/inc/cryengine/CryCommon/AABBSV.h

https://github.com/samneirinck/awesomium-ce3 · C Header · 331 lines · 220 code · 46 blank · 65 comment · 55 complexity · c66d84eecbcc294406badf50e233c4b6 MD5 · raw file 

    

  1. //////////////////////////////////////////////////////////////////////
    2. 

  2. //
    3. 

  3. //	Crytek CryENGINE Source code
    4. 

  4. //	
    5. 

  5. //	File:AABBSV.h
    6. 

  6. //	Description: shadow volume AABB functionality for overlap testings
    7. 

  7. //
    8. 

  8. //	History:
    9. 

  9. //	-Feb 15,2004:Created by Michael Glueck, code provided by Ivo Herzeg
    10. 

  10. //
    11. 

  11. //////////////////////////////////////////////////////////////////////
    12. 

  12. 

  13. #ifndef AABBSV_H
    14. 

  14. #define AABBSV_H
    15. 

  15. 

  16. #if _MSC_VER > 1000
    17. 

  17. # pragma once
    18. 

  18. #endif
    19. 

  19. 

  20. #include "Cry_Geo.h"
    21. 

  21. 

  22. struct Shadowvolume 
    23. 

  23. {
    24. 

  24. 	uint32 sideamount;
    25. 

  25. 	uint32 nplanes;
    26. 

  26. 

  27. 	Plane oplanes[10];
    28. 

  28. };
    29. 

  29. 

  30. namespace NAABB_SV
    31. 

  31. {
    32. 

  32. 	//***************************************************************************************
    33. 

  33. 	//***************************************************************************************
    34. 

  34. 	//***             Calculate a ShadowVolume using an AABB and a point-light            ***
    35. 

  35. 	//***************************************************************************************
    36. 

  36. 	//***  The planes of the AABB facing away from the point-light are the far-planes     ***
    37. 

  37. 	//***  of the ShadowVolume. There can be 3-6 far-planes.                              ***
    38. 

  38. 	//***************************************************************************************
    39. 

  39. 	void AABB_ReceiverShadowVolume(const Vec3& PointLight, const AABB& Occluder, Shadowvolume &sv);
    40. 

  40. 

  41. 	//***************************************************************************************
    42. 

  42. 	//***************************************************************************************
    43. 

  43. 	//***             Calculate a ShadowVolume using an AABB and a point-light            ***
    44. 

  44. 	//***************************************************************************************
    45. 

  45. 	//***  The planes of the AABB facing the point-light are the near-planes of the       ***
    46. 

  46. 	//***  the ShadowVolume. There can be 1-3 near-planes.                                ***
    47. 

  47. 	//***  The far-plane is defined by lightrange.                                        ***
    48. 

  48. 	//***************************************************************************************
    49. 

  49. 	void AABB_ShadowVolume(const Vec3& PointLight, const AABB& Occluder, Shadowvolume &sv, f32 lightrange);	
    50. 

  50. 

  51. 	//***************************************************************************************
    52. 

  52. 	//***   this is the "fast" version to check if an AABB is overlapping a shadowvolume  ***
    53. 

  53. 	//***************************************************************************************
    54. 

  54. 	bool Is_AABB_In_ShadowVolume( const Shadowvolume &sv,  const AABB& Receiver );
    55. 

  55. 	
    56. 

  56. 	//***************************************************************************************
    57. 

  57. 	//***   this is the "hierarchical" check                                              ***
    58. 

  58. 	//***************************************************************************************
    59. 

  59. 	char Is_AABB_In_ShadowVolume_hierarchical( const Shadowvolume &sv,  const AABB& Receiver ); 
    60. 

  60. }
    61. 

  61. 

  62. 

  63. 

  64. 

  65. 

  66. inline void NAABB_SV::AABB_ReceiverShadowVolume(const Vec3& PointLight, const AABB& Occluder, Shadowvolume &sv)
    67. 

  67. {
    68. 

  68. 	sv.sideamount=0;
    69. 

  69. 	sv.nplanes=0;
    70. 

  70. 

  71. 	//------------------------------------------------------------------------------
    72. 

  72. 	//-- check if PointLight is in front of any occluder plane or inside occluder --
    73. 

  73. 	//------------------------------------------------------------------------------
    74. 

  74. 	uint32 front=0;
    75. 

  75. 	if (PointLight.x<Occluder.min.x)  front|=0x01;
    76. 

  76. 	if (PointLight.x>Occluder.max.x)  front|=0x02;
    77. 

  77. 	if (PointLight.y<Occluder.min.y)  front|=0x04;
    78. 

  78. 	if (PointLight.y>Occluder.max.y)  front|=0x08;
    79. 

  79. 	if (PointLight.z<Occluder.min.z)  front|=0x10;
    80. 

  80. 	if (PointLight.z>Occluder.max.z)  front|=0x20;
    81. 

  81. 

  82. 	sv.sideamount = BoxSides[(front<<3)+7];
    83. 

  83. 

  84. 	uint32 back = front^0x3f;	
    85. 

  85. 	if (back&0x01) { sv.oplanes[sv.nplanes].SetPlane(Vec3(-1,+0,+0),Occluder.min); sv.nplanes++; } 
    86. 

  86. 	if (back&0x02) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+1,+0,+0),Occluder.max); sv.nplanes++; }
    87. 

  87. 	if (back&0x04) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+0,-1,+0),Occluder.min); sv.nplanes++; } 
    88. 

