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fix off-by-one on morph animation frames

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This commit is contained in:
Nick Fisher
2022-06-21 13:05:36 +08:00
parent cc99482abb
commit 4664276fc4
1 changed files with 13 additions and 10 deletions
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23
ios/src/FilamentViewer.cpp
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@@ -541,21 +541,17 @@ namespace polyvox
void FilamentViewer::animateWeights(float *data, int numWeights, int numFrames, float frameLengthInMs)
{
// assert numWeights == asset.numWeights ?
Log("Making morph animation buffer with %d weights across %d frames and frame length %f ms ", numWeights, numFrames, frameLengthInMs);
morphAnimationBuffer = std::make_unique<MorphAnimationBuffer>(data, numWeights, numFrames, frameLengthInMs);
}
void FilamentViewer::updateMorphAnimation()
{
if(!morphAnimationBuffer) {
return;
}
if (morphAnimationBuffer->frameIndex >= morphAnimationBuffer->numFrames)
{
duration<double, std::milli> dur = high_resolution_clock::now() - morphAnimationBuffer->startTime;
Log("Morph animation completed in %f ms (%d frames at framerate %f), final frame was %d", dur.count(), morphAnimationBuffer->numFrames, 1000 / morphAnimationBuffer->frameLengthInMs, morphAnimationBuffer->frameIndex);
morphAnimationBuffer = nullptr;
} else if (morphAnimationBuffer->frameIndex == -1)
{
if (morphAnimationBuffer->frameIndex == -1) {
morphAnimationBuffer->frameIndex++;
morphAnimationBuffer->startTime = high_resolution_clock::now();
applyWeights(morphAnimationBuffer->frameData, morphAnimationBuffer->numWeights);
@@ -564,10 +560,17 @@ namespace polyvox
{
duration<double, std::milli> dur = high_resolution_clock::now() - morphAnimationBuffer->startTime;
int frameIndex = static_cast<int>(dur.count() / morphAnimationBuffer->frameLengthInMs);
if (frameIndex != morphAnimationBuffer->frameIndex)
if (frameIndex > morphAnimationBuffer->numFrames - 1)
{
duration<double, std::milli> dur = high_resolution_clock::now() - morphAnimationBuffer->startTime;
Log("Morph animation completed in %f ms (%d frames at framerate %f), final frame was %d", dur.count(), morphAnimationBuffer->numFrames, 1000 / morphAnimationBuffer->frameLengthInMs, morphAnimationBuffer->frameIndex);
morphAnimationBuffer = nullptr;
} else if (frameIndex != morphAnimationBuffer->frameIndex) {
Log("Rendering frame %d (of a total %d)", frameIndex, morphAnimationBuffer->numFrames);
morphAnimationBuffer->frameIndex = frameIndex;
applyWeights(morphAnimationBuffer->frameData + (morphAnimationBuffer->frameIndex * morphAnimationBuffer->numWeights), morphAnimationBuffer->numWeights);
auto framePtrOffset = frameIndex * morphAnimationBuffer->numWeights;
applyWeights(morphAnimationBuffer->frameData + framePtrOffset, morphAnimationBuffer->numWeights);
}
}
}