ParticleVelocityColourUpdater.cpp

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#include "Headers/ParticleVelocityColourUpdater.h"
 
namespace Divide {
 
void ParticleVelocityColourUpdater::update( [[maybe_unused]] const U64 deltaTimeUS, ParticleData& p) {
    const U32 endID = p.aliveCount();
    const F32 diffr = _maxVel.x - _minVel.x;
    const F32 diffg = _maxVel.y - _minVel.y;
    const F32 diffb = _maxVel.z - _minVel.z;
 
    for (U32 i = 0; i < endID; ++i) {
        p._colour[i].set(
            (p._velocity[i].x - _minVel.x) /
                diffr,  // lerp(p._startColour[i].r, p._endColour[i].r, scaler),
            (p._velocity[i].y - _minVel.y) /
                diffg,  // lerp(p._startColour[i].g, p._endColour[i].g, scaleg),
            (p._velocity[i].z - _minVel.z) /
                diffb,  // lerp(p._startColour[i].b, p._endColour[i].b,
                         // scaleb),
            Lerp(p._startColour[i].a, p._endColour[i].a, p._misc[i].y) * 255.0f);
    }
}
 
} //namespace Divide