Implemented Depth Buffering

shaders/shader.vert

@@ -6,7 +6,7 @@ layout(set = 0, binding = 0) uniform UniformBufferObject{
     mat4 proj;
 }ubo;
 
-layout(location = 0) in vec2 inPosition;
+layout(location = 0) in vec3 inPosition;
 layout(location = 1) in vec3 inColor;
 layout(location = 2) in vec2 inTexCoord;
 
@@ -14,10 +14,7 @@ layout(location = 0) out vec3 fragColor;
 layout(location = 1) out vec2 fragTexCoord;
 
 void main(){
-    // gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
-    // fragColor = colors[gl_VertexIndex];
-    // gl_Position = vec4(inPosition, 0.0, 1.0);
-    gl_Position = ubo.proj * ubo.view * ubo.model * vec4(inPosition, 0.0, 1.0);
+    gl_Position = ubo.proj * ubo.view * ubo.model * vec4(inPosition, 1.0);
     fragColor = inColor;
     fragTexCoord = inTexCoord;
 }