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Jarcode
2017-12-04 16:15:43 -08:00
parent 1d0734be67
commit 304cf222a3
2 changed files with 14 additions and 14 deletions
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22
shaders/radial/1.frag
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@@ -34,25 +34,25 @@ void main() {
dy = gl_FragCoord.y - (screen.y / 2);
float theta = atan(dy, dx); /* fragment angle with the center of the screen as the origin */
float d = sqrt((dx * dx) + (dy * dy)); /* distance */
if (d > C_RADIUS - (float(C_LINE) / 2F) && d < C_RADIUS + (float(C_LINE) / 2F)) {
if (d > C_RADIUS - (float(C_LINE) / 2.0F) && d < C_RADIUS + (float(C_LINE) / 2.0F)) {
fragment = OUTLINE;
return;
} else if (d > C_RADIUS) {
const float section = (TWOPI / NBARS); /* range (radians) for each bar */
const float center = ((TWOPI / NBARS) / 2F); /* center line angle */
float m = mod(theta, section); /* position in section (radians) */
float ym = d * sin(center - m); /* distance from center line (cartesian coords) */
if (abs(ym) < BAR_WIDTH / 2) { /* if within width, draw audio */
float idx = theta + ROTATE; /* position (radians) in texture */
float dir = mod(abs(idx), TWOPI); /* absolute position, [0, 2pi) */
const float section = (TWOPI / NBARS); /* range (radians) for each bar */
const float center = ((TWOPI / NBARS) / 2.0F); /* center line angle */
float m = mod(theta, section); /* position in section (radians) */
float ym = d * sin(center - m); /* distance from center line (cartesian coords) */
if (abs(ym) < BAR_WIDTH / 2) { /* if within width, draw audio */
float idx = theta + ROTATE; /* position (radians) in texture */
float dir = mod(abs(idx), TWOPI); /* absolute position, [0, 2pi) */
if (dir > PI)
idx = -sign(idx) * (TWOPI - dir); /* Re-correct position values to [-pi, pi) */
idx = -sign(idx) * (TWOPI - dir); /* Re-correct position values to [-pi, pi) */
if (INVERT > 0)
idx = -idx; /* Invert if needed */
idx = -idx; /* Invert if needed */
float pos = int(abs(idx) / section) / float(NBARS / 2);
float v = smooth_audio(idx > 0 ? audio_l : audio_r, audio_sz, pos, SMOOTH) * AMPLIFY * (1 + pos);
d -= C_RADIUS + (float(C_LINE) / 2F); /* offset to fragment distance from inner circle */
d -= C_RADIUS + (float(C_LINE) / 2.0F); /* offset to fragment distance from inner circle */
if (d <= v - BAR_OUTLINE_WIDTH) {
#if BAR_OUTLINE_WIDTH > 0
if (abs(ym) < (BAR_WIDTH / 2) - BAR_OUTLINE_WIDTH)