1286 lines
46 KiB
C++
1286 lines
46 KiB
C++
// sphere、cylinear、cone、tours code from McNopper,website: https://github.com/McNopper/GLUS
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// GL to VK: swap Y/Z of position/normal/tangent/index
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#include<hgl/graph/InlineGeometry.h>
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#include<hgl/graph/VertexAttribBuffer.h>
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#include<hgl/graph/vulkan/VKDevice.h>
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#include<hgl/graph/vulkan/VKShaderModule.h>
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#include<hgl/graph/SceneDB.h>
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namespace hgl
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{
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namespace graph
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{
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namespace
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{
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template<typename VERTEX_VB_FORMAT>
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struct GeometryCreater
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{
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SceneDB *db;
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vulkan::Material *mtl;
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const vulkan::VertexShaderModule *vsm=nullptr;
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vulkan::Renderable *render_obj=nullptr;
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int vertex_binding =-1;
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int color_binding =-1;
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int normal_binding =-1;
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int tangent_binding =-1;
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int texcoord_binding=-1;
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VERTEX_VB_FORMAT *vertex =nullptr;
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VB4f *color =nullptr;
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VB3f *normal =nullptr;
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VB3f *tangent =nullptr;
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VB2f *tex_coord =nullptr;
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vulkan::IndexBuffer *ibo=nullptr;
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public:
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GeometryCreater(SceneDB *sdb,vulkan::Material *m):db(sdb),mtl(m)
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{
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vsm=mtl->GetVertexShaderModule();
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vertex_binding =vsm->GetStageInputBinding("Vertex");
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color_binding =vsm->GetStageInputBinding("Color");
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normal_binding =vsm->GetStageInputBinding("Normal");
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tangent_binding =vsm->GetStageInputBinding("Tangent");
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texcoord_binding=vsm->GetStageInputBinding("TexCoord");
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}
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~GeometryCreater()
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{
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if(render_obj)
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delete render_obj;
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}
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bool Init(uint vertices_number)
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{
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if(vertex_binding==-1)return(false);
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if(!vertices_number)return(false);
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render_obj=mtl->CreateRenderable(vertices_number);
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vertex =new VERTEX_VB_FORMAT(vertices_number);
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if(color_binding !=-1)color =new VB4f(vertices_number);
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if(normal_binding !=-1)normal =new VB3f(vertices_number);
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if(tangent_binding !=-1)tangent =new VB3f(vertices_number);
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if(texcoord_binding !=-1)tex_coord =new VB2f(vertices_number);
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return(true);
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}
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void WriteVertex (const float *v){if(vertex )vertex ->BufferData(v);}
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void WriteColor (const float *v){if(color )color ->BufferData(v);}
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void WriteNormal (const float *v){if(normal )normal ->BufferData(v);}
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void WriteTangent (const float *v){if(tangent )tangent ->BufferData(v);}
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void WriteTexCoord (const float *v){if(tex_coord )tex_coord ->BufferData(v);}
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VERTEX_VB_FORMAT * GetVertex (){if(!vertex)return nullptr;vertex->Begin();return vertex; }
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VB4f * GetColor (){if(!color)return nullptr;color->Begin();return color; }
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VB3f * GetNormal (){if(!normal)return nullptr;normal->Begin();return normal; }
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VB3f * GetTangent (){if(!tangent)return nullptr;tangent->Begin();return tangent; }
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VB2f * GetTexCoord (){if(!tex_coord)return nullptr;tex_coord->Begin();return tex_coord; }
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float *GetVertexPointer (){return vertex ?(float *)vertex ->Begin():nullptr;}
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float *GetColorPointer (){return color ?(float *)color ->Begin():nullptr;}
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float *GetNormalPointer (){return normal ?(float *)normal ->Begin():nullptr;}
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float *GetTangentPointer (){return tangent ?(float *)tangent ->Begin():nullptr;}
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float *GetTexCoordPointer (){return tex_coord ?(float *)tex_coord ->Begin():nullptr;}
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uint16 *CreateIBO16(uint count,const uint16 *data=nullptr)
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{
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ibo=db->CreateIBO16(count,data);
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return (uint16 *)ibo->Map();
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}
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uint32 *CreateIBO32(uint count,const uint32 *data=nullptr)
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{
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ibo=db->CreateIBO32(count,data);
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return (uint32 *)ibo->Map();
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}
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private:
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void Finish(int binding,VertexAttribBufferCreater *vb)
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{
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render_obj->Set(binding,db->CreateVAB(vb));
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delete vb;
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}
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public:
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vulkan::Renderable *Finish()
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{
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if(vertex)
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{
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render_obj->SetBoundingBox(vertex->GetAABB());
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Finish(vertex_binding,vertex);
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}
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if(color )Finish(color_binding, color);
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if(normal )Finish(normal_binding, normal);
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if(tangent )Finish(tangent_binding, tangent);
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if(tex_coord)Finish(texcoord_binding, tex_coord);
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if(ibo)
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{
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ibo->Unmap();
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render_obj->Set(ibo);
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}
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vulkan::Renderable *result=render_obj;
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db->Add(render_obj);
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render_obj=nullptr;
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return result;
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}
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};//struct GeometryCreater
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using GeometryCreater3D=GeometryCreater<VB3f>;
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using GeometryCreater2D=GeometryCreater<VB2f>;
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}//namespace
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vulkan::Renderable *CreateRenderableRectangle(SceneDB *db,vulkan::Material *mtl,const RectangleCreateInfo *rci)
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{
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GeometryCreater2D gc(db,mtl);
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if(!gc.Init(4))
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return(nullptr);
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VB2f *vertex=gc.GetVertex();
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vertex->WriteRectFan(rci->scope);
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return gc.Finish();
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}
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vulkan::Renderable *CreateRenderableGBufferComposition(SceneDB *db,vulkan::Material *mtl)
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{
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RectangleCreateInfo rci;
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rci.scope.Set(-1,-1,2,2);
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return CreateRenderableRectangle(db,mtl,&rci);
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}
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vulkan::Renderable *CreateRenderableRoundRectangle(SceneDB *db,vulkan::Material *mtl,const RoundRectangleCreateInfo *rci)
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{
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GeometryCreater2D gc(db,mtl);
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if(rci->radius==0||rci->round_per<=1) //这是要画矩形
