trans chunks are visible again!

kubi/shaders/world.wgsl

@@ -45,3 +45,8 @@ fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
   }
   return color;
 }
+
+@fragment
+fn fs_main_trans(in: VertexOutput) -> @location(0) vec4<f32> {
+  return textureSample(t_diffuse, s_diffuse, in.uv, in.tex_index);
+}

kubi/src/rendering.rs

@@ -77,6 +77,7 @@ pub fn render_master(storages: AllStoragesViewMut) {
     storages.run_with_data(world::draw_world, &mut data);
     storages.run_with_data(selection_box::draw_selection_box, &mut data);
     storages.run_with_data(entities::render_entities, &mut data);
+    storages.run_with_data(world::rpass_submit_trans_bundle, &mut data);
   }
   storages.run_with_data(kubi_ui_draw, &mut data);
 

kubi/src/rendering/world.rs

@@ -1,12 +1,12 @@
 use glam::Vec3;
-use shipyard::{AllStoragesView, IntoIter, NonSendSync, Unique, UniqueView, View};
+use shipyard::{AllStoragesView, IntoIter, NonSendSync, Unique, UniqueView, UniqueViewMut, View};
 use kubi_shared::chunk::CHUNK_SIZE;
 use crate::{
   camera::Camera,
   prefabs::GpuPrefabs,
   world::{ChunkMeshStorage, ChunkStorage},
 };
-use super::{camera_uniform::CameraUniformBuffer, depth::DepthTexture, RenderCtx};
+use super::{camera_uniform::CameraUniformBuffer, depth::DepthTexture, RenderCtx, Renderer};
 
 mod pipeline;
 mod vertex;
@@ -15,19 +15,22 @@ pub use vertex::ChunkVertex;
 #[derive(Unique)]
 pub struct WorldRenderState {
   pub pipeline: wgpu::RenderPipeline,
-  //pub trans_chunk_queue: Vec<IVec3>,
+  pub pipeline_trans: wgpu::RenderPipeline,
+  pub trans_bundle: Option<wgpu::RenderBundle>,
 }
 
 pub fn init_world_render_state(storages: AllStoragesView) {
+  let (pipeline, pipeline_trans) = storages.run(pipeline::init_world_pipeline);
   storages.add_unique(WorldRenderState {
-    pipeline: storages.run(pipeline::init_world_pipeline),
-    //trans_chunk_queue: Vec::with_capacity(512),
+    pipeline, pipeline_trans,
+    trans_bundle: None,
   })
 }
 
 pub fn draw_world(
   ctx: &mut RenderCtx,
-  state: UniqueView<WorldRenderState>,
+  mut state: UniqueViewMut<WorldRenderState>,
+  renderer: UniqueView<Renderer>,
   camera_ubo: UniqueView<CameraUniformBuffer>,
   depth: UniqueView<DepthTexture>,
   textures: UniqueView<GpuPrefabs>,
@@ -63,6 +66,23 @@ pub fn draw_world(
   render_pass.set_bind_group(0, &textures.block_diffuse_bind_group, &[]);
   render_pass.set_bind_group(1, &camera_ubo.camera_bind_group, &[]);
 
+  let mut trans_bundle_used = false;
+  let mut trans_bundle = renderer.device().create_render_bundle_encoder(&wgpu::RenderBundleEncoderDescriptor {
+    label: Some("trans_bundle_encoder"),
+    color_formats: &[Some(renderer.surface_config().format)],
+    depth_stencil: Some(wgpu::RenderBundleDepthStencil {
+      format: depth.depth_texture.format(),
+      depth_read_only: true,
+      stencil_read_only: true,
+    }),
+    sample_count: 1,
+    multiview: None,
+  });
+
+  trans_bundle.set_pipeline(&state.pipeline_trans);
+  trans_bundle.set_bind_group(0, &textures.block_diffuse_bind_group, &[]);
+  trans_bundle.set_bind_group(1, &camera_ubo.camera_bind_group, &[]);
+
   for (&position, chunk) in &chunks.chunks {
     if let Some(key) = chunk.mesh_index {
       let mesh = meshes.get(key).expect("Mesh index pointing to nothing");
@@ -81,16 +101,61 @@ pub fn draw_world(
       }
 
       //Draw chunk mesh
-      if mesh.main.index.size() > 0 {
+      if mesh.main.index_len > 0 {
         render_pass.set_index_buffer(mesh.main.index.slice(..), wgpu::IndexFormat::Uint32);
         render_pass.set_vertex_buffer(0, mesh.main.vertex.slice(..));
         render_pass.draw_indexed(0..mesh.main.index_len, 0, 0..1);
       }
 
