From f6a136643d4e974eb7194e0952add7a9fa99c19d Mon Sep 17 00:00:00 2001
From: Nick Fisher <nick.fisher@avinium.com>
Date: Fri, 20 Sep 2024 14:04:43 +0800
Subject: [PATCH] remove image.mat from LFS

---
 materials/image.mat | 55 ++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 52 insertions(+), 3 deletions(-)

diff --git a/materials/image.mat b/materials/image.mat
index 0775f048..132a8de2 100644
--- a/materials/image.mat
+++ b/materials/image.mat
@@ -1,3 +1,52 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:273059c97f96c6848807914d937583864445b51d8e0f1cd98c3e4e0e4bd9f411
-size 1451
+material {
+    name : Image,
+    parameters : [
+        {
+            type : sampler2d,
+            name : image
+        },
+        {
+            type : mat4,
+            name : transform,
+            precision : high
+        },
+        {
+            type : float4,
+            name : backgroundColor
+        },
+        {
+            type : int,
+            name : showImage
+        }
+    ],
+    variables : [
+        imageUV
+    ],
+    vertexDomain : device,
+    depthWrite : false,
+    shadingModel : unlit,
+    variantFilter : [ skinning, shadowReceiver, vsm ],
+    culling: none
+}
+
+vertex {
+    void materialVertex(inout MaterialVertexInputs material) {
+        material.imageUV.st = getPosition().st * 0.5 + 0.5;
+    }
+}
+
+fragment {
+    void material(inout MaterialInputs material) {
+       prepareMaterial(material);
+       highp vec2 uv = (materialParams.transform * vec4(saturate(variable_imageUV.st), 1.0, 1.0)).st;
+        if (materialParams.showImage == 0 || uv.s > 1.0 || uv.s < 0.0 || uv.t < 0.0 || uv.t > 1.0) {
+            material.baseColor = materialParams.backgroundColor;
+        } else {
+            uv.t = 1.0 - uv.t;
+            vec4 color = max(texture(materialParams_image, uv.st), 0.0);
+            color.rgb *= color.a;
+            // Manual, pre-multiplied srcOver with opaque destination optimization
+            material.baseColor.rgb = color.rgb + materialParams.backgroundColor.rgb * (1.0 - color.a);
+        }
+    }
+}