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{
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if(!gc.Init(4))
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return(nullptr);
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VB2f *vertex=gc.GetVertex();
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vertex->WriteRectFan(rci->scope);
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}
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else
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{
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float radius=rci->radius;
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if(radius>rci->scope.GetWidth()/2.0f)radius=rci->scope.GetWidth()/2.0f;
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if(radius>rci->scope.GetHeight()/2.0f)radius=rci->scope.GetHeight()/2.0f;
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if(!gc.Init(rci->round_per*4))
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return(nullptr);
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VB2f *vertex=gc.GetVertex();
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vec2<float> *coord=new vec2<float>[rci->round_per];
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float l=rci->scope.GetLeft(),
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r=rci->scope.GetRight(),
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t=rci->scope.GetTop(),
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b=rci->scope.GetBottom();
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for(uint i=0;i<rci->round_per;i++)
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{
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float ang=float(i)/float(rci->round_per-1)*90.0f;
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float x=sin(hgl_ang2rad(ang))*radius;
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float y=cos(hgl_ang2rad(ang))*radius;
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coord[i].x=x;
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coord[i].y=y;
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//右上角
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vertex->Write(r-radius+x,
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t+radius-y);
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}
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//右下角
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for(uint i=0;i<rci->round_per;i++)
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{
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vertex->Write(r-radius+coord[rci->round_per-1-i].x,
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b-radius+coord[rci->round_per-1-i].y);
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}
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//左下角
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for(uint i=0;i<rci->round_per;i++)
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{
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vertex->Write(l+radius-coord[i].x,
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b-radius+coord[i].y);
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}
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//左上角
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for(uint i=0;i<rci->round_per;i++)
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{
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vertex->Write(l+radius-coord[rci->round_per-1-i].x,
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t+radius-coord[rci->round_per-1-i].y);
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}
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delete[] coord;
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}
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return gc.Finish();
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}
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vulkan::Renderable *CreateRenderableCircle(SceneDB *db,vulkan::Material *mtl,const CircleCreateInfo *cci)
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{
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GeometryCreater2D gc(db,mtl);
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if(!gc.Init(cci->field_count))
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return(nullptr);
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VB2f *vertex=gc.GetVertex();
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for(uint i=0;i<cci->field_count;i++)
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{
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float ang=float(i)/float(cci->field_count)*360.0f;
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float x=cci->center.x+sin(hgl_ang2rad(ang))*cci->radius.x;
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float y=cci->center.y+cos(hgl_ang2rad(ang))*cci->radius.y;
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vertex->Write(x,y);
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}
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return gc.Finish();
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}
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vulkan::Renderable *CreateRenderablePlaneGrid(SceneDB *db,vulkan::Material *mtl,const PlaneGridCreateInfo *pgci)
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{
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GeometryCreater3D gc(db,mtl);
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if(!gc.Init(((pgci->step.u+1)+(pgci->step.v+1))*2))
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return(nullptr);
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VB3f *vertex=gc.GetVertex();
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for(uint row=0;row<=pgci->step.u;row++)
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{
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float pos=float(row)/float(pgci->step.u);
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vertex->WriteLine( to(pgci->coord[0],pgci->coord[1],pos),
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to(pgci->coord[3],pgci->coord[2],pos));
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}
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for(uint col=0;col<=pgci->step.v;col++)
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{
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float pos=float(col)/float(pgci->step.v);
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vertex->WriteLine(to(pgci->coord[1],pgci->coord[2],pos),
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to(pgci->coord[0],pgci->coord[3],pos));
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}
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VB4f *color=gc.GetColor();
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if(color)
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{
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for(uint row=0;row<=pgci->step.u;row++)
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{
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if((row%pgci->side_step.u)==0)
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color->Fill(pgci->side_color,2);
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else
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color->Fill(pgci->color,2);
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}
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for(uint col=0;col<=pgci->step.v;col++)
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{
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if((col%pgci->side_step.v)==0)
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color->Fill(pgci->side_color,2);
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else
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color->Fill(pgci->color,2);
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}
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}
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return gc.Finish();
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}
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vulkan::Renderable *CreateRenderablePlane(SceneDB *db,vulkan::Material *mtl,const PlaneCreateInfo *pci)
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{
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const float xy_vertices [] = { -0.5f,-0.5f,0.0f, +0.5f,-0.5f,0.0f, +0.5f,+0.5f,0.0f, -0.5f,+0.5f,0.0f };
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float xy_tex_coord[] = { 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f };
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const Vector3f xy_normal(0.0f,0.0f,1.0f);
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const Vector3f xy_tangent(1.0f,0.0f,0.0f);
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GeometryCreater3D gc(db,mtl);
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if(!gc.Init(4))
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return(nullptr);
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gc.WriteVertex(xy_vertices);
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{
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VB3f *normal=gc.GetNormal();
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if(normal)normal->Fill(xy_normal,4);
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}
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{
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VB3f *tangent=gc.GetTangent();
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tangent->Fill(xy_tangent,4);
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}
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{
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VB2f *tex_coord=gc.GetTexCoord();
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if(tex_coord)
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{
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xy_tex_coord[2]=xy_tex_coord[4]=pci->tile.x;
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xy_tex_coord[5]=xy_tex_coord[7]=pci->tile.y;
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tex_coord->BufferData(xy_tex_coord);
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}
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}
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return gc.Finish();
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}
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vulkan::Renderable *CreateRenderableCube(SceneDB *db,vulkan::Material *mtl,const CubeCreateInfo *cci)
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{ // Points of a cube.
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/* 4 5 */ const float points[]={ -0.5f, -0.5f, -0.5f, -0.5f, -0.5f, +0.5f, +0.5f, -0.5f, +0.5f, +0.5f, -0.5f, -0.5f, -0.5f, +0.5f, -0.5f, -0.5f, +0.5f, +0.5f,
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/* *------------* */ +0.5f, +0.5f, +0.5f, +0.5f, +0.5f, -0.5f, -0.5f, -0.5f, -0.5f, -0.5f, +0.5f, -0.5f, +0.5f, +0.5f, -0.5f, +0.5f, -0.5f, -0.5f,
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/* /| /| */ -0.5f, -0.5f, +0.5f, -0.5f, +0.5f, +0.5f, +0.5f, +0.5f, +0.5f, +0.5f, -0.5f, +0.5f, -0.5f, -0.5f, -0.5f, -0.5f, -0.5f, +0.5f,
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/* 0/ | 1/ | */ -0.5f, +0.5f, +0.5f, -0.5f, +0.5f, -0.5f, +0.5f, -0.5f, -0.5f, +0.5f, -0.5f, +0.5f, +0.5f, +0.5f, +0.5f, +0.5f, +0.5f, -0.5f };
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/* *--+---------* | */ // Normals of a cube.
