From a418be886c96bfd032d3e653c238765d5a482f13 Mon Sep 17 00:00:00 2001
From: Xiang Silian <youmiss@163.com>
Date: Tue, 16 Sep 2025 19:25:18 +0800
Subject: [PATCH] asdf

---
 shaders/texture_loading/glsl/bg.frag     |  14 ++++++--------
 shaders/texture_loading/glsl/bg.frag.spv | Bin 744 -> 636 bytes
 shaders/texture_loading/glsl/bg.vert     |  19 +++++++++++++++----
 shaders/texture_loading/glsl/bg.vert.spv | Bin 1344 -> 1524 bytes
 4 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/shaders/texture_loading/glsl/bg.frag b/shaders/texture_loading/glsl/bg.frag
index b0c9aab..ee29b3d 100644
--- a/shaders/texture_loading/glsl/bg.frag
+++ b/shaders/texture_loading/glsl/bg.frag
@@ -1,17 +1,15 @@
 #version 450
 
 // 输入变量（与顶点着色器输出对应）
-layout(location = 0) in vec2 inPosition;
+layout(location = 0) in vec2 inTexCoord;
 
 // 输出颜色
 layout(location = 0) out vec4 outColor;
 
+// 纹理采样器
+layout(binding = 0) uniform sampler2D texSampler;
+
 void main() {
-    // 示例：基于位置生成颜色
-    outColor = vec4(
-        (inPosition.x + 1.0) * 0.5,  // 将X从[-1,1]映射到[0,1]
-        (inPosition.y + 1.0) * 0.5,  // 将Y从[-1,1]映射到[0,1]
-        0,                         // 蓝色分量固定
-        1.0                          // Alpha固定
-    );
+    // 采样纹理
+    outColor = texture(texSampler, inTexCoord);
 }
\ No newline at end of file
diff --git a/shaders/texture_loading/glsl/bg.frag.spv b/shaders/texture_loading/glsl/bg.frag.spv
index 279cea52c870e4b1df7059a12bd83474b3359079..705a77558ccef94e61b6967822580f734dac8db7 100644
GIT binary patch
delta 325
zcmYjN%?bfg7(MfY27^IKB0n#o#KwZMq%>J6vrrgK7Iq%MO7oH)f^v>#;@(bQ=iKw1
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tWl5J`ToX`>EweozQ&U!nP>#5~RYJZsC+5eXM#v+5!Z&GRX>TSCi4U=*7Ipvt

literal 744
zcmYk2UrPc}5XC2T)ihHxwf`7B2GT=C5ET)zFM>iJU<vhM!CcWb=&c_5VtuM!g3j-{
z3tpHzGiT17Id`&|vx3=%m91jOwmNmo2r*%K=l$MGue*px-OH;B7~7V0L^xF|SWX^$
zdkv=)Hf39~nt0$EpeU=ZW<PqAvy%C}!0-3{-g7XV&4NYzF&PJwa5@e~;e0%d!}l?~
z;u<fU4kydeI>8fTeXeJon;k9Vr)Uz*HBN}<w1m?^v<Txcl0sjv(0BqthaA0W-jGtX
zo;ua$;+EpPu#T)PK7S%-en)pvo~?l2COI>};Fsj#(-(eOUaN38d~!5^HI-N7J2K9B
zl5ek4_r9taE<LH^cVuRt4{5&Za&tNTS~A|G^}|)&uC*g{@fQx7e}#DRkGh#vlc5g{
zcgehZf`5s_{Duq+9p4GoOmMWMz1oWDg`Tw6o?`H{*S=z~^<D?c!Ra;7rrGt8j2YDU
Q5Bz)mfZbF3(~oat|GEw~2mk;8

diff --git a/shaders/texture_loading/glsl/bg.vert b/shaders/texture_loading/glsl/bg.vert
index 3dad2ab..f23fcc1 100644
--- a/shaders/texture_loading/glsl/bg.vert
+++ b/shaders/texture_loading/glsl/bg.vert
@@ -2,7 +2,7 @@
 
 // 硬编码的顶点数据 - 4个顶点组成三角形带覆盖整个屏幕
 const vec2 positions[6] = vec2[6](
-	vec2( 1.0,  1.0),  // 右上 - 三角形1
+    vec2( 1.0,  1.0),  // 右上 - 三角形1
     vec2(-1.0,  1.0),  // 左上 - 三角形1
     vec2(-1.0, -1.0),  // 左下 - 三角形1
 
@@ -11,8 +11,19 @@ const vec2 positions[6] = vec2[6](
     vec2( 1.0,  1.0)   // 右上 - 三角形2
 );
 
+// 硬编码的纹理坐标
+const vec2 texCoords[6] = vec2[6](
+    vec2(1.0, 1.0),  // 右上
+    vec2(0.0, 1.0),  // 左上
+    vec2(0.0, 0.0),  // 左下
+    
+    vec2(0.0, 0.0),  // 左下
+    vec2(1.0, 0.0),  // 右下
+    vec2(1.0, 1.0)   // 右上
+);
+
 // 输出变量
-layout(location = 0) out vec2 outPosition;
+layout(location = 0) out vec2 outTexCoord;
 
 void main() {
     // 获取顶点位置
@@ -21,6 +32,6 @@ void main() {
     // 设置输出位置（Vulkan使用不同的坐标系）
     gl_Position = vec4(position, 0.0, 1.0);
     
-    // 输出位置坐标（如果需要传递给片段着色器）
-    outPosition = position;
+    // 输出纹理坐标
+    outTexCoord = texCoords[gl_VertexIndex];
 }
\ No newline at end of file
diff --git a/shaders/texture_loading/glsl/bg.vert.spv b/shaders/texture_loading/glsl/bg.vert.spv
index 5d1f271b5e9174e0253c70ebd2c93cb793c3dd25..b9c73c6c43d12a3eee319d54e98e5b218ebb564a 100644
GIT binary patch
delta 249
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delta 77
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