first commit

assets/screen.vs

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+#version 330 core
+layout (location = 0) in vec2 aPos;
+layout (location = 1) in vec2 aTexCoord;
+
+out vec2 TexCoord;
+
+void main() {
+    gl_Position = vec4(aPos.xy, 0.0, 1.0);
+    TexCoord = aTexCoord;
+}