  88. 	if (back&0x08) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+0,+1,+0),Occluder.max); sv.nplanes++; }
    89. 

  89. 	if (back&0x10) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+0,+0,-1),Occluder.min); sv.nplanes++; } 
    90. 

  90. 	if (back&0x20) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+0,+0,+1),Occluder.max); sv.nplanes++; }
    91. 

  91. 

  92. 	if (front==0) return;		//light is inside occluder
    93. 

  93. 

  94. 	//all 8 vertices of a AABB
    95. 

  95. 	Vec3 o[8] = 
    96. 

  96. 	{ 
    97. 

  97. 		Vec3(Occluder.min.x,Occluder.min.y,Occluder.min.z),
    98. 

  98. 			Vec3(Occluder.max.x,Occluder.min.y,Occluder.min.z),
    99. 

  99. 			Vec3(Occluder.min.x,Occluder.max.y,Occluder.min.z),
    100. 

  100. 			Vec3(Occluder.max.x,Occluder.max.y,Occluder.min.z),
    101. 

  101. 			Vec3(Occluder.min.x,Occluder.min.y,Occluder.max.z),
    102. 

  102. 			Vec3(Occluder.max.x,Occluder.min.y,Occluder.max.z),
    103. 

  103. 			Vec3(Occluder.min.x,Occluder.max.y,Occluder.max.z),
    104. 

  104. 			Vec3(Occluder.max.x,Occluder.max.y,Occluder.max.z)
    105. 

  105. 	};
    106. 

  106. 

  107. 	//---------------------------------------------------------------------
    108. 

  108. 	//---      find the silhouette-vertices of the occluder-AABB        ---
    109. 

  109. 	//---------------------------------------------------------------------
    110. 

  110. 	uint32 p0	=	BoxSides[(front<<3)+0];
    111. 

  111. 	uint32 p1	=	BoxSides[(front<<3)+1];
    112. 

  112. 	uint32 p2	=	BoxSides[(front<<3)+2];
    113. 

  113. 	uint32 p3	=	BoxSides[(front<<3)+3];
    114. 

  114. 	uint32 p4	=	BoxSides[(front<<3)+4];
    115. 

  115. 	uint32 p5	=	BoxSides[(front<<3)+5];
    116. 

  116. 

  117. 	float a;
    118. 

  118. 	if(sv.sideamount==4) 
    119. 

  119. 	{
    120. 

  120. 		//sv.oplanes[sv.nplanes+0]	=	Plane::CreatePlane( o[p0],o[p1], PointLight );
    121. 

  121. 		//sv.oplanes[sv.nplanes+1]	=	Plane::CreatePlane( o[p1],o[p2], PointLight );
    122. 

  122. 		//sv.oplanes[sv.nplanes+2]	=	Plane::CreatePlane( o[p2],o[p3], PointLight );
    123. 

  123. 		//sv.oplanes[sv.nplanes+3]	=	Plane::CreatePlane( o[p3],o[p0], PointLight );
    124. 

  124. 		sv.sideamount=0;
    125. 

  125. 		a=(o[p1]-o[p0])|(o[p0]-PointLight); 
    126. 

  126. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p0],o[p1], PointLight ); sv.sideamount++; }
    127. 

  127. 		a=(o[p2]-o[p1])|(o[p1]-PointLight); 
    128. 

  128. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p1],o[p2], PointLight ); sv.sideamount++; }
    129. 

  129. 		a=(o[p3]-o[p2])|(o[p2]-PointLight); 
    130. 

  130. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p2],o[p3], PointLight ); sv.sideamount++; }
    131. 

  131. 		a=(o[p0]-o[p3])|(o[p3]-PointLight); 
    132. 

  132. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p3],o[p0], PointLight ); sv.sideamount++; }
    133. 

  133. 	}
    134. 

  134. 

  135. 	if(sv.sideamount==6) 
    136. 

  136. 	{
    137. 

  137. 		//sv.oplanes[sv.nplanes+0]	=	Plane::CreatePlane( o[p0],o[p1], PointLight );
    138. 

  138. 		//sv.oplanes[sv.nplanes+1]	=	Plane::CreatePlane( o[p1],o[p2], PointLight );
    139. 

  139. 		//sv.oplanes[sv.nplanes+2]	=	Plane::CreatePlane( o[p2],o[p3], PointLight );
    140. 

  140. 		//sv.oplanes[sv.nplanes+3]	=	Plane::CreatePlane( o[p3],o[p4], PointLight );
    141. 

  141. 		//sv.oplanes[sv.nplanes+4]	=	Plane::CreatePlane( o[p4],o[p5], PointLight );
    142. 

  142. 		//sv.oplanes[sv.nplanes+5]	=	Plane::CreatePlane( o[p5],o[p0], PointLight );
    143. 

  143. 

  144. 		sv.sideamount=0;
    145. 

  145. 		a=(o[p1]-o[p0])|(o[p0]-PointLight); 
    146. 

  146.     assert(sv.nplanes+sv.sideamount<10);
    147. 

  147. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p0],o[p1], PointLight ); sv.sideamount++; }
    148. 

  148. 		a=(o[p2]-o[p1])|(o[p1]-PointLight); 
    149. 

  149.     assert(sv.nplanes+sv.sideamount<10);
    150. 

  150. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p1],o[p2], PointLight ); sv.sideamount++; }
    151. 

  151. 		a=(o[p3]-o[p2])|(o[p2]-PointLight); 
    152. 

  152.     assert(sv.nplanes+sv.