From 96c24da077eb702a2e4d5be7e6d5f4a979760da3 Mon Sep 17 00:00:00 2001
From: Xiang Silian <youmiss@163.com>
Date: Wed, 22 Oct 2025 18:13:10 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E5=8F=8C=E7=BA=B9=E7=90=86?=
 =?UTF-8?q?=E9=87=87=E6=A0=B7?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 shaders/texture_loading/glsl/texture.frag     |  20 ++++++++++++++----
 shaders/texture_loading/glsl/texture.frag.spv | Bin 1144 -> 1508 bytes
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/shaders/texture_loading/glsl/texture.frag b/shaders/texture_loading/glsl/texture.frag
index 6943e81..4b643fd 100644
--- a/shaders/texture_loading/glsl/texture.frag
+++ b/shaders/texture_loading/glsl/texture.frag
@@ -1,6 +1,7 @@
 #version 450
 
 layout (binding = 1) uniform sampler2D samplerColor;
+layout (binding = 2) uniform sampler2D samplerColor_ex;
 
 layout (location = 0) in vec2 inUV;
 layout (location = 1) in vec3 inNormal;
@@ -11,16 +12,27 @@ layout (location = 0) out vec4 outFragColor;
 void main() 
 {
 	vec4 color = texture(samplerColor, inUV);
+	vec4 color_ex = texture(samplerColor_ex, inUV);
 
 	vec3 N = normalize(inNormal);
 
 	vec4 textureColor = color;
-	if (textureColor.a < 0.1) {
+
+	//if (textureColor.a < 0.1) 
+	//{
         //textureColor = vec4(0.2, 0.2, 0.2, 0.5); 
-		discard;
-    }
+	//	discard;
+    //}
+
+	// 计算与 (0,0,1) 的点乘
+    float ndot = dot(N, vec3(0.0, 0.0, -1.0));
+
+	// 保证结果 >= 0
+    ndot = max(ndot, 0.0);
 	
-	outFragColor = textureColor;
+	vec4 blendedColor = mix(color_ex, color, ndot);
+
+	outFragColor = blendedColor;
 
 //	outFragColor = vec4(1, 0, 0, 1);
 }
\ No newline at end of file
diff --git a/shaders/texture_loading/glsl/texture.frag.spv b/shaders/texture_loading/glsl/texture.frag.spv
index dfcd42017eaac9658a8b5899a706db142cdecfd5..6bbc39db4e7864325193b710f078485bd09183db 100644
GIT binary patch
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