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Initialize particle trail history frame numbers 

Fixes #88712

All particle trail sections were activated at once on the first cycle, instead
of being spread out over the trail's lifetime.
This commit is contained in:
Per Melin 2024-03-01 13:17:25 +01:00
parent 7d2ca2d8ac
commit 9b2d77a238
1 changed files with 5 additions and 0 deletions
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5
servers/rendering/renderer_rd/storage_rd/particles_storage.cpp
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@ -1452,6 +1452,11 @@ void ParticlesStorage::update_particles() {
if (uint32_t(history_size) != particles->frame_history.size()) {
particles->frame_history.resize(history_size);
memset(particles->frame_history.ptr(), 0, sizeof(ParticlesFrameParams) * history_size);
// Set the frame number so that we are able to distinguish an uninitialized
// frame from the true frame number zero. See issue #88712 for details.
for (int i = 0; i < history_size; i++) {
particles->frame_history[i].frame = UINT32_MAX;
}
}
if (uint32_t(trail_steps) != particles->trail_params.size() || particles->frame_params_buffer.is_null()) {