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Details

Type: Bug
Resolution: Done
Priority: P2: Important
Fix Version/s: QDS 2.2 Beta2
Affects Version/s: QDS 2.2 Beta1
Component/s: 3D View
Labels:
None

Story Points:
1
Commits:
aef13a5dcdf557ea8afd95b4c20c593f4d56cb09 (qt-creator/qt-creator/5.0)
Sprint:
QDS 3D - 2021 Week 31/32

Description

3D Particle system running on QDS stops running after ~20 seconds. The reason for breakage seems to be overflowing the ParticleSystem3D.time parameter. It is supposed to be milliseconds, and when running in standalone application, it is, but for some reason this time is massively accelerated when running inside QDS, leading to integer overflow in ~20 seconds.

To repro, add the following code to View3D scene:

            ParticleSystem3D {
                id: psystem
                x: 200
            }
            ParticleEmitter3D {
                system: psystem
                emitRate: 10
                particleScale: 20
                particleRotationVariation: Qt.vector3d(0, 0, 180)
                particleRotationVelocityVariation: Qt.vector3d(0, 0, 40)
                particle: spriteParticle
            }
            SpriteParticle3D {
                id: spriteParticle
            }