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
Support the bindings to be more integrable with a system's coherent memory management.
Pleaes note that thorvg now only allow the desinated memory allocators here:
malloc -> tvg::malloc
calloc -> tvg::calloc
realloc -> tvg::realloc
free -> tvg::free
issue: https://github.com/thorvg/thorvg/issues/2652
Until now lottie loader supported only a single
dash-gap pair, and only the case where only the dash
was provided was handled correctly. When both values
were provided, the gap was incorrectly increased by
the dash value. If more values were supplied, only
the last pair was considered.
@Issue: https://github.com/thorvg/thorvg/issues/3191
frame tweening allows user to interpolate two frames
over a speicified duration. This Tweening functionality
can be particularly powerful when combined with state-based
(a.k.a. Marker) animation playback in Lottie.
For example, apps support state machine based animations,
where the transition sequences between states are not linear
and can occur in highly irregular directions.
Experimental APIs:
- Result LottieAnimation::tween(float from, float to, float progress)
- Tvg_Result tvg_lottie_animation_tween(Tvg_Animation* animation, float from, float to, float progress)
Reverted commit db800c8d45,
which introduced another regression that omitted support
for multiple image asset references.
Updated the data of active images in the pooler
within the override() function to resolve the issue.
Change in the algorithm for selecting characters included
in the range selector. This is the first step towards adding
support for maxAmount, smoothness, and easing.
@Issue: https://github.com/thorvg/thorvg/issues/2178
Since we've separated ClipPath and Masking,
Masking now has a distinct and independent purpose.
API Modification:
- enum class CompositeMethod -> enum class MaskMethod
- Result Paint::composite(std::unique_ptr<Paint> target, CompositeMethod method) -> Result Paint::mask(std::unique_ptr<Paint> target, MaskMethod method)
- CompositeMethod Paint::mask(const Paint** target) const -> MaskMethod Paint::mask(const Paint** target) const
issue: https://github.com/thorvg/thorvg/issues/1372
Improving text render compatibility by fixing wrong Text Range.
When lottie doesn't have `end` prop in the range, system must ignore condition regarding to `end`.
The original logic unintentionally swaps `start` and `end` prop, because `end` is the zero in this case. Then the text range animation behaves the opposite.
on each parse, if the `randomize` is enabled,
the start and end of the Text Range are redefined
with the same gap as the original range.
issue: https://github.com/thorvg/thorvg/issues/2178
Due to the lack of an analytical solution for Bezier
curves offsetting, a simple and computationally cheap
approximation has been implemented. The algorithm shifts
the segments connecting control points and determines
new points based on their intersections.
@issue: https://github.com/thorvg/thorvg/issues/2230
More precisely, culling the render objects by
determining if the group has no renderable objects.
Additionally, check opacity to quickly return
in the rendering process.
LottieRenderPooler is designed to manages rendering
instances(paints) efficiently through a simple pooling
mechanism to resuse among the animations
This replaces the previous individusal paints implemenations
among solidfill, precomp vierport and pictures,
also fix a potential paints corruption problems.
