代码写完了，下一步调试运行

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

@@ -0,0 +1,31 @@
+#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;
+}