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Fixed random seed when run in benchmark mode, use default random engine instead of fixed mersene twister

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Refs #269
This commit is contained in:
saschawillems 2018-01-18 21:31:19 +01:00
parent 5790f30c17
commit 9e073bdd3b
11 changed files with 55 additions and 60 deletions
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9
examples/computeparticles/computeparticles.cpp
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@ -233,14 +233,13 @@ public:
// Setup and fill the compute shader storage buffers containing the particles
void prepareStorageBuffers()
{
std::mt19937 rGenerator;
std::uniform_real_distribution<float> rDistribution(-1.0f, 1.0f);
std::default_random_engine rndEngine(benchmark.active ? 0 : (unsigned)time(nullptr));
std::uniform_real_distribution<float> rndDist(-1.0f, 1.0f);
// Initial particle positions
std::vector<Particle> particleBuffer(PARTICLE_COUNT);
for (auto& particle : particleBuffer)
{
particle.pos = glm::vec2(rDistribution(rGenerator), rDistribution(rGenerator));
for (auto& particle : particleBuffer) {
particle.pos = glm::vec2(rndDist(rndEngine), rndDist(rndEngine));
particle.vel = glm::vec2(0.0f);
particle.gradientPos.x = particle.pos.x / 2.0f;
}