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fixed palette FX to more closely match original 1D version #4263

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merged 2 commits into from
Nov 27, 2024
Merged

fixed palette FX to more closely match original 1D version #4263

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536444f
fixed palette FX to more closely match original 1D version
DedeHai Nov 9, 2024
32dc54c
reverted rotation scale, offset only on static rotation, inverted shi…
DedeHai Nov 22, 2024
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10 changes: 5 additions & 5 deletions wled00/FX.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1966,7 +1966,7 @@ uint16_t mode_palette() {
const bool inputAnimateRotation = SEGMENT.check2;
const bool inputAssumeSquare = SEGMENT.check3;

const angleType theta = (!inputAnimateRotation) ? (inputRotation * maxAngle / staticRotationScale) : (((strip.now * ((inputRotation >> 4) +1)) & 0xFFFF) * animatedRotationScale);
const angleType theta = (!inputAnimateRotation) ? ((inputRotation + 128) * maxAngle / staticRotationScale) : (((strip.now * ((inputRotation >> 4) +1)) & 0xFFFF) * animatedRotationScale);
const mathType sinTheta = sinFunction(theta);
const mathType cosTheta = cosFunction(theta);

Expand All @@ -1985,7 +1985,7 @@ uint16_t mode_palette() {
// So the rectangle needs to have exactly the right size. That size depends on the rotation.
// This scale computation here only considers one dimension. You can think of it like the rectangle is always scaled so that
// the left and right most points always match the left and right side of the display.
const mathType scale = std::abs(sinTheta) + (std::abs(cosTheta) * maxYOut / maxXOut);
const mathType scale = std::abs(sinTheta) + (std::abs(cosTheta) * maxYOut / maxXOut);
// 2D simulation:
// If we are dealing with a 1D setup, we assume that each segment represents one line on a 2-dimensional display.
// The function is called once per segments, so we need to handle one line at a time.
Expand Down Expand Up @@ -2016,8 +2016,8 @@ uint16_t mode_palette() {
colorIndex = ((inputSize - 112) * colorIndex) / 16;
}
// Finally, shift the palette a bit.
const int paletteOffset = (!inputAnimateShift) ? (inputShift-128) : (((strip.now * ((inputShift >> 3) +1)) & 0xFFFF) >> 8);
colorIndex += paletteOffset;
const int paletteOffset = (!inputAnimateShift) ? (inputShift) : (((strip.now * ((inputShift >> 3) +1)) & 0xFFFF) >> 8);
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@TripleWhy TripleWhy Nov 13, 2024 •
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removed shift offset: offset is now zero at slider 0, to hit 128 on touch input devices is really hard

As mentioned, the offset was introduced by @blazoncek. I believe he didn't provide an opinion on removing it again in the previous discussion?

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@TripleWhy FYI I stepped down as a maintainer & developer of WLED and my decisions (past and present) may be overruled.

The original reasoning I had was that for existing/old presets (which lack new effect sliders/options) the default value for sliders/options should not interfere/clash with effect display (i.e. if c1 is unset in preset it's value should be 128 and not 0 which would be similar as if sx is missing).

Looking at the bigger picture (and certain PRs in the queue) quite a few effects are ripe for consolidation and pruning. This will inevitably break compatibility so no matter how you look at it some users will be upset.
My 2c.

colorIndex -= paletteOffset;
const uint32_t color = SEGMENT.color_wheel((uint8_t)colorIndex);
if (isMatrix) {
SEGMENT.setPixelColorXY(x, y, color);
Expand All @@ -2028,7 +2028,7 @@ uint16_t mode_palette() {
}
return FRAMETIME;
}
static const char _data_FX_MODE_PALETTE[] PROGMEM = "Palette@Shift,Size,Rotation,,,Animate Shift,Animate Rotation,Anamorphic;;!;12;c1=128,c2=128,c3=128,o1=1,o2=1,o3=0";
static const char _data_FX_MODE_PALETTE[] PROGMEM = "Palette@Shift,Size,Rotation,,,Animate Shift,Animate Rotation,Anamorphic;;!;12;ix=112,c1=0,o1=1,o2=0,o3=1";


// WLED limitation: Analog Clock overlay will NOT work when Fire2012 is active
Expand Down