effect(name) / effect(index)
effects finds the effect by its name in the Effect Controls panel.
The name can be the default name or a user-defined name.
If multiple effects have the same name,
the effect closest to the top of the Effect Controls panel is used.
example:
- effect("Fast Blur")("Blurriness")
issue: https://github.com/thorvg/thorvg/issues/3115
Duplicated text document properties (fill color, stroke color, and stroke width) to the text range.
If these properties are not defined in the range selector, ThorVG incorrectly overrides them with default values.
The correct behavior is to preserve the original values. The added flags address this issue.
Co-Authored-By: Hermet Park<hermet@lottiefiles.com>
ThorVG cap/join enums and lottie specs were not aligned.
Problem was observed for StrokeCap::Square and StrokeJoin::Bevel.
Note: this change breaks backward comatibility.
usage) temporalWiggle(freq, amp, octaves=1, amp_mult=.5, t=time)
Samples the property at a wiggled time. The freq value is the frequency
in wiggles per second, amp is the amplitude in units of the property
to which it is applied, octaves is the number of octaves of noise
to add together, amp_mult is the amount that amp is multiplied by
for each octave, and t is the base start time. For this function
to be meaningful, the property it samples must be animated,
because the function alters only the time of sampling, not the value.
Note: need to verify this with a practical samples.
issue: https://github.com/thorvg/thorvg/issues/1640
This function sets the value of a specified expression variable within a particular layer.
It is useful for dynamically changing the properties of a layer at runtime.
Experimental API
- Result LottieAnimation::assign(const char* layer, uint32_t ix, const char* variable, float value)
- Tvg_Result tvg_lottie_animation_assign(Tvg_Animation* animation, const char* layer, uint32_t ix, const char* var, float val)
- modify the concept of AABB to apply only to transformed shapes.
- transform points before computing the bounding box min/max
to obtain a more compact shape region.
- trimmming memory by removing the cached matrix, about 36kb
of memory has been reduced per paint instance.
When the datas are copied with deep copy, memory issue caused (SEGV on unknown address) due to these reasons:
1. `mimeType` is nullptr when it's not embedded(base64) data
2. datas(b64Data, mimeType) should not be clear, it's used for next slot copy in same pair.
If the svg contained an unsupported element with <stop> elements,
they were incorrectly assigned to the last loaded gradient. Now fixed.
@Issue: https://github.com/thorvg/thorvg/issues/3321
In member function ‘constexpr LottieGenericProperty<LottieScalarFrame<float>, float>& LottieGenericProperty<LottieScalarFrame<float>, float>::ope> inlined from ‘LottieFloat& LottieStroke::dashValue()’ at ../src/loaders/lottie/tvgLottieModel.h:60:104,
inlined from ‘void LottieParser::parseStrokeDash(LottieStroke*)’ at ../src/loaders/lottie/tvgLottieParser.cpp:623:82:
../src/loaders/lottie/tvgLottieProperty.h:297:8: warning: ‘<anonymous>.LottieGenericProperty<LottieScalarFrame<float>, float>::value’ may be used> 297 | struct LottieGenericProperty : LottieProperty
| ^~~~~~~~~~~~~~~~~~~~~
../src/loaders/lottie/tvgLottieModel.h: In member function ‘void LottieParser::parseStrokeDash(LottieStroke*)’:
../src/loaders/lottie/tvgLottieModel.h:60:104: note: ‘<anonymous>’ declared here
60 | for (uint8_t i = 0; i < dashattr->size; ++i) newValues[i] = LottieFloat(dashattr->values[i]);
|
implemented an aggressive culling strategy to eliminate
unnecessary renderings if the rendering visuals were hidden
by other overlaid opaque fills or strokes
this pretty improves the performance for those scenarios
when rendering sequences are fragmented by fills/strokes.
Performance has been improved ~7% with those cases
Until now the fill's trimming was not supported,
which allowed masks to function correctly. Introducing
trimming for the entire shape caused the mask to be trimmed
as well, leading to incorrect results.
Co-Authored-By: Hermet Park <hermet@lottiefiles.com>
A JavaScript code line may return undefined, but this should not be treated as an error.
For example, consider the following two lines of code:
- `var $bm_rt = 30` (Statement) → result: `undefined`
- `$bm_rt = 30` (Expression) → result: `30`
Both lines execute the same operation, but the JavaScript interpreter (REPL JS) evaluates them differently.
Therefore, an evaluation result of undefined should not be blocked, as it does not indicate a failed code execution.