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/* | | | | */ const float normals[]={ +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f,
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/* | 7| | 6| */ +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f,
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/* | *---------+--* */ +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f,
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/* | / | / */ -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f };
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/* |/ 2|/ */ // The associated indices.
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/* 3*------------* */ const uint16 indices[]={ 0, 2, 1, 0, 3, 2, 4, 5, 6, 4, 6, 7, 8, 9, 10, 8, 10, 11, 12, 15, 14, 12, 14, 13, 16, 17, 18, 16, 18, 19, 20, 23, 22, 20, 22, 21 };
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const float tangents[] = { +1.0f, 0.0f, 0.0f, +1.0f, 0.0f, 0.0f, +1.0f, 0.0f, 0.0f, +1.0f, 0.0f, 0.0f, +1.0f, 0.0f, 0.0f, +1.0f, 0.0f, 0.0f,
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+1.0f, 0.0f, 0.0f, +1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f,
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+1.0f, 0.0f, 0.0f, +1.0f, 0.0f, 0.0f, +1.0f, 0.0f, 0.0f, +1.0f, 0.0f, 0.0f, 0.0f, 0.0f,+1.0f, 0.0f, 0.0f,+1.0f,
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0.0f, 0.0f,+1.0f, 0.0f, 0.0f,+1.0f, 0.0f, 0.0f,-1.0f, 0.0f, 0.0f,-1.0f, 0.0f, 0.0f,-1.0f, 0.0f, 0.0f,-1.0f };
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const float tex_coords[] ={ 0.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f,
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1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0.0f,
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0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f };
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GeometryCreater3D gc(db,mtl);
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if(!gc.Init(24))
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return(nullptr);
|
||
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||
if(cci->center ==Vector3f(0,0,0)
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&&cci->size ==Vector3f(1,1,1))
|
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{
|
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gc.WriteVertex(points);
|
||
}
|
||
else
|
||
{
|
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const float *sp=points;
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float *vp=gc.GetVertexPointer();
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||
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||
for(uint i=0;i<24;i++)
|
||
{
|
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*vp=cci->center.x+(*sp)*cci->size.x; ++vp;++sp;
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*vp=cci->center.y+(*sp)*cci->size.y; ++vp;++sp;
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*vp=cci->center.z+(*sp)*cci->size.z; ++vp;++sp;
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}
|
||
}
|
||
|
||
gc.WriteNormal(normals);
|
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gc.WriteTangent(tangents);
|
||
|
||
float *tcp=gc.GetTexCoordPointer();
|
||
|
||
if(tcp)
|
||
{
|
||
if(cci->tile.x==1&&cci->tile.y==1)
|
||
{
|
||
gc.WriteTexCoord(tex_coords);
|
||
}
|
||
else
|
||
{
|
||
const float *tc=tex_coords;
|
||
|
||
for(uint i=0;i<24;i++)
|
||
{
|
||
*tcp=(*tc)*cci->tile.x;++tc;++tcp;
|
||
*tcp=(*tc)*cci->tile.y;++tc;++tcp;
|
||
}
|
||
}
|
||
}
|
||
|
||
gc.CreateIBO16(6*2*3,indices);
|
||
return gc.Finish();
|
||
}
|
||
|
||
template<typename T> void CreateSphereIndices(T *tp,uint numberParallels,const uint numberSlices)
|
||
{
|
||
for (uint i = 0; i < numberParallels; i++)
|
||
{
|
||
for (uint j = 0; j < numberSlices; j++)
|
||
{
|
||
*tp= i * (numberSlices + 1) + j; ++tp;
|
||
*tp=(i + 1) * (numberSlices + 1) + (j + 1); ++tp;
|
||
*tp=(i + 1) * (numberSlices + 1) + j; ++tp;
|
||
|
||
*tp= i * (numberSlices + 1) + j; ++tp;
|
||
*tp= i * (numberSlices + 1) + (j + 1); ++tp;
|
||
*tp=(i + 1) * (numberSlices + 1) + (j + 1); ++tp;
|
||
}
|
||
}
|
||
}
|
||
|
||
namespace
|
||
{
|
||
constexpr uint GLUS_VERTICES_FACTOR =4;
|
||
constexpr uint GLUS_VERTICES_DIVISOR=4;
|
||
constexpr uint GLUS_MAX_VERTICES =1048576;
|
||
constexpr uint GLUS_MAX_INDICES =GLUS_MAX_VERTICES*GLUS_VERTICES_FACTOR;
|
||
|
||
