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triangle_manager.hpp
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triangle_manager.hpp
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#ifndef TRIANGLE_MANAGER_HPP_INCLUDED
#define TRIANGLE_MANAGER_HPP_INCLUDED
#include <memory>
#include <toolkit/opencl.hpp>
#include "triangle.hpp"
struct physics;
///so. This is never going to be a full on 3d renderer
///highest tri count we might get is 100k tris
///each object represents something that is on the same time coordinate, and also may follow a geodesic
///need to subtriangulate and deduplicate individually
namespace triangle_rendering
{
std::vector<triangle> load_tris_from_model(const std::string& model_name);
struct object
{
vec4f pos;
vec3f velocity;
std::vector<triangle> tris;
float scale = 1;
vec4f last_pos;
vec3f last_velocity;
int gpu_offset = -1;
int physics_offset = -1;
void set_pos(vec4f in)
{
pos = in;
}
std::vector<triangle> get_tris_with_scale()
{
if(scale == 1)
return tris;
auto ret = tris;
for(triangle& t : ret)
{
vec3f v0 = t.get_vert(0);
vec3f v1 = t.get_vert(1);
vec3f v2 = t.get_vert(2);
v0 *= scale;
v1 *= scale;
v2 *= scale;
t.set_vert(0, v0);
t.set_vert(1, v1);
t.set_vert(2, v2);
}
return ret;
}
};
struct gpu_object
{
vec4f pos;
gpu_object(const object& o)
{
pos = o.pos;
}
};
struct manager
{
std::vector<std::shared_ptr<object>> cpu_objects;
int tri_count = 0;
int gpu_object_count = 0;
cl::buffer objects;
cl::buffer objects_velocity;
cl::buffer tris;
manager(cl::context& ctx) : objects(ctx), objects_velocity(ctx), tris(ctx)
{
}
std::shared_ptr<object> make_new();
///split into dir and name
std::shared_ptr<object> make_new(const std::string& model_name);
void build(cl::command_queue& cqueue);
void update_objects(cl::command_queue& cqueue);
void force_update_objects(cl::command_queue& cqueue);
};
}
#endif // TRIANGLE_MANAGER_HPP_INCLUDED