public void DrawGrid(Rect rect, float zoom, Vector2 panOffset) { if (Event.current.control) { rect.position = Vector2.zero; Vector2 center = rect.size / 2f; Texture2D gridTex = graphEditor.GetGridTexture(); Texture2D crossTex = graphEditor.GetSecondaryGridTexture(); // Offset from origin in tile units float xOffset = -(center.x * zoom + panOffset.x) / gridTex.width; float yOffset = ((center.y - rect.size.y) * zoom + panOffset.y) / gridTex.height; Vector2 tileOffset = new Vector2(xOffset, yOffset); // Amount of tiles float tileAmountX = Mathf.Round(rect.size.x * zoom) / gridTex.width; float tileAmountY = Mathf.Round(rect.size.y * zoom) / gridTex.height; Vector2 tileAmount = new Vector2(tileAmountX, tileAmountY); // Draw tiled background GUI.DrawTextureWithTexCoords(rect, gridTex, new Rect(tileOffset, tileAmount)); GUI.DrawTextureWithTexCoords(rect, crossTex, new Rect(tileOffset + new Vector2(0.5f, 0.5f), tileAmount)); } }