void glusQuaternionRotateRyf(float quaternion[4], const float angle)
|
||
{
|
||
float halfAngleRadian = hgl_ang2rad(angle) * 0.5f;
|
||
|
||
quaternion[0] = 0.0f;
|
||
quaternion[1] = sinf(halfAngleRadian);
|
||
quaternion[2] = 0.0f;
|
||
quaternion[3] = cosf(halfAngleRadian);
|
||
}
|
||
|
||
void glusQuaternionRotateRzf(float quaternion[4], const float angle)
|
||
{
|
||
float halfAngleRadian = hgl_ang2rad(angle) * 0.5f;
|
||
|
||
quaternion[0] = 0.0f;
|
||
quaternion[1] = 0.0f;
|
||
quaternion[2] = sinf(halfAngleRadian);
|
||
quaternion[3] = cosf(halfAngleRadian);
|
||
}
|
||
|
||
void glusQuaternionGetMatrix4x4f(float matrix[16], const float quaternion[4])
|
||
{
|
||
float x = quaternion[0];
|
||
float y = quaternion[1];
|
||
float z = quaternion[2];
|
||
float w = quaternion[3];
|
||
|
||
matrix[0] = 1.0f - 2.0f * y * y - 2.0f * z * z;
|
||
matrix[1] = 2.0f * x * y + 2.0f * w * z;
|
||
matrix[2] = 2.0f * x * z - 2.0f * w * y;
|
||
matrix[3] = 0.0f;
|
||
|
||
matrix[4] = 2.0f * x * y - 2.0f * w * z;
|
||
matrix[5] = 1.0f - 2.0f * x * x - 2.0f * z * z;
|
||
matrix[6] = 2.0f * y * z + 2.0f * w * x;
|
||
matrix[7] = 0.0f;
|
||
|
||
matrix[8] = 2.0f * x * z + 2.0f * w * y;
|
||
matrix[9] = 2.0f * y * z - 2.0f * w * x;
|
||
matrix[10] = 1.0f - 2.0f * x * x - 2.0f * y * y;
|
||
matrix[11] = 0.0f;
|
||
|
||
matrix[12] = 0.0f;
|
||
matrix[13] = 0.0f;
|
||
matrix[14] = 0.0f;
|
||
matrix[15] = 1.0f;
|
||
}
|
||
|
||
void glusMatrix4x4MultiplyVector3f(float result[3], const float matrix[16], const float vector[3])
|
||
{
|
||
int i;
|
||
|
||
float temp[3];
|
||
|
||
for (i = 0; i < 3; i++)
|
||
{
|
||
temp[i] = matrix[i] * vector[0] + matrix[4 + i] * vector[1] + matrix[8 + i] * vector[2];
|
||
}
|
||
|
||
for (i = 0; i < 3; i++)
|
||
{
|
||
result[i] = temp[i];
|
||
}
|
||
}
|
||
}//namespace
|
||
|
||
/**
|
||
* 创建一个球体的可渲染数据,球心为0,0,0，半径为1
|
||
* @param numberSlices 切片数
|
||
* @return 可渲染数据
|
||
*/
|
||
vulkan::Renderable *CreateRenderableSphere(SceneDB *db,vulkan::Material *mtl,const uint numberSlices)
|
||
{
|
||
GeometryCreater3D gc(db,mtl);
|
||
|
||
uint numberParallels = (numberSlices+1) / 2;
|
||
uint numberVertices = (numberParallels + 1) * (numberSlices + 1);
|
||
uint numberIndices = numberParallels * numberSlices * 6;
|
||
|
||
const double angleStep = double(2.0f * HGL_PI) / ((double) numberSlices);
|
||
|
||
// used later to help us calculating tangents vectors
|
||
float helpVector[3] = { 1.0f, 0.0f, 0.0f };
|
||
float helpQuaternion[4];
|
||
float helpMatrix[16];
|
||
float tex_x;
|
||
|
||
if(!gc.Init(numberVertices))
|
||
return(nullptr);
|
||
|
||
float *vp=gc.GetVertexPointer();
|
||
float *np=gc.GetNormalPointer();
|
||
float *tp=gc.GetTangentPointer();
|
||
float *tc=gc.GetTexCoordPointer();
|
||
|
||
for (uint i = 0; i < numberParallels + 1; i++)
|
||
{
|
||
for (uint j = 0; j < numberSlices + 1; j++)
|
||
{
|
||
float x = sin(angleStep * (double) i) * sin(angleStep * (double) j);
|
||
float y = sin(angleStep * (double) i) * cos(angleStep * (double) j);
|
||
float z = cos(angleStep * (double) i);
|
||
|
||
*vp=x;++vp;
|
||
*vp=y;++vp;
|
||
*vp=z;++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np=x;++np;
|
||
*np=y;++np;
|
||
*np=z;++np;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
tex_x=(float) j / (float) numberSlices;
|
||
|
||
*tc=tex_x;++tc;
|
||
*tc=1.0f - (float) i / (float) numberParallels;++tc;
|
||
|
||
if(tp)
|
||
{
|
||
// use quaternion to get the tangent vector
|
||
glusQuaternionRotateRyf(helpQuaternion, 360.0f * tex_x);
|
||
glusQuaternionGetMatrix4x4f(helpMatrix, helpQuaternion);
|
||
|
||
glusMatrix4x4MultiplyVector3f(tp, helpMatrix, helpVector);
|
||
tp+=3;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if(numberVertices<=0xffff)
|
||
CreateSphereIndices<uint16>(gc.CreateIBO16(numberIndices),numberParallels,numberSlices);
|
||
else
|
||
CreateSphereIndices<uint32>(gc.CreateIBO32(numberIndices),numberParallels,numberSlices);
|
||
|
||
return gc.Finish();
|
||
}
|
||
|
||
vulkan::Renderable *CreateRenderableDome(SceneDB *db,vulkan::Material *mtl,const DomeCreateInfo *dci)
|
||
{
|
||
GeometryCreater3D gc(db,mtl);
|
||
|
||
uint i, j;
|
||
|
||
uint numberParallels = dci->numberSlices / 4;
|
||
uint numberVertices = (numberParallels + 1) * (dci->numberSlices + 1);
|
||
uint numberIndices = numberParallels * dci->numberSlices * 6;
|
||
|
||
float angleStep = (2.0f * HGL_PI) / ((float) dci->numberSlices);
|
||
|
||
