bind_group: wgpu::BindGroup,
pub culling_bind_group: Option<wgpu::BindGroup>,
pub phase1_culling_bind_group: Option<wgpu::BindGroup>,
pub transform_compute_bind_group: Option<wgpu::BindGroup>,
pub cluster_uniforms_buffer: wgpu::Buffer,
pub light_grid_buffer: wgpu::Buffer,
pub light_grid_reset_buffer: wgpu::Buffer,
pub light_indices_buffer: wgpu::Buffer,
pub cluster_bounds_bind_group: wgpu::BindGroup,
pub cluster_assign_bind_group: Option<wgpu::BindGroup>,
pub instanced_local_matrix_buffer: wgpu::Buffer,
pub instanced_local_matrix_buffer_size: usize,
pub instanced_compute_bind_group: Option<wgpu::BindGroup>,
}
impl WorldGpuBuffers {
pub fn new(
device: &wgpu::Device,
instance_bind_group_layout: &wgpu::BindGroupLayout,
cluster_bounds_bind_group_layout: &wgpu::BindGroupLayout,
cluster_bounds_buffer: &wgpu::Buffer,
morph_displacement_buffer: &wgpu::Buffer,
) -> Self {
let materials_buffer_size = INITIAL_MATERIALS;
let materials_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Mesh Materials Buffer (Per-World)"),
size: (std::mem::size_of::<MaterialData>() * materials_buffer_size) as u64,
usage: wgpu::BufferUsages::STORAGE
| wgpu::BufferUsages::COPY_DST
| wgpu::BufferUsages::COPY_SRC,
mapped_at_creation: false,
});
let transform_buffer_size = INITIAL_INSTANCES;
let transform_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Mesh Transform Buffer (Per-World)"),
size: (std::mem::size_of::<ModelMatrix>() * transform_buffer_size) as u64,
usage: wgpu::BufferUsages::STORAGE
| wgpu::BufferUsages::COPY_DST
| wgpu::BufferUsages::COPY_SRC,
mapped_at_creation: false,
});
let object_buffer_size = INITIAL_INSTANCES;
let object_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Mesh Object Buffer (Per-World)"),
size: (std::mem::size_of::<ObjectData>() * object_buffer_size) as u64,
usage: wgpu::BufferUsages::STORAGE
| wgpu::BufferUsages::COPY_DST
| wgpu::BufferUsages::COPY_SRC,
mapped_at_creation: false,
});
let lights_buffer_size = INITIAL_LIGHTS;
let lights_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Mesh Lights Buffer (Per-World)"),
size: (std::mem::size_of::<LightData>() * lights_buffer_size) as u64,
usage: wgpu::BufferUsages::STORAGE
| wgpu::BufferUsages::COPY_DST
| wgpu::BufferUsages::COPY_SRC,
mapped_at_creation: false,
});
let custom_data_buffer_size = INITIAL_INSTANCES;
let custom_data_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Mesh Custom Data Buffer (Per-World)"),
size: (std::mem::size_of::<[f32; 4]>() * custom_data_buffer_size) as u64,
usage: wgpu::BufferUsages::STORAGE
| wgpu::BufferUsages::COPY_DST
| wgpu::BufferUsages::COPY_SRC,
mapped_at_creation: false,
});
let indirect_buffer_size = INITIAL_INSTANCES;
let indirect_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Indirect Draw Buffer (Per-World)"),
size: (std::mem::size_of::<DrawIndexedIndirect>() * indirect_buffer_size) as u64,
usage: wgpu::BufferUsages::INDIRECT
| wgpu::BufferUsages::STORAGE
| wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let indirect_reset_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Indirect Reset Buffer (Per-World)"),
size: (std::mem::size_of::<DrawIndexedIndirect>() * indirect_buffer_size) as u64,
usage: wgpu::BufferUsages::COPY_SRC | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let visible_indices_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Visible Indices Buffer (Per-World)"),
size: (std::mem::size_of::<u32>() * INITIAL_INSTANCES) as u64,
usage: wgpu::BufferUsages::STORAGE | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let phase1_indirect_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Phase 1 Indirect Buffer (Per-World)"),
size: (std::mem::size_of::<DrawIndexedIndirect>() * indirect_buffer_size) as u64,
usage: wgpu::BufferUsages::INDIRECT
| wgpu::BufferUsages::STORAGE
| wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let phase1_indirect_reset_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Phase 1 Indirect Reset Buffer (Per-World)"),
size: (std::mem::size_of::<DrawIndexedIndirect>() * indirect_buffer_size) as u64,
usage: wgpu::BufferUsages::COPY_SRC | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let phase1_visible_indices_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Phase 1 Visible Indices Buffer (Per-World)"),
size: (std::mem::size_of::<u32>() * INITIAL_INSTANCES) as u64,
usage: wgpu::BufferUsages::STORAGE | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let local_transform_buffer_size = INITIAL_INSTANCES;
