diff options
Diffstat (limited to 'examples/particles_gpu')
| -rw-r--r-- | examples/particles_gpu/particles_gpu.cpp | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/examples/particles_gpu/particles_gpu.cpp b/examples/particles_gpu/particles_gpu.cpp index 2104a88..baae5f3 100644 --- a/examples/particles_gpu/particles_gpu.cpp +++ b/examples/particles_gpu/particles_gpu.cpp @@ -19,7 +19,49 @@ saw::error_or<void> lbm_main(int argc, char** argv){ using namespace lbm; using namespace acpp; - saw::data<sch::Array<sch::Particle<sch::Float32,2u>>> particles{256u}; + saw::data<sch::Array<sch::Particle<sch::Float32,2u>>> particles{1024u}; + + for(saw::data<sch::UInt64> i{0u}; i < saw::data<sch::UInt64>{32u}; ++i){ + for(saw::data<sch::UInt64> j{0u}; j < saw::data<sch::UInt64>{32u}; ++j){ + + auto& part = particles.at(i*32ul+j); + auto& body = part.template get<"rigid_body">(); + + auto& pos = body.template get<"position">(); + auto& old_pos = body.template get<"position_old">(); + auto& acceleration = body.template get<"acceleration">(); + auto& p_size = part.template get<"size">(); + p_size = {0.5f}; + + if(j.get() % 2u == 0) acceleration.at({{1u}}) = {-9.81}; + + pos.at({{0u}}) = {i.template cast_to<sch::Float32>()}; + pos.at({{1u}}) = {j.template cast_to<sch::Float32>()}; + + old_pos = pos; + } + } + + for(saw::data<sch::UInt64> dt{0u}; dt < saw::data<sch::UInt64>{1024ul*32ul}; ++dt){ + for(saw::data<sch::UInt64> i{0u}; i < particles.size(); ++i){ + auto& part_i = particles.at(i); + + verlet_step_lambda<sch::Float32,2u>(part_i,{1.0f}); + } + for(saw::data<sch::UInt64> i{0u}; i < particles.size(); ++i){ + auto& part_i = particles.at(i); + for(saw::data<sch::UInt64> j{i+1ul}; j < particles.size(); ++j){ + auto& part_j = particles.at(j); + + auto res = broadphase_collision_distance<sch::Float32,2u>(part_i, part_j); + if(res.first){ + std::cout<<"Collision"<<std::endl; + } + } + } + + saw::codec<sch::Array<sch::Particle<sch::Float32,2u>>, saw::encode::Json> j_codec; + } return saw::make_void(); } |