super hacky texture index

game/main/assets/shaders/world/chunk.wgsl

@@ -2,6 +2,8 @@
     pbr_fragment::pbr_input_from_standard_material,
     pbr_functions::alpha_discard,
 }
+#import bevy_pbr::mesh_functions::{mesh_position_local_to_world,get_model_matrix,mesh_normal_local_to_world}
+#import bevy_pbr::view_transformations::position_world_to_clip;
 
 #ifdef PREPASS_PIPELINE
 #import bevy_pbr::{
@@ -15,19 +17,19 @@
 }
 #endif
 
-struct ChunkMaterial {
-    array_texture: texture_2d_array<f32>,
-    array_texture_sampler: sampler,
-}
-
-@group(2) @binding(100)
-var<uniform> chunk_material: ChunkMaterial;
 
+@group(2) @binding(100) var array_texture: texture_2d_array<f32>;
+@group(2) @binding(101) var array_texture_sampler: sampler;
 @fragment
 fn fragment(
     in: VertexOutput,
     @builtin(front_facing) is_front: bool,
 ) -> FragmentOutput {
+//	var vin : VertexOutput;
+//	vin.position = in.position;
+//	vin.world_position = in.world_position;
+//	vin.world_normal = in.world_normal;
+//	vin.uv = in.uv;
     // generate a PbrInput struct from the StandardMaterial bindings
     var pbr_input = pbr_input_from_standard_material(in, is_front);
 
@@ -41,10 +43,13 @@ fn fragment(
 #else
     var out: FragmentOutput;
     // apply lighting
-    out.color = apply_pbr_lighting(pbr_input);
 
-    let layer = i32(in.world_position.x) & 0x7;
-    out.color = textureSample(chunk_material.array_texture, chunk_material.array_texture_sampler, in.uv, layer);
+    let layer = u32(in.uv_b.x);
+    out.color = textureSample(array_texture, array_texture_sampler, in.uv, layer);
+
+    out.color *= apply_pbr_lighting(pbr_input);
+
+
 
     // apply in-shader post processing (fog, alpha-premultiply, and also tonemapping, debanding if the camera is non-hdr)
     // note this does not include fullscreen postprocessing effects like bloom.
@@ -55,4 +60,31 @@ fn fragment(
 #endif
 
     return out;
-}
+}
+
+//struct Vertex {
+//    @builtin(instance_index) instance_index: u32,
+//    @location(0) position: vec3<f32>,
+//    @location(1) uv: vec2<f32>,
+//    @location(2) normal: vec3<f32>,
+//    @location(3) texture_index: u32,
+//};
+//
+//struct VOut {
+//    @builtin(position) position: vec4<f32>,
+//	@location(0) world_position: vec4<f32>,
+//	@location(1) world_normal: vec3<f32>,
+//	@location(2) uv: vec2<f32>,
+////    @location(7) @interpolate(flat) texture_index: u32,
+//};
+//
+//@vertex
+//fn vertex(vertex: Vertex) -> VOut {
+//    var out: VOut;
+//    out.world_position = mesh_position_local_to_world(get_model_matrix(vertex.instance_index), vec4<f32>(vertex.position, 1.0));
+//    out.position = position_world_to_clip(out.world_position.xyz);
+////    out.texture_index = vertex.texture_index;
+//    out.uv = vertex.uv;
+//    out.world_normal = mesh_normal_local_to_world(vertex.normal, vertex.instance_index);
+//    return out;
+//}