代码写完了，下一步调试运行

app/src/main/assets/shaders/bg.frag

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+#version 450
+
+// 输入变量（与顶点着色器输出对应）
+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() {
+    // 采样纹理
+    outColor = texture(texSampler, inTexCoord);
+}

app/src/main/assets/shaders/bg.vert

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+#version 450
+
+// 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),  // 左上 - 三角形1
+//     vec2(-1.0, -1.0),  // 左下 - 三角形1
+
+//     vec2(-1.0, -1.0),  // 左下 - 三角形2  
+//     vec2( 1.0, -1.0),  // 右下 - 三角形2
+//     vec2( 1.0,  1.0)   // 右上 - 三角形2
+// );
+
+const float offset = (640-480)/(480.0);
+
+
+const vec2 positions[6] = vec2[6](
+    vec2( 1.0,  -1.0 -offset),  // 右下
+    vec2(1.0,  1.0 + offset),  // 右上 - 三角形1
+    vec2(-1.0, 1.0 + offset),  // 左上 - 三角形1
+
+    vec2(-1.0, 1.0 + offset),  // 左上 - 三角形2  
+    vec2( -1.0, -1.0-offset),  // 左下 - 三角形2
+    vec2( 1.0,  -1.0-offset)   // 右下 - 三角形2
+);
+
+
+
+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
+);
+
+// 定义 Push Constant，只有一个 float
+layout(push_constant) uniform PushConstants {
+    float myValue;
+} pushConstants;
+
+
+// 输出变量
+layout(location = 0) out vec2 outTexCoord;
+
+void main() {
+    // 获取顶点位置
+    vec2 position = positions[gl_VertexIndex];
+    position = position * pushConstants.myValue;
+    
+    // 设置输出位置（Vulkan使用不同的坐标系）
+    gl_Position = vec4(position, 0.0, 1.0);
+    
+    // 输出纹理坐标
+    outTexCoord = texCoords[gl_VertexIndex];
+}

app/src/main/assets/shaders/point_line.frag

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+#version 450
+
+layout(location = 0) in vec3 fragColor;
+layout(location = 1) in vec3 fragLineStart;
+layout(location = 2) in vec3 fragLineEnd;
+
+layout(location = 0) out vec4 outColor;
+
+layout(binding = 0) uniform UniformBufferObject {
+    mat4 proj;
+    mat4 model;
+    mat4 view;
+} ubo;
+
+layout(binding = 1) uniform DashParameters {
+    float dashSize;
+    float gapSize;
+    float dashOffset;
+    float uAASize;
+    int useWorldSpace;
+} dashParams;
+
+void main() {
+    vec2 fragPos = gl_FragCoord.xy;
+    
+    // 网格参数
+    float gridSize = 14.0;           // 网格大小
+    float dotRadius = 6.0;           // 点状半径
+    
+    // 计算当前片段所在的网格和网格中心坐标
+    vec2 gridCoord = fragPos / gridSize;
+    vec2 gridCenter = (floor(gridCoord) + 0.5) * gridSize;
+    
+    // 计算片段到网格中心的距离
+    float distanceToCenter = length(fragPos - gridCenter);
+    
+    // 如果距离超过点状半径，丢弃（创建点状虚线）
+    if (distanceToCenter > dotRadius && fragColor.y > 0.5) {
+        discard;
+    }
+    
+    outColor = vec4(fragColor, 1.0);
+}

app/src/main/assets/shaders/point_line.vert

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+#version 450
+
+layout(location = 0) in vec3 inPosition;
+layout(location = 1) in vec3 inColor;
+layout(location = 2) in vec3 inLineStart;
+layout(location = 3) in vec3 inLineEnd;
+
+layout(location = 0) out vec3 fragColor;
+layout(location = 1) out vec3 fragLineStart;
+layout(location = 2) out vec3 fragLineEnd;
+
+
+layout(binding = 0) uniform UniformBufferObject {
+    mat4 proj;
+    mat4 model;
+    mat4 view;
+} ubo;
+
+layout(push_constant) uniform PushConstants {
+    float myValue;
+} pushConstants;
+
+void main() {
+    mat4 worldviewproj = ubo.proj * ubo.view * ubo.model;
+    //gl_Position = worldviewproj * vec4(inPosition, 1.0);
+
+    vec2 position = vec2(inPosition.xy*2 -1);
+    //gl_Position = vec4(inPosition.xy*2 -1, 0.5, 1.0);
+    position = position * pushConstants.myValue;
+    gl_Position = vec4(position, 0.5, 1.0);
+    
+    fragColor = inColor;
+    
+    fragLineStart = (worldviewproj * vec4(inLineStart, 1.0)).xyz;
+    fragLineEnd = (worldviewproj * vec4(inLineEnd, 1.0)).xyz;
+}