let local_transform_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Local Transform Buffer (Per-World)"),
size: (std::mem::size_of::<GpuLocalTransform>() * local_transform_buffer_size) as u64,
usage: wgpu::BufferUsages::STORAGE
| wgpu::BufferUsages::COPY_DST
| wgpu::BufferUsages::COPY_SRC,
mapped_at_creation: false,
});
let cluster_uniforms_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Cluster Uniforms Buffer (Per-World)"),
size: std::mem::size_of::<ClusterUniforms>() as u64,
usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let light_grid_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Light Grid Buffer (Per-World)"),
size: (std::mem::size_of::<LightGrid>() * TOTAL_CLUSTERS as usize) as u64,
usage: wgpu::BufferUsages::STORAGE | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let light_grid_reset_data: Vec<LightGrid> = vec![
LightGrid {
offset: 0,
count: 0
};
TOTAL_CLUSTERS as usize
];
let light_grid_reset_buffer =
device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
label: Some("Light Grid Reset Buffer (Per-World)"),
contents: bytemuck::cast_slice(&light_grid_reset_data),
usage: wgpu::BufferUsages::COPY_SRC,
});
let light_indices_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Light Indices Buffer (Per-World)"),
size: (std::mem::size_of::<u32>()
* TOTAL_CLUSTERS as usize
* MAX_LIGHTS_PER_CLUSTER as usize) as u64,
usage: wgpu::BufferUsages::STORAGE | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let instanced_local_matrix_buffer_size = INITIAL_INSTANCES;
let instanced_local_matrix_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Instanced Local Matrix Buffer (Per-World)"),
size: (std::mem::size_of::<[[f32; 4]; 4]>() * instanced_local_matrix_buffer_size)
as u64,
usage: wgpu::BufferUsages::STORAGE
| wgpu::BufferUsages::COPY_DST
| wgpu::BufferUsages::COPY_SRC,
mapped_at_creation: false,
});
let cluster_bounds_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
label: Some("Cluster Bounds Bind Group (Per-World)"),
layout: cluster_bounds_bind_group_layout,
entries: &[
wgpu::BindGroupEntry {
binding: 0,
resource: cluster_uniforms_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 1,
resource: cluster_bounds_buffer.as_entire_binding(),
},
],
});
let instance_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
label: Some("Mesh Instance Bind Group (Per-World)"),
layout: instance_bind_group_layout,
entries: &[
wgpu::BindGroupEntry {
binding: 0,
resource: transform_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 1,
resource: materials_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 2,
resource: object_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 3,
resource: lights_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 4,
resource: visible_indices_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 5,
resource: custom_data_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 6,
resource: morph_displacement_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 7,
resource: light_grid_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 8,
resource: light_indices_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 9,
resource: cluster_uniforms_buffer.as_entire_binding(),
},
],
});
let phase1_instance_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
label: Some("Phase 1 Instance Bind Group (Per-World)"),
layout: instance_bind_group_layout,
entries: &[
wgpu::BindGroupEntry {
binding: 0,
resource: transform_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 1,
resource: materials_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 2,
resource: object_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 3,
resource: lights_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 4,
resource: phase1_visible_indices_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 5,
resource: custom_data_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 6,
resource: morph_displacement_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 7,
resource: light_grid_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 8,
resource: light_indices_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 9,
resource: cluster_uniforms_buffer.as_entire_binding(),
},
],
});
Self {
materials_buffer,
materials_buffer_size,
transform_buffer,
transform_buffer_size,
object_buffer,
object_buffer_size,
lights_buffer,
lights_buffer_size,
