From 98fafa971aa400437d775bb47fd99f264cbcb372 Mon Sep 17 00:00:00 2001
From: Peter Li <peterino>
Date: Fri, 18 Apr 2025 20:05:26 -0700
Subject: [PATCH] vertex buffer ssbos working

---
 engine/rend/src/sgpu/renderer.zig | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/engine/rend/src/sgpu/renderer.zig b/engine/rend/src/sgpu/renderer.zig
index 426df47..7348db6 100644
--- a/engine/rend/src/sgpu/renderer.zig
+++ b/engine/rend/src/sgpu/renderer.zig
@@ -106,7 +106,7 @@ pub const Renderer = struct {
     }
 
     pub fn createMeshPipeline(self: *@This()) !void {
-        const vertex = try self.loadShader("meshes.vert", sample_vert.LoadArgs);
+        const vertex = try self.loadShader("meshes.vert", meshes_vert.LoadArgs);
         const fragment = try self.loadShader("lit_mesh.frag", lit_mesh_frag.LoadArgs);
 
         var pci = std.mem.zeroes(gpu.GPUGraphicsPipelineCreateInfo);
@@ -149,7 +149,7 @@ pub const Renderer = struct {
 
         // todo.. sparse uploads
         self.ssboScene = self.device.createGPUBuffer(&.{
-            .usage = .{ .bufferusageGraphicsStorageRead = true },
+            .usage = .{ .bufferusageGraphicsStorageRead = true, .bufferusageVertex = true },
             .size = MaxObjectCount * @sizeOf(meshes_vert.Scene),
             .props = 0,
         });
@@ -205,7 +205,7 @@ pub const Renderer = struct {
         self.testPipeline = self.device.createGPUGraphicsPipeline(&pci);
 
         self.colorBuffer = self.device.createGPUBuffer(&.{
-            .usage = .{ .bufferusageVertex = true },
+            .usage = .{ .bufferusageVertex = true, .bufferusageGraphicsStorageRead = true },
             .size = 8192 * 2,
             .props = 0,
         });
@@ -277,7 +277,6 @@ pub const Renderer = struct {
         // map and upload Uniforms here
 
         const copyPass = cmd.beginGPUCopyPass();
-        defer copyPass.endGPUCopyPass();
         copyPass.uploadToGPUBuffer(&.{ .transfer_buffer = self.colorBufferTransfer, .offset = 0 }, &.{
             .buffer = self.colorBuffer,
             .offset = 0,
@@ -288,6 +287,7 @@ pub const Renderer = struct {
             upload.func(upload.ptr, copyPass);
         }
 
+        copyPass.endGPUCopyPass();
         if (!cmd.submitGPUCommandBuffer()) {
             core.graphics_log("submit gpu command buffer SDL ERROR: {s}", .{sdl3.getError()});
         }