app/src/main/assets/shaders/point_line_solid.frag

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+#version 450
+
+layout(location = 0) in vec3 fragColor;
+
+
+layout(location = 0) out vec4 outColor;
+
+
+void main() {
+    outColor = vec4(1, 0, 0, 1.0);
+}

app/src/main/assets/shaders/point_line_solid.vert

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+#version 450
+
+layout(location = 0) in vec3 inPosition;
+layout(location = 1) in vec3 inColor;
+layout(location = 2) in vec3 inLineStart;
+layout(location = 3) in vec3 inLineEnd;
+
+layout(location = 0) out vec3 fragColor;
+
+layout(binding = 0) uniform UniformBufferObject {
+    mat4 proj;
+    mat4 model;
+    mat4 view;
+} ubo;
+
+void main() {
+    //mat4 worldviewproj = ubo.proj * ubo.view * ubo.model;
+    mat4 mvp = ubo.proj * ubo.view * ubo.model;
+    //gl_Position = worldviewproj * vec4(inPosition, 1.0);
+    gl_Position = mvp * vec4(inPosition, 1.0);
+    
+    fragColor = inColor;
+}

app/src/main/assets/shaders/pointcloud.frag

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+#version 450
+
+// 从顶点着色器接收的颜色
+layout(location = 0) in vec3 fragColor;
+
+// 输出颜色
+layout(location = 0) out vec4 outColor;
+
+void main() {
+    outColor = vec4(fragColor, 1.0); // 使用传入的颜色
+}

app/src/main/assets/shaders/pointcloud.vert

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+#version 450
+
+layout(location = 0) in vec3 inPosition;
+layout(location = 1) in vec3 inColor;
+
+layout(location = 0) out vec3 fragColor;
+
+layout(binding = 0) uniform UniformBufferObject {
+    mat4 proj;
+    mat4 model;
+    mat4 view;
+} ubo;
+
+layout(push_constant) uniform PushConstants {
+    float myValue;
+} pushConstants;
+
+void main() {
+    // 预计算MVP矩阵以减少乘法次数
+    //mat4 mvp = ubo.proj * ubo.view * ubo.model;
+    //vec3 pos = vec3(2.0, inPosition.y, inPosition.z);
+    //gl_Position = mvp * vec4(inPosition, 1.0);
+
+    vec2 position = vec2(inPosition.xy*2 -1);
+    //gl_Position = vec4(inPosition.xy*2 -1, 0.5, 1.0);
+    position = position * pushConstants.myValue;
+    gl_Position = vec4(position, 0.5, 1.0);
+
+    fragColor = inColor;
+    gl_PointSize = 2.0;
+}

app/src/main/assets/shaders/texture.frag

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+#version 450
+
+layout (binding = 1) uniform sampler2D samplerColor;
+
+layout (location = 0) in vec2 inUV;
+layout (location = 1) in vec3 inNormal;
+
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() 
+{
+	vec4 color = texture(samplerColor, inUV);
+
+	vec3 N = normalize(inNormal);
+
+	vec4 textureColor = color;
+	if (textureColor.a < 0.1) {
+        //textureColor = vec4(0.2, 0.2, 0.2, 0.5); 
+		discard;
+    }
+	
+	outFragColor = textureColor;
+
+//	outFragColor = vec4(1, 0, 0, 1);
+}

app/src/main/assets/shaders/texture.vert

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+#version 450
+
+
+layout (location = 0) in vec3 inPos;
+layout (location = 1) in vec2 inUV;
+layout (location = 2) in vec3 inNormal;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 model;
+	vec4 viewPos;
+	float lodBias;
+} ubo;
+
+layout (location = 0) out vec2 outUV;
+layout (location = 1) out vec3 outNormal;
+
+layout(push_constant) uniform PushConstants {
+    float myValue;
+} pushConstants;
+
+out gl_PerVertex 
+{
+    vec4 gl_Position;   
+};
+
+void main() 
+{
+	outUV = inUV;
+
+	vec2 position = vec2(inPos.xy*2 -1);
+    position = position * pushConstants.myValue;
+    gl_Position = vec4(position, 0.5, 1.0);
+
+    vec4 pos = ubo.model * vec4(inPos, 1.0);
+	outNormal = mat3(inverse(transpose(ubo.model))) * inNormal;
+
+}