Add Origin Indicator drawable

openVulkanoCpp/Shader/originIndicator.vert

@@ -0,0 +1,23 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(set = 0, binding = 0) uniform NodeData
+{
+	mat4 world;
+} node;
+
+layout(set = 1, binding = 0) uniform CameraData
+{
+	mat4 viewProjection;
+} cam;
+
+layout(location = 0) out vec4 color;
+
+void main()
+{
+	int i = gl_VertexIndex & -2;
+	color = vec4(i == 0, i == 2, i == 4, 1);
+	vec4 position = color * (gl_VertexIndex & 1);
+	position.w = 1;
+	gl_Position = cam.viewProjection * node.world * position;
+}