// used later to help us calculating tangents vectors
|
||
float helpVector[3] = { 1.0f, 0.0f, 0.0f };
|
||
float helpQuaternion[4];
|
||
float helpMatrix[16];
|
||
float tex_x;
|
||
|
||
if (dci->numberSlices < 3 || numberVertices > GLUS_MAX_VERTICES || numberIndices > GLUS_MAX_INDICES)
|
||
return nullptr;
|
||
|
||
if(!gc.Init(numberVertices))
|
||
return(nullptr);
|
||
|
||
float *vp=gc.GetVertexPointer();
|
||
float *np=gc.GetNormalPointer();
|
||
float *tp=gc.GetTangentPointer();
|
||
float *tc=gc.GetTexCoordPointer();
|
||
|
||
for (i = 0; i < numberParallels + 1; i++)
|
||
{
|
||
for (j = 0; j < dci->numberSlices + 1; j++)
|
||
{
|
||
uint vertexIndex = (i * (dci->numberSlices + 1) + j) * 4;
|
||
uint normalIndex = (i * (dci->numberSlices + 1) + j) * 3;
|
||
uint tangentIndex = (i * (dci->numberSlices + 1) + j) * 3;
|
||
uint texCoordsIndex = (i * (dci->numberSlices + 1) + j) * 2;
|
||
|
||
float x= dci->radius * sinf(angleStep * (float) i) * sinf(angleStep * (float) j);
|
||
float y= dci->radius * sinf(angleStep * (float) i) * cosf(angleStep * (float) j);
|
||
float z= dci->radius * cosf(angleStep * (float) i);
|
||
|
||
*vp=x;++vp;
|
||
*vp=y;++vp;
|
||
*vp=z;++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np = x / dci->radius;++np;
|
||
*np = y / dci->radius;++np;
|
||
*np = z / dci->radius;++np;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
*tc = tex_x=(float) j / (float) dci->numberSlices;++tc;
|
||
*tc = 1.0f - (float) i / (float) numberParallels;++tc;
|
||
|
||
if(tp)
|
||
{
|
||
// use quaternion to get the tangent vector
|
||
glusQuaternionRotateRyf(helpQuaternion, 360.0f * tex_x);
|
||
glusQuaternionGetMatrix4x4f(helpMatrix, helpQuaternion);
|
||
|
||
glusMatrix4x4MultiplyVector3f(tp, helpMatrix, helpVector);
|
||
tp+=3;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if(numberVertices<=0xffff)
|
||
CreateSphereIndices<uint16>(gc.CreateIBO16(numberIndices),numberParallels,dci->numberSlices);
|
||
else
|
||
CreateSphereIndices<uint32>(gc.CreateIBO32(numberIndices),numberParallels,dci->numberSlices);
|
||
|
||
return gc.Finish();
|
||
}
|
||
|
||
namespace
|
||
{
|
||
template<typename T>
|
||
void CreateTorusIndices(T *tp,uint numberSlices,uint numberStacks)
|
||
{
|
||
// loop counters
|
||
uint sideCount, faceCount;
|
||
|
||
// used to generate the indices
|
||
uint v0, v1, v2, v3;
|
||
|
||
for (sideCount = 0; sideCount < numberSlices; ++sideCount)
|
||
{
|
||
for (faceCount = 0; faceCount < numberStacks; ++faceCount)
|
||
{
|
||
// get the number of the vertices for a face of the torus. They must be < numVertices
|
||
v0 = ((sideCount * (numberStacks + 1)) + faceCount);
|
||
v1 = (((sideCount + 1) * (numberStacks + 1)) + faceCount);
|
||
v2 = (((sideCount + 1) * (numberStacks + 1)) + (faceCount + 1));
|
||
v3 = ((sideCount * (numberStacks + 1)) + (faceCount + 1));
|
||
|
||
// first triangle of the face, counter clock wise winding
|
||
*tp = v0; ++tp;
|
||
*tp = v2; ++tp;
|
||
*tp = v1; ++tp;
|
||
|
||
// second triangle of the face, counter clock wise winding
|
||
*tp = v0; ++tp;
|
||
*tp = v3; ++tp;
|
||
*tp = v2; ++tp;
|
||
}
|
||
}
|
||
}
|
||
}//namespace
|
||
|
||
vulkan::Renderable *CreateRenderableTorus(SceneDB *db,vulkan::Material *mtl,const TorusCreateInfo *tci)
|
||
{
|
||
GeometryCreater3D gc(db,mtl);
|
||
|
||
// s, t = parametric values of the equations, in the range [0,1]
|
||
float s = 0;
|
||
float t = 0;
|
||
|
||
// sIncr, tIncr are increment values aplied to s and t on each loop iteration to generate the torus
|
||
float sIncr;
|
||
float tIncr;
|
||
|
||
// to store precomputed sin and cos values
|
||
float cos2PIs, sin2PIs, cos2PIt, sin2PIt;
|
||
|
||
uint sideCount,faceCount;
|
||
|
||
uint numberVertices;
|
||
uint numberIndices;
|
||
|
||
// used later to help us calculating tangents vectors
|
||
float helpVector[3] = { 0.0f, 1.0f, 0.0f };
|
||
float helpQuaternion[4];
|
||
float helpMatrix[16];
|
||
|
||
float torusRadius = (tci->outerRadius - tci->innerRadius) / 2.0f;
|
||
float centerRadius = tci->outerRadius - torusRadius;
|
||
|
||
numberVertices = (tci->numberStacks + 1) * (tci->numberSlices + 1);
|
||
numberIndices = tci->numberStacks * tci->numberSlices * 2 * 3; // 2 triangles per face * 3 indices per triangle
|
||
|
||
if (tci->numberSlices < 3 || tci->numberStacks < 3 || numberVertices > GLUS_MAX_VERTICES || numberIndices > GLUS_MAX_INDICES)
|
||
return(nullptr);
|
||
|
||
sIncr = 1.0f / (float) tci->numberSlices;
