Add trail to show where we've been

trailfragshader.txt

@@ -0,0 +1,11 @@
+#version 460 core
+out vec4 FragColor;
+
+in vec3 FragPos;
+
+uniform vec3 objectcolor;
+
+void main()
+{
+    FragColor = vec4(objectcolor, 1.0);
+}

trailshader.txt

@@ -0,0 +1,15 @@
+#version 460 core
+layout (location = 0) in vec3 aPos;
+
+out vec3 FragPos;
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+
+void main()
+{
+    FragPos = vec3(model * vec4(aPos, 1.0));
+
+    gl_Position = projection * view * vec4(FragPos, 1.0);
+}