| 50 | int ParticleEmitter::mNextParticleId = 0; |
| 51 | |
| 52 | Particle ParticleEmitter::createParticle(const Vector3& emitterVelocity, float timeOffset) const |
| 53 | { |
| 54 | float density = getAtmosphericDensity(); |
| 55 | float alpha = glm::mix(mParams.zeroAtmosphericDensityAlpha, mParams.earthSeaLevelAtmosphericDensityAlpha, density / 1.225); |
| 56 | |
| 57 | Vector3 velocityRelEmitter = calculateParticleVelocityRelEmitter(); |
| 58 | Particle particle; |
| 59 | particle.guid = mNextParticleId++; |
| 60 | particle.position = mParams.positionable->getPosition() + velocityRelEmitter * double(timeOffset); |
| 61 | particle.velocity = emitterVelocity + velocityRelEmitter; |
| 62 | particle.age = 0; |
| 63 | particle.radius = mParams.radius; |
| 64 | particle.initialAlpha = alpha * mEmissionAlphaMultiplier; |
| 65 | particle.alpha = particle.initialAlpha; |
| 66 | particle.temperatureDegreesCelcius = mParams.temperatureDegreesCelcius; |
| 67 | return particle; |
| 68 | } |
| 69 | |
| 70 | Vector3 ParticleEmitter::calculateParticleVelocityRelEmitter() const |
| 71 | { |
nothing calls this directly
no test coverage detected