|
||
tIncr = 1.0f / (float) tci->numberStacks;
|
||
|
||
if(!gc.Init(numberVertices))
|
||
return(nullptr);
|
||
|
||
float *vp=gc.GetVertexPointer();
|
||
float *np=gc.GetNormalPointer();
|
||
float *tp=gc.GetTangentPointer();
|
||
float *tc=gc.GetTexCoordPointer();
|
||
|
||
// generate vertices and its attributes
|
||
for (sideCount = 0; sideCount <= tci->numberSlices; ++sideCount, s += sIncr)
|
||
{
|
||
// precompute some values
|
||
cos2PIs = (float) cosf(2.0f * HGL_PI * s);
|
||
sin2PIs = (float) sinf(2.0f * HGL_PI * s);
|
||
|
||
t = 0.0f;
|
||
for (faceCount = 0; faceCount <= tci->numberStacks; ++faceCount, t += tIncr)
|
||
{
|
||
// precompute some values
|
||
cos2PIt = (float) cosf(2.0f * HGL_PI * t);
|
||
sin2PIt = (float) sinf(2.0f * HGL_PI * t);
|
||
|
||
// generate vertex and stores it in the right position
|
||
*vp = (centerRadius + torusRadius * cos2PIt) * cos2PIs; ++vp;
|
||
*vp = torusRadius * sin2PIt; ++vp;
|
||
*vp = (centerRadius + torusRadius * cos2PIt) * sin2PIs; ++vp;
|
||
|
||
if(np)
|
||
{
|
||
// generate normal and stores it in the right position
|
||
// NOTE: cos (2PIx) = cos (x) and sin (2PIx) = sin (x) so, we can use this formula
|
||
// normal = {cos(2PIs)cos(2PIt) , sin(2PIs)cos(2PIt) ,sin(2PIt)}
|
||
*np = cos2PIs * cos2PIt; ++np;
|
||
*np = sin2PIt; ++np;
|
||
*np = sin2PIs * cos2PIt; ++np;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
// generate texture coordinates and stores it in the right position
|
||
*tc = s; ++tc;
|
||
*tc = t; ++tc;
|
||
}
|
||
|
||
if(tp)
|
||
{
|
||
// use quaternion to get the tangent vector
|
||
glusQuaternionRotateRzf(helpQuaternion, 360.0f * s);
|
||
glusQuaternionGetMatrix4x4f(helpMatrix, helpQuaternion);
|
||
|
||
glusMatrix4x4MultiplyVector3f(tp, helpMatrix, helpVector);
|
||
tp+=3;
|
||
}
|
||
}
|
||
}
|
||
|
||
if(numberVertices<=0xffff)
|
||
CreateTorusIndices<uint16>(gc.CreateIBO16(numberIndices),tci->numberSlices,tci->numberStacks);
|
||
else
|
||
CreateTorusIndices<uint32>(gc.CreateIBO32(numberIndices),tci->numberSlices,tci->numberStacks);
|
||
|
||
return gc.Finish();
|
||
}
|
||
|
||
namespace
|
||
{
|
||
template<typename T>
|
||
void CreateCylinderIndices(T *tp,const uint numberSlices)
|
||
{
|
||
uint i;
|
||
|
||
T centerIndex = 0;
|
||
T indexCounter = 1;
|
||
|
||
for (i = 0; i < numberSlices; i++)
|
||
{
|
||
*tp = centerIndex; ++tp;
|
||
*tp = indexCounter; ++tp;
|
||
*tp = indexCounter + 1; ++tp;
|
||
|
||
indexCounter++;
|
||
}
|
||
indexCounter++;
|
||
|
||
// Top
|
||
centerIndex = indexCounter;
|
||
indexCounter++;
|
||
|
||
for (i = 0; i < numberSlices; i++)
|
||
{
|
||
*tp = centerIndex; ++tp;
|
||
*tp = indexCounter + 1; ++tp;
|
||
*tp = indexCounter; ++tp;
|
||
|
||
indexCounter++;
|
||
}
|
||
indexCounter++;
|
||
|
||
// Sides
|
||
for (i = 0; i < numberSlices; i++)
|
||
{
|
||
*tp = indexCounter; ++tp;
|
||
*tp = indexCounter + 1; ++tp;
|
||
*tp = indexCounter + 2; ++tp;
|
||
|
||
*tp = indexCounter + 2; ++tp;
|
||
*tp = indexCounter + 1; ++tp;
|
||
*tp = indexCounter + 3; ++tp;
|
||
|
||
indexCounter += 2;
|
||
}
|
||
}
|
||
}//namespace
|
||
|
||
vulkan::Renderable *CreateRenderableCylinder(SceneDB *db,vulkan::Material *mtl,const CylinderCreateInfo *cci)
|
||
{
|
||
uint numberIndices = cci->numberSlices * 3 * 2 + cci->numberSlices * 6;
|
||
|
||
if(numberIndices<=0)
|
||
return(nullptr);
|
||
|
||
GeometryCreater3D gc(db,mtl);
|
||
|
||
uint numberVertices = (cci->numberSlices + 2) * 2 + (cci->numberSlices + 1) * 2;
|
||
|
||
if(!gc.Init(numberVertices))
|
||
return(nullptr);
|
||
|
||
float angleStep = (2.0f * HGL_PI) / ((float) cci->numberSlices);
|
||
|
||
if (cci->numberSlices < 3 || numberVertices > GLUS_MAX_VERTICES || numberIndices > GLUS_MAX_INDICES)
|
||
return nullptr;
|
||
|
||
float *vp=gc.GetVertexPointer();
|
||
float *np=gc.GetNormalPointer();
|
||
float *tp=gc.GetTangentPointer();
|
||
float *tc=gc.GetTexCoordPointer();
|
||
|
||
*vp = 0.0f; ++vp;
|
||
*vp = 0.0f; ++vp;
|
||
*vp = -cci->halfExtend; ++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np = 0.0f; ++np;
|
||
*np = 0.0f; ++np;
|
||
*np =-1.0f; ++np;
|
||
}
|
||
|
||
if(tp)
|
||
{
|
||
*tp = 0.0f; ++tp;
|
||
*tp = 1.0f; ++tp;
|
||
*tp = 0.0f; ++tp;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
*tc = 0.0f; ++tc;
|
||
*tc = 0.0f; ++tc;
|
||
}
|
||
|
||
for(uint i = 0; i < cci->numberSlices + 1; i++)
|
||
{
|
||
float currentAngle = angleStep * (float)i;
|
||
|
||
