From e13aab18088569f436e4109dca169f83c0e8dce4 Mon Sep 17 00:00:00 2001
From: Jarrod Doyle <thejarroddoyle@gmail.com>
Date: Sat, 8 Apr 2023 21:52:52 +0100
Subject: [PATCH] Use the voxel raycast shader

---
 src/renderer.rs | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/src/renderer.rs b/src/renderer.rs
index 271c467..82f5d46 100644
--- a/src/renderer.rs
+++ b/src/renderer.rs
@@ -138,7 +138,7 @@ impl Renderer {
                 });
 
         log::info!("Creating compute pipeline...");
-        let cs_descriptor = wgpu::include_wgsl!("../assets/shaders/image_recolor.wgsl");
+        let cs_descriptor = wgpu::include_wgsl!("../assets/shaders/branchless_dda.wgsl");
         let cs = context.device.create_shader_module(cs_descriptor);
         let compute_layout =
             context
@@ -182,19 +182,6 @@ impl Renderer {
                     entry_point: "compute",
                 });
 
-        let mut encoder = context
-            .device
-            .create_command_encoder(&wgpu::CommandEncoderDescriptor::default());
-
-        let size = render_texture.attributes.size;
-        let mut compute_pass = encoder.begin_compute_pass(&wgpu::ComputePassDescriptor::default());
-        compute_pass.set_pipeline(&compute_pipeline);
-        compute_pass.set_bind_group(0, &compute_bind_group, &[]);
-        compute_pass.dispatch_workgroups(size.width / 8, size.height / 8, 1);
-        drop(compute_pass);
-
-        context.queue.submit(Some(encoder.finish()));
-
         let clear_color = wgpu::Color {
             r: 255.0 / 255.0,
             g: 216.0 / 255.0,
@@ -221,6 +208,13 @@ impl Renderer {
             .device
             .create_command_encoder(&wgpu::CommandEncoderDescriptor::default());
 
+        let size = self.render_texture.attributes.size;
+        let mut compute_pass = encoder.begin_compute_pass(&wgpu::ComputePassDescriptor::default());
+        compute_pass.set_pipeline(&self.compute_pipeline);
+        compute_pass.set_bind_group(0, &self.compute_bind_group, &[]);
+        compute_pass.dispatch_workgroups(size.width / 8, size.height / 8, 1);
+        drop(compute_pass);
+
         let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
             label: Some("Render Pass"),
             color_attachments: &[Some(wgpu::RenderPassColorAttachment {