okay maybe not

app/shaders/default.vert

@@ -0,0 +1,18 @@
+#version 150
+
+#ifdef GL_ES
+precision highp int;
+precision highp float;
+#endif
+
+uniform mat4 ove_mvpmat;
+
+in vec4 a_position;
+in vec2 a_texcoord;
+
+out vec2 ove_texcoord;
+
+void main() {
+    gl_Position = ove_mvpmat * a_position;
+    ove_texcoord = a_texcoord;
+}