*vp = cosf(currentAngle) * cci->radius;++vp;
|
||
*vp = -sinf(currentAngle) * cci->radius;++vp;
|
||
*vp = -cci->halfExtend; ++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np = 0.0f; ++np;
|
||
*np = 0.0f; ++np;
|
||
*np =-1.0f; ++np;
|
||
}
|
||
|
||
if(tp)
|
||
{
|
||
*tp = sinf(currentAngle); ++tp;
|
||
*tp = cosf(currentAngle); ++tp;
|
||
*tp = 0.0f; ++tp;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
*tc = 0.0f; ++tc;
|
||
*tc = 0.0f; ++tc;
|
||
}
|
||
}
|
||
|
||
*vp = 0.0f; ++vp;
|
||
*vp = 0.0f; ++vp;
|
||
*vp = cci->halfExtend; ++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np = 0.0f; ++np;
|
||
*np = 0.0f; ++np;
|
||
*np = 1.0f; ++np;
|
||
}
|
||
|
||
if(tp)
|
||
{
|
||
*tp = 0.0f; ++tp;
|
||
*tp = -1.0f; ++tp;
|
||
*tp = 0.0f; ++tp;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
*tc = 1.0f; ++tc;
|
||
*tc = 1.0f; ++tc;
|
||
}
|
||
|
||
for(uint i = 0; i < cci->numberSlices + 1; i++)
|
||
{
|
||
float currentAngle = angleStep * (float)i;
|
||
|
||
*vp = cosf(currentAngle) * cci->radius;++vp;
|
||
*vp = -sinf(currentAngle) * cci->radius;++vp;
|
||
*vp = cci->halfExtend; ++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np = 0.0f; ++np;
|
||
*np = 0.0f; ++np;
|
||
*np = 1.0f; ++np;
|
||
}
|
||
|
||
if(tp)
|
||
{
|
||
*tp = -sinf(currentAngle); ++tp;
|
||
*tp = -cosf(currentAngle); ++tp;
|
||
*tp = 0.0f; ++tp;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
*tc = 1.0f; ++tc;
|
||
*tc = 1.0f; ++tc;
|
||
}
|
||
}
|
||
|
||
for(uint i = 0; i < cci->numberSlices + 1; i++)
|
||
{
|
||
float currentAngle = angleStep * (float)i;
|
||
|
||
float sign = -1.0f;
|
||
|
||
for (uint j = 0; j < 2; j++)
|
||
{
|
||
*vp = cosf(currentAngle) * cci->radius; ++vp;
|
||
*vp = -sinf(currentAngle) * cci->radius; ++vp;
|
||
*vp = cci->halfExtend * sign; ++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np = cosf(currentAngle); ++np;
|
||
*np = -sinf(currentAngle); ++np;
|
||
*np = 0.0f; ++np;
|
||
}
|
||
|
||
if(tp)
|
||
{
|
||
*tp = -sinf(currentAngle); ++tp;
|
||
*tp = -cosf(currentAngle); ++tp;
|
||
*tp = 0.0f; ++tp;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
*tc = (float)i / (float)cci->numberSlices; ++tc;
|
||
*tc = (sign + 1.0f) / 2.0f; ++tc;
|
||
}
|
||
|
||
sign = 1.0f;
|
||
}
|
||
}
|
||
|
||
if(numberVertices<=0xffff)
|
||
CreateCylinderIndices<uint16>(gc.CreateIBO16(numberIndices),cci->numberSlices);
|
||
else
|
||
CreateCylinderIndices<uint32>(gc.CreateIBO32(numberIndices),cci->numberSlices);
|
||
|
||
return gc.Finish();
|
||
}
|
||
|
||
namespace
|
||
{
|
||
template<typename T>
|
||
void CreateConeIndices(T *tp,const uint numberSlices,const uint numberStacks)
|
||
{
|
||
// Bottom
|
||
uint centerIndex = 0;
|
||
uint indexCounter = 1;
|
||
uint i,j;
|
||
|
||
for (i = 0; i < numberSlices; i++)
|
||
{
|
||
*tp = centerIndex; ++tp;
|
||
*tp = indexCounter; ++tp;
|
||
*tp = indexCounter + 1; ++tp;
|
||
|
||
indexCounter++;
|
||
}
|
||
indexCounter++;
|
||
|
||
// Sides
|
||
for (j = 0; j < numberStacks; j++)
|
||
{
|
||
for (i = 0; i < numberSlices; i++)
|
||
{
|
||
*tp = indexCounter; ++tp;
|
||
*tp = indexCounter + numberSlices + 1; ++tp;
|
||
*tp = indexCounter + 1; ++tp;
|
||
|
||
*tp = indexCounter + 1; ++tp;
|
||
*tp = indexCounter + numberSlices + 1; ++tp;
|
||
*tp = indexCounter + numberSlices + 2; ++tp;
|
||
|
||
indexCounter++;
|
||
}
|
||
indexCounter++;
|
||
}
|
||
}
|
||
}//namespace
|
||
|
||
vulkan::Renderable *CreateRenderableCone(SceneDB *db,vulkan::Material *mtl,const ConeCreateInfo *cci)
|
||
{
|
||
GeometryCreater3D gc(db,mtl);
|
||
|
||
uint i, j;
|
||
|
||
uint numberVertices = (cci->numberSlices + 2) + (cci->numberSlices + 1) * (cci->numberStacks + 1);
|
||
|
||
if(!gc.Init(numberVertices))
|
||
return(nullptr);
|
||
|
||
uint numberIndices = cci->numberSlices * 3 + cci->numberSlices * 6 * cci->numberStacks;
|
||
|
||
float angleStep = (2.0f * HGL_PI) / ((float) cci->numberSlices);
|
||
|
||
float h = 2.0f * cci->halfExtend;
|
||
float r = cci->radius;
|
||
float l = sqrtf(h*h + r*r);
|
||
|
||
if (cci->numberSlices < 3 || cci->numberStacks < 1 || numberVertices > GLUS_MAX_VERTICES || numberIndices > GLUS_MAX_INDICES)
|
||
return nullptr;
|
||
|
||
float *vp=gc.GetVertexPointer();
|
||
float *np=gc.GetNormalPointer();
|
||
float *tp=gc.GetTangentPointer();
|
||
float *tc=gc.GetTexCoordPointer();
|
||
|
||
*vp = 0.0f; ++vp;
|
||
*vp = 0.0f; ++vp;
|
||
*vp = -cci->halfExtend; ++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np = 0.0f;++np;
