/* center line thickness (pixels) */
#define C_LINE 1

/* width (in pixels) of each bar */
#define BAR_WIDTH 4
/* width (in pixels) of each bar gap */
#define BAR_GAP 2
/* outline color */
#define BAR_OUTLINE vec4(0.15, 0.15, 0.15, 1)
/* outline width (in pixels, set to 0 to disable outline drawing) */
#define BAR_OUTLINE_WIDTH 0
/* Amplify magnitude of the results each bar displays */
#define AMPLIFY 300
/* Bar color */
#define COLOR (vec4(0.2, 0.4, 0.7, 1) * ((d / 60) + 1))
/* Direction that the bars are facing, 0 for inward, 1 for outward */
#define DIRECTION 0
/* Whether to switch left/right audio buffers */
#define INVERT 0
/* Smoothing factor, in normalized width */
#define SMOOTH 0.025