custom_data_buffer,
custom_data_buffer_size,
indirect_buffer,
indirect_buffer_size,
indirect_reset_buffer,
visible_indices_buffer,
phase1_indirect_buffer,
phase1_indirect_reset_buffer,
phase1_visible_indices_buffer,
local_transform_buffer,
local_transform_buffer_size,
instance_bind_group,
phase1_instance_bind_group,
culling_bind_group: None,
phase1_culling_bind_group: None,
transform_compute_bind_group: None,
cluster_uniforms_buffer,
light_grid_buffer,
light_grid_reset_buffer,
light_indices_buffer,
cluster_bounds_bind_group,
cluster_assign_bind_group: None,
instanced_local_matrix_buffer,
instanced_local_matrix_buffer_size,
instanced_compute_bind_group: None,
}
}
}
pub(super) struct WorldRenderState {
pub gpu_registry: GpuEntityRegistry,
pub entity_to_transform_index: HashMap<Entity, u32>,
pub cached_entities: Vec<Entity>,
pub cached_transforms: Vec<ModelMatrix>,
pub cached_objects: Vec<ObjectData>,
pub opaque_instances: Vec<BatchRange>,
pub opaque_double_sided_instances: Vec<BatchRange>,
pub transparent_instances: Vec<BatchRange>,
pub overlay_opaque_instances: Vec<BatchRange>,
pub overlay_opaque_double_sided_instances: Vec<BatchRange>,
pub overlay_transparent_instances: Vec<BatchRange>,
pub instanced_opaque_batches: Vec<BatchRange>,
pub instanced_opaque_double_sided_batches: Vec<BatchRange>,
pub instanced_transparent_batches: Vec<BatchRange>,
pub regular_object_count: u32,
pub instanced_transform_ranges: HashMap<Entity, (u32, u32)>,
pub instanced_compute_dirty: bool,
pub object_count: u32,
pub indirect_reset_count: usize,
pub last_camera_hash: u64,
pub camera_changed: bool,
pub num_directional_lights: u32,
pub num_total_lights: u32,
pub max_hierarchy_depth: u32,
pub hierarchy_dirty: bool,
pub entity_depths: Vec<u32>,
pub entity_parent_indices: Vec<i32>,
pub last_used_frame: u64,
pub gpu_buffers: Option<WorldGpuBuffers>,
pub ibl_brdf_lut_view: Option<wgpu::TextureView>,
pub ibl_irradiance_view: Option<wgpu::TextureView>,
pub ibl_prefiltered_view: Option<wgpu::TextureView>,
pub ibl_irradiance_b_view: Option<wgpu::TextureView>,
pub ibl_prefiltered_b_view: Option<wgpu::TextureView>,
pub ibl_blend_factor: f32,
pub ibl_dirty: bool,
pub cached_name_to_material_id: HashMap<String, u32>,
pub cached_material_map: HashMap<Entity, u32>,
pub cached_custom_data: Vec<[f32; 4]>,
pub cached_transparent_material_ids: std::collections::HashSet<u32>,
pub cached_double_sided_material_ids: std::collections::HashSet<u32>,
pub frames_since_full_rebuild: u64,
pub free_slots_by_group: HashMap<(u32, u32), Vec<u32>>,
pub material_bind_groups: HashMap<u32, wgpu::BindGroup>,
pub material_bind_group_cache_key: HashMap<u32, MaterialTextures>,
pub material_bind_group_found_textures: HashMap<u32, MaterialTextures>,
}
impl WorldRenderState {
pub fn new() -> Self {
Self {
gpu_registry: GpuEntityRegistry::new(),
entity_to_transform_index: HashMap::new(),
cached_entities: Vec::new(),
cached_transforms: Vec::new(),
cached_objects: Vec::new(),
opaque_instances: Vec::new(),
opaque_double_sided_instances: Vec::new(),
transparent_instances: Vec::new(),
overlay_opaque_instances: Vec::new(),
overlay_opaque_double_sided_instances: Vec::new(),
overlay_transparent_instances: Vec::new(),
instanced_opaque_batches: Vec::new(),
instanced_opaque_double_sided_batches: Vec::new(),
instanced_transparent_batches: Vec::new(),
regular_object_count: 0,
instanced_transform_ranges: HashMap::new(),
instanced_compute_dirty: false,
object_count: 0,
indirect_reset_count: 0,
last_camera_hash: 0,
camera_changed: false,
num_directional_lights: 0,
num_total_lights: 0,
max_hierarchy_depth: 0,
hierarchy_dirty: false,
entity_depths: Vec::new(),
entity_parent_indices: Vec::new(),
last_used_frame: 0,
gpu_buffers: None,
ibl_brdf_lut_view: None,
ibl_irradiance_view: None,
ibl_prefiltered_view: None,
ibl_irradiance_b_view: None,
ibl_prefiltered_b_view: None,
ibl_blend_factor: 0.0,
ibl_dirty: false,
cached_name_to_material_id: HashMap::new(),
cached_material_map: HashMap::new(),
cached_custom_data: Vec::new(),
cached_transparent_material_ids: std::collections::HashSet::new(),
cached_double_sided_material_ids: std::collections::HashSet::new(),
frames_since_full_rebuild: 0,
free_slots_by_group: HashMap::new(),
material_bind_groups: HashMap::new(),
material_bind_group_cache_key: HashMap::new(),
material_bind_group_found_textures: HashMap::new(),
}
}
}
impl Default for WorldRenderState {
fn default() -> Self {
Self::new()
}
}