|
||
*np = 0.0f;++np;
|
||
*np =-1.0f;++np;
|
||
}
|
||
|
||
if(tp)
|
||
{
|
||
*tp = 0.0f; ++tp;
|
||
*tp = 1.0f; ++tp;
|
||
*tp = 0.0f; ++tp;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
*tc = 0.0f; ++tc;
|
||
*tc = 0.0f; ++tc;
|
||
}
|
||
|
||
for (i = 0; i < cci->numberSlices + 1; i++)
|
||
{
|
||
float currentAngle = angleStep * (float)i;
|
||
|
||
*vp = cosf(currentAngle) * cci->radius;++vp;
|
||
*vp = -sinf(currentAngle) * cci->radius;++vp;
|
||
*vp = -cci->halfExtend; ++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np = 0.0f;++np;
|
||
*np = 0.0f;++np;
|
||
*np =-1.0f;++np;
|
||
}
|
||
|
||
if(tp)
|
||
{
|
||
*tp = sinf(currentAngle); ++tp;
|
||
*tp = cosf(currentAngle); ++tp;
|
||
*tp = 0.0f; ++tp;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
*tc = 0.0f; ++tc;
|
||
*tc = 0.0f; ++tc;
|
||
}
|
||
}
|
||
|
||
for (j = 0; j < cci->numberStacks + 1; j++)
|
||
{
|
||
float level = (float)j / (float)cci->numberStacks;
|
||
|
||
for (i = 0; i < cci->numberSlices + 1; i++)
|
||
{
|
||
float currentAngle = angleStep * (float)i;
|
||
|
||
*vp = cosf(currentAngle) * cci->radius * (1.0f - level); ++vp;
|
||
*vp = -sinf(currentAngle) * cci->radius * (1.0f - level); ++vp;
|
||
*vp = -cci->halfExtend + 2.0f * cci->halfExtend * level; ++vp;
|
||
|
||
if(np)
|
||
{
|
||
*np = h / l * cosf(currentAngle); ++np;
|
||
*np = h / l * -sinf(currentAngle); ++np;
|
||
*np = r / l; ++np;
|
||
}
|
||
|
||
if(tp)
|
||
{
|
||
*tp = -sinf(currentAngle); ++tp;
|
||
*tp = -cosf(currentAngle); ++tp;
|
||
*tp = 0.0f; ++tp;
|
||
}
|
||
|
||
if(tc)
|
||
{
|
||
*tc = (float)i / (float)cci->numberSlices; ++tc;
|
||
*tc = level; ++tc;
|
||
}
|
||
}
|
||
}
|
||
|
||
if(numberVertices<=0xffff)
|
||
CreateConeIndices<uint16>(gc.CreateIBO16(numberIndices),cci->numberSlices,cci->numberStacks);
|
||
else
|
||
CreateConeIndices<uint32>(gc.CreateIBO32(numberIndices),cci->numberSlices,cci->numberStacks);
|
||
|
||
return gc.Finish();
|
||
}
|
||
|
||
vulkan::Renderable *CreateRenderableAxis(SceneDB *db,vulkan::Material *mtl,const AxisCreateInfo *aci)
|
||
{
|
||
GeometryCreater3D gc(db,mtl);
|
||
|
||
if(!gc.Init(6))
|
||
return(nullptr);
|
||
|
||
VB3f *vertex=gc.GetVertex();
|
||
VB4f *color=gc.GetColor();
|
||
|
||
if(!vertex||!color)
|
||
return(nullptr);
|
||
|
||
vertex->Write(aci->root);color->Write(aci->color[0]);
|
||
vertex->Write(aci->root.x+aci->size[0],aci->root.y,aci->root.z);color->Write(aci->color[0]);
|
||
|
||
vertex->Write(aci->root);color->Write(aci->color[1]);
|
||
vertex->Write(aci->root.x,aci->root.y+aci->size[1],aci->root.z);color->Write(aci->color[1]);
|
||
|
||
vertex->Write(aci->root);color->Write(aci->color[2]);
|
||
vertex->Write(aci->root.x,aci->root.y,aci->root.z+aci->size[2]);color->Write(aci->color[2]);
|
||
|
||
return gc.Finish();
|
||
}
|
||
|
||
vulkan::Renderable *CreateRenderableBoundingBox(SceneDB *db,vulkan::Material *mtl,const CubeCreateInfo *cci)
|
||
{
|
||
// Points of a cube.
|
||
/* 4 5 */ const float points[]={ -0.5,-0.5, 0.5, 0.5,-0.5,0.5, 0.5,-0.5,-0.5, -0.5,-0.5,-0.5,
|
||
/* *------------* */ -0.5, 0.5, 0.5, 0.5, 0.5,0.5, 0.5, 0.5,-0.5, -0.5, 0.5,-0.5};
|
||
/* /| /| */
|
||
/* 0/ | 1/ | */
|
||
/* *--+---------* | */
|
||
/* | | | | */
|
||
/* | 7| | 6| */
|
||
/* | *---------+--* */
|
||
/* | / | / */
|
||
/* |/ 2|/ */
|
||
/* 3*------------* */
|
||
|
||
const uint16 indices[]=
|
||
{
|
||
0,1, 1,2, 2,3, 3,0,
|
||
4,5, 5,6, 6,7, 7,4,
|
||
0,4, 1,5, 2,6, 3,7
|
||
};
|
||
|
||
GeometryCreater3D gc(db,mtl);
|
||
|
||
if(!gc.Init(8))
|
||
return(nullptr);
|
||
|
||
VB3f *vertex=gc.GetVertex();
|
||
|
||
if(!vertex)return(nullptr);
|
||
|
||
if(cci->center ==Vector3f(0,0,0)
|
||
&&cci->size ==Vector3f(1,1,1))
|
||
{
|
||
gc.WriteVertex(points);
|
||
}
|
||
else
|
||
{
|
||
const float *sp=points;
|
||
float *vp=(float *)(vertex->Get());
|
||
|
||
for(uint i=0;i<8;i++)
|
||
{
|
||
*vp=cci->center.x+(*sp)*cci->size.x; ++vp;++sp;
|
||
*vp=cci->center.y+(*sp)*cci->size.y; ++vp;++sp;
|
||
*vp=cci->center.z+(*sp)*cci->size.z; ++vp;++sp;
|
||
}
|
||
}
|
||
|
||
if(cci->has_color)
|
||
{
|
||
float *color_pointer=gc.GetColorPointer();
|
||
|
||
if(color_pointer)
|
||
{
|
||
for(uint i=0;i<8;i++)
|
||
{
|
||
memcpy(color_pointer,&(cci->color),4*sizeof(float));
|
||
color_pointer+=4;
|
||
}
|
||
}
|
||
}
|
||
|
||
gc.CreateIBO16(24,indices);
|
||
|
||
return gc.Finish();
|
||
}
|
||
}//namespace graph
|
||
}//namespace hgl
|