From 42e3ac91af1c5251235f226e76443f0c5675dcbd Mon Sep 17 00:00:00 2001
From: cosmonaut <evan@moonside.games>
Date: Sat, 27 Jan 2024 03:44:19 +0000
Subject: [PATCH] Vertex instance input shortcut (#53)

Reviewed-on: https://gitea.moonside.games/MoonsideGames/MoonWorks/pulls/53
---
 src/Graphics/RefreshStructs.cs             | 4 ++--
 src/Graphics/VertexBindingAndAttributes.cs | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/Graphics/RefreshStructs.cs b/src/Graphics/RefreshStructs.cs
index d2b8407..6b046bd 100644
--- a/src/Graphics/RefreshStructs.cs
+++ b/src/Graphics/RefreshStructs.cs
@@ -127,12 +127,12 @@ namespace MoonWorks.Graphics
 		public uint Stride;
 		public VertexInputRate InputRate;
 
-		public static VertexBinding Create<T>(uint binding = 0) where T : unmanaged
+		public static VertexBinding Create<T>(uint binding = 0, VertexInputRate inputRate = VertexInputRate.Vertex) where T : unmanaged
 		{
 			return new VertexBinding
 			{
 				Binding = binding,
-				InputRate = VertexInputRate.Vertex,
+				InputRate = inputRate,
 				Stride = (uint) Marshal.SizeOf<T>()
 			};
 		}
diff --git a/src/Graphics/VertexBindingAndAttributes.cs b/src/Graphics/VertexBindingAndAttributes.cs
index cff9d55..44217eb 100644
--- a/src/Graphics/VertexBindingAndAttributes.cs
+++ b/src/Graphics/VertexBindingAndAttributes.cs
@@ -14,9 +14,9 @@ namespace MoonWorks.Graphics
 			VertexAttributes = attributes;
 		}
 
-		public static VertexBindingAndAttributes Create<T>(uint bindingIndex) where T : unmanaged, IVertexType
+		public static VertexBindingAndAttributes Create<T>(uint bindingIndex, uint locationOffset = 0, VertexInputRate inputRate = VertexInputRate.Vertex) where T : unmanaged, IVertexType
 		{
-			VertexBinding binding = VertexBinding.Create<T>(bindingIndex);
+			VertexBinding binding = VertexBinding.Create<T>(bindingIndex, inputRate);
 			VertexAttribute[] attributes = new VertexAttribute[T.Formats.Length];
 			uint offset = 0;
 
@@ -27,7 +27,7 @@ namespace MoonWorks.Graphics
 				attributes[i] = new VertexAttribute
 				{
 					Binding = bindingIndex,
-					Location = i,
+					Location = locationOffset + i,
 					Format = format,
 					Offset = offset
 				};