clara/bluenoise-raytracer
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more data generation

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This commit is contained in:
CDaut 2024-08-26 13:43:19 +02:00
parent 7a0f86c425
commit 7250fe1dd0
Signed by: clara
GPG key ID: 223391B52FAD4463
698 changed files with 248864 additions and 273 deletions
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34
raytracer/ray_tracing_gltf/hello_vulkan.cpp
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@ -349,27 +349,27 @@ void HelloVulkan::createPointsetImage(const VkCommandBuffer& cmdBuf)
//generate blue noise points
/*const int npoints = 262144;
utk::CustomHeckSampler sampler(0.606f, 8.f, 0.5);
auto pointset = utk::Pointset<float>{};
std::cout << std::endl << "generating " << npoints << " blue noise points…" << std::endl;
sampler.generateSamples(pointset, npoints);
// const int npoints = 16384;
// utk::CustomHeckSampler sampler(0.606f, 8.f, 0.3, true);
// auto pointset = utk::Pointset<float>{};
// std::cout << std::endl << "generating " << npoints << " blue noise points…" << std::endl;
// sampler.generateSamples(pointset, npoints);
//
// utk::write_text_pointset("pointset_16384_tc_0.3_0.00002f.txt", pointset);
utk::write_text_pointset("pointset_262144.txt", pointset);
*/
//load huge pointset
auto pointset = utk::read_text_pointset<long double>("pointset_262144.txt")[0];
//auto pointset = utk::read_text_pointset<long double>("pointset_16384_tc_0.3_0.00002f.txt")[0];
//iterate pointset and fill texture
for(int i = 0; i < pointset.Npts(); ++i)
{
auto point = std::make_pair(pointset[i][0] * (m_size.width - 1), pointset[i][1] * ((m_size.height) - 1));
float_t wholex, wholey, fractionalx, fractionaly;
fractionalx = std::modf(point.first, &wholex);
fractionaly = std::modf(point.second, &wholey);
points[wholex + wholey * m_size.width] = vec2{fractionalx, fractionaly};
}
// for(int i = 0; i < pointset.Npts(); ++i)
// {
// auto point = std::make_pair(pointset[i][0] * (m_size.width - 1), pointset[i][1] * ((m_size.height) - 1));
// float_t wholex, wholey, fractionalx, fractionaly;
// fractionalx = std::modf(point.first, &wholex);
// fractionaly = std::modf(point.second, &wholey);
//
// points[wholex + wholey * m_size.width] = vec2{fractionalx, fractionaly};
// }
m_pointsetBuffer = m_alloc.createBuffer(cmdBuf, sizeof(glm::vec2) * points.size(), points.data(),
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT | VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT);