From 1cee3b52ac1d3e2e98c2d14f2d13709366348cfc Mon Sep 17 00:00:00 2001
From: Quaternions <krakow20@gmail.com>
Date: Thu, 21 Sep 2023 11:55:31 -0700
Subject: [PATCH] switch entity_transforms to storage buffers to remove
 hardcoded part cap

---
 src/main.rs     | 11 ++++++++---
 src/shader.wgsl |  5 ++---
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 564f9483..6dc4c848 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -218,7 +218,7 @@ impl GraphicsData {
 			let model_buf = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
 				label: Some(format!("ModelGraphics{}",i).as_str()),
 				contents: bytemuck::cast_slice(&model_uniforms),
-				usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
+				usage: wgpu::BufferUsages::STORAGE | wgpu::BufferUsages::COPY_DST,
 			});
 			let model_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
 				layout: &self.bind_group_layouts.model,
@@ -321,7 +321,12 @@ impl strafe_client::framework::Example for GraphicsData {
 			| wgpu::Features::TEXTURE_COMPRESSION_ETC2
 			| wgpu::Features::TEXTURE_COMPRESSION_BC
 	}
-
+	fn required_features() -> wgpu::Features {
+		wgpu::Features::STORAGE_RESOURCE_BINDING_ARRAY
+	}
+	fn required_limits() -> wgpu::Limits {
+		wgpu::Limits::default() //framework.rs was using goofy limits that caused me a multi-day headache
+	}
 	fn init(
 		config: &wgpu::SurfaceConfiguration,
 		_adapter: &wgpu::Adapter,
@@ -462,7 +467,7 @@ impl strafe_client::framework::Example for GraphicsData {
 					binding: 0,
 					visibility: wgpu::ShaderStages::VERTEX,
 					ty: wgpu::BindingType::Buffer {
-						ty: wgpu::BufferBindingType::Uniform,
+						ty: wgpu::BufferBindingType::Storage { read_only: true },
 						has_dynamic_offset: false,
 						min_binding_size: None,
 					},
diff --git a/src/shader.wgsl b/src/shader.wgsl
index a2f1fe7f..01260803 100644
--- a/src/shader.wgsl
+++ b/src/shader.wgsl
@@ -41,12 +41,11 @@ fn vs_sky(@builtin(vertex_index) vertex_index: u32) -> SkyOutput {
 	return result;
 }
 
-const MAX_ENTITY_INSTANCES=1024;
 //group 1 is the model
 @group(1)
 @binding(0)
-var<uniform> entity_transforms: array<mat4x4<f32>,MAX_ENTITY_INSTANCES>;
-//var<uniform> entity_texture_transforms: array<mat3x3<f32>,MAX_ENTITY_INSTANCES>;
+var<storage> entity_transforms: array<mat4x4<f32>>;
+//entity_texture_transforms: mat3x3<f32>;
 //my fancy idea is to create a megatexture for each model that includes all the textures each intance will need
 //the texture transform then maps the texture coordinates to the location of the specific texture
 //how to do no texture?