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polarity-correct scope

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minjaesong
2023-11-22 00:29:44 +09:00
parent 3ff90655f6
commit 72dc444353
2 changed files with 11 additions and 4 deletions
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9
src/net/torvald/terrarum/audio/TerrarumAudioFilter.kt
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@@ -2,6 +2,7 @@ package net.torvald.terrarum.audio
import com.jme3.math.FastMath
import net.torvald.terrarum.audio.TerrarumAudioMixerTrack.Companion.BUFFER_SIZE
import net.torvald.terrarum.modulebasegame.ui.abs
import kotlin.math.tanh
abstract class TerrarumAudioFilter {
@@ -55,11 +56,11 @@ class Scope : TerrarumAudioFilter() {
// plot dots
for (i in 0 until BUFFER_SIZE/4) {
val x0 = inbuf1[0][i] * 0.7
val y0 = inbuf1[1][i] * 0.7
val y0 = inbuf1[0][i] * 0.7
val x0 = -inbuf1[1][i] * 0.7 // rotate the domain by -90 deg
val x = (x0*sqrt2p + y0*sqrt2p) * 1.414
val y = (x0*sqrt2p - y0*sqrt2p) * 1.414
val x = (+x0*sqrt2p -y0*sqrt2p) * 1.414
val y = (-x0*sqrt2p -y0*sqrt2p) * 1.414 // further rotate by -45 deg then flip along the y axis
backbufL[0][i] = x.toFloat()
backbufR[0][i] = y.toFloat()

6
src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
View File

@@ -569,6 +569,9 @@ class BasicDebugInfoWindow : UICanvas() {
App.fontSmallNumbers.draw(batch, "Bs:${BUFFER_SIZE/4}", x+3f, y+1f)
}
is Scope -> {
// batch.color = COL_FILTER_WELL_BACK
// Toolkit.fillArea(batch, 200, 200, 256, 256)
batch.color = scopePlotCol
val xxs = filter.backbufR
val yys = filter.backbufL
@@ -586,6 +589,9 @@ class BasicDebugInfoWindow : UICanvas() {
val py = ys[i] * halfStripW + halfStripW
Toolkit.fillArea(batch, x + px, y + py, 1f, 1f)
// Toolkit.fillArea(batch, 328 + xs[i] * 128, 328 + ys[i] * 128, 1f, 1f)
// scopedSamples++
}