virtual float next1D(SampleBlock block) override final
{
if (_blockOffset[block] > blockMaximum(block))
FAIL("_blockOffset[%s] (%d) > %d", block, _blockOffset[block], blockMaximum(block));
int dimension = _pathOffset + block + _blockOffset[block];
_blockOffset[block]++;
if (dimension >= 1024)
return _supplementalSampler.next1D();
return BitManip::normalizedUint(sobol::sample(permutedIndex(), dimension, _scramble));
}
virtual Vec2f next2D() override final
{
float a = _sampler.next1D();
float b = _sampler.next1D();
return Vec2f(a, b);
}
virtual float next1D() override final
{
return _sampler.next1D();
}
virtual int nextDiscrete(int numChoices) override final
{
return int(_sampler.next1D()*numChoices);
}
virtual bool nextBoolean(float pTrue) override final
{
return _sampler.next1D() < pTrue;
}
virtual int nextDiscrete(SampleBlock /*block*/, int numChoices) override final
{
return int(_supplementalSampler.next1D()*numChoices);
}
virtual bool nextBoolean(SampleBlock /*block*/, float pTrue) override final
{
return _supplementalSampler.next1D() < pTrue;
}