本文整理汇总了C++中Fplane::build_unit_normal方法的典型用法代码示例。如果您正苦于以下问题：C++ Fplane::build_unit_normal方法的具体用法？C++ Fplane::build_unit_normal怎么用？C++ Fplane::build_unit_normal使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Fplane的用法示例。
在下文中一共展示了Fplane::build_unit_normal方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
void CLightShadows::render ()
{
// Gain access to collision-DB
CDB::MODEL* DB = g_pGameLevel->ObjectSpace.GetStaticModel();
CDB::TRI* TRIS = DB->get_tris();
Fvector* VERTS = DB->get_verts();
int slot_line = S_rt_size/S_size;
// Projection and xform
float _43 = Device.mProject._43;
Device.mProject._43 -= 0.002f;
RCache.set_xform_world (Fidentity);
RCache.set_xform_project (Device.mProject);
Fvector View = Device.vCameraPosition;
// Render shadows
RCache.set_Shader (sh_World);
RCache.set_Geometry (geom_World);
int batch = 0;
u32 Offset = 0;
FVF::LIT* pv = (FVF::LIT*) RCache.Vertex.Lock (batch_size*3,geom_World->vb_stride,Offset);
for (u32 s_it=0; s_it<shadows.size(); s_it++)
{
Device.Statistic->RenderDUMP_Srender.Begin ();
shadow& S = shadows[s_it];
float Le = S.L->color.intensity()*S.E;
int s_x = S.slot%slot_line;
int s_y = S.slot/slot_line;
Fvector2 t_scale, t_offset;
t_scale.set (float(S_size)/float(S_rt_size),float(S_size)/float(S_rt_size));
t_scale.mul (.5f);
t_offset.set(float(s_x)/float(slot_line),float(s_y)/float(slot_line));
t_offset.x += .5f/S_rt_size;
t_offset.y += .5f/S_rt_size;
// Search the cache
cache_item* CI = 0; BOOL bValid = FALSE;
cache_item CI_what; CI_what.O = S.O; CI_what.L = S.L; CI_what.tris=0;
xr_vector<cache_item>::iterator CI_ptr = std::lower_bound(cache.begin(),cache.end(),CI_what,cache_search);
if (CI_ptr==cache.end())
{ // empty ?
CI_ptr = cache.insert (CI_ptr,CI_what);
CI = &*CI_ptr;
bValid = FALSE;
} else {
if (CI_ptr->O != CI_what.O || CI_ptr->L != CI_what.L)
{ // we found something different
CI_ptr = cache.insert (CI_ptr,CI_what);
CI = &*CI_ptr;
bValid = FALSE;
} else {
// Everything, OK. Check if info is still relevant...
CI = &*CI_ptr;
bValid = TRUE;
if (!CI->Op.similar(CI->O->renderable.xform.c)) bValid = FALSE;
else if (!CI->Lp.similar(CI->L->position)) bValid = FALSE;
}
}
CI->time = Device.dwTimeGlobal; // acess time
if (!bValid) {
// Frustum
CFrustum F;
F.CreateFromMatrix (S.M,FRUSTUM_P_ALL);
// Query
xrc.frustum_options (0);
xrc.frustum_query (DB,F);
if (0==xrc.r_count()) continue;
// Clip polys by frustum
tess.clear ();
for (CDB::RESULT* p = xrc.r_begin(); p!=xrc.r_end(); p++)
{
VERIFY((p->id>=0)&&(p->id<DB->get_tris_count()));
//
CDB::TRI& t = TRIS[p->id];
if (t.suppress_shadows) continue;
sPoly A,B;
A.push_back (VERTS[t.verts[0]]);
A.push_back (VERTS[t.verts[1]]);
A.push_back (VERTS[t.verts[2]]);
// Calc plane, throw away degenerate tris and invisible to light polygons
Fplane P; float mag = 0;
Fvector t1,t2,n;
t1.sub (A[0],A[1]);
t2.sub (A[0],A[2]);
n.crossproduct (t1,t2);
mag = n.square_magnitude();
if (mag<EPS_S) continue;
n.mul (1.f/_sqrt(mag));
P.build_unit_normal (A[0],n);
float DOT_Fade = P.classify(S.L->position);
if (DOT_Fade<0) continue;
// Clip polygon
sPoly* clip = F.ClipPoly (A,B);
if (0==clip) continue;
//.........这里部分代码省略.........