-      //TODO trans chunks
-      // if mesh.trans_index_buffer.len() > 0 {
-      //   trans_queue.0.push(position);
-      // }
+      //Draw transparent chunk mesh
+      if mesh.trans.index_len > 0 {
+        trans_bundle_used = true;
+        trans_bundle.set_index_buffer(mesh.trans.index.slice(..), wgpu::IndexFormat::Uint32);
+        trans_bundle.set_vertex_buffer(0, mesh.trans.vertex.slice(..));
+        trans_bundle.draw_indexed(0..mesh.trans.index_len, 0, 0..1);
+      }
     }
   }
+
+  drop(render_pass);
+
+  if trans_bundle_used {
+    let bundle = trans_bundle.finish(&wgpu::RenderBundleDescriptor {
+      label: Some("trans_bundle"),
+    });
+    state.trans_bundle = Some(bundle);
+  } else {
+    state.trans_bundle = None;
+  }
+}
+
+pub fn rpass_submit_trans_bundle(
+  ctx: &mut RenderCtx,
+  state: UniqueView<WorldRenderState>,
+  depth: UniqueView<DepthTexture>,
+) {
+  let Some(bundle) = state.trans_bundle.as_ref() else {
+    return
+  };
+  let mut rpass = ctx.encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
+    label: Some("rpass_submit_trans_bundle"),
+    color_attachments: &[Some(wgpu::RenderPassColorAttachment {
+      view: ctx.surface_view,
+      resolve_target: None,
+      ops: wgpu::Operations {
+        load: wgpu::LoadOp::Load,
+        store: wgpu::StoreOp::Store,
+      },
+    })],
+    depth_stencil_attachment: Some(wgpu::RenderPassDepthStencilAttachment {
+      view: &depth.depth_view,
+      depth_ops: Some(wgpu::Operations {
+        load: wgpu::LoadOp::Load,
+        store: wgpu::StoreOp::Store,
+      }),
+      stencil_ops: None,
+    }),
+    ..Default::default()
+  });
+  rpass.execute_bundles(Some(bundle));
 }

kubi/src/rendering/world/pipeline.rs

@@ -9,7 +9,7 @@ pub fn init_world_pipeline(
   depth: UniqueView<DepthTexture>,
   textures: UniqueView<GpuPrefabs>,
   camera_ubo: UniqueView<CameraUniformBuffer>,
-) -> wgpu::RenderPipeline {
+) -> (wgpu::RenderPipeline, wgpu::RenderPipeline) {
   let shader = ren.device().create_shader_module(
     wgpu::include_wgsl!("../../../shaders/world.wgsl")
   );
@@ -23,7 +23,7 @@ pub fn init_world_pipeline(
     push_constant_ranges: &[],
   });
 
-  ren.device().create_render_pipeline(&wgpu::RenderPipelineDescriptor {
+  let pipeline_main = ren.device().create_render_pipeline(&wgpu::RenderPipelineDescriptor {
     label: Some("world_pipeline"),
     layout: Some(&world_pipeline_layout),
     fragment: Some(wgpu::FragmentState {
@@ -62,5 +62,48 @@ pub fn init_world_pipeline(
     }),
     multisample: wgpu::MultisampleState::default(),
     multiview: None,
-  })
+  });
+
+  let pipeline_trans = ren.device().create_render_pipeline(&wgpu::RenderPipelineDescriptor {
+    label: Some("world_pipeline_trans"),
+    layout: Some(&world_pipeline_layout),
+    fragment: Some(wgpu::FragmentState {
+      module: &shader,
+      entry_point: "fs_main_trans",
+      compilation_options: wgpu::PipelineCompilationOptions::default(),
+      targets: &[Some(wgpu::ColorTargetState {
+        format: ren.surface_config().format,
+        blend: Some(wgpu::BlendState::ALPHA_BLENDING),
+        write_mask: wgpu::ColorWrites::COLOR,
+      })],
+    }),
+    vertex: wgpu::VertexState {
+      module: &shader,
+      entry_point: "vs_main",
+      compilation_options: wgpu::PipelineCompilationOptions::default(),
+      buffers: &[
+        ChunkVertex::LAYOUT,
+      ],
+    },
+    primitive: wgpu::PrimitiveState {
+      topology: wgpu::PrimitiveTopology::TriangleList,
+      strip_index_format: None,
+      cull_mode: None,
+      front_face: wgpu::FrontFace::Ccw,
+      unclipped_depth: false,
+      polygon_mode: wgpu::PolygonMode::Fill,
+      conservative: false,
+    },
+    depth_stencil: Some(wgpu::DepthStencilState {
+      format: depth.depth_texture.format(),
+      depth_write_enabled: false,
+      depth_compare: wgpu::CompareFunction::Less,
+      stencil: wgpu::StencilState::default(),
+      bias: wgpu::DepthBiasState::default(),
+    }),
+    multisample: wgpu::MultisampleState::default(),
+    multiview: None,
+  });
+
+  (pipeline_main, pipeline_trans)
 }

kubi/src/world/loading.rs

@@ -362,9 +362,9 @@ fn process_completed_tasks(
 
         let trans_buffer_pair = BufferPair {
           vertex: vtx_buffer_trans,
-          vertex_len: vertices.len() as u32,
+          vertex_len: trans_vertices.len() as u32,
           index: idx_buffer_trans,
-          index_len: indices.len() as u32,
+          index_len: trans_indices.len() as u32,
         };
 
         let mesh = ChunkMesh {

kubi/src/world/mesh.rs

@@ -33,7 +33,7 @@ pub fn generate_mesh(position: IVec3, data: MeshGenData) -> (
   };
 
   let mut builder = MeshBuilder::new_with_offset((position * CHUNK_SIZE as i32).as_vec3());
-  let mut trans_builder = MeshBuilder::new();
+  let mut trans_builder = MeshBuilder::new_with_offset((position * CHUNK_SIZE as i32).as_vec3());
 
   for x in 0..CHUNK_SIZE as i32 {
     for y in 0..CHUNK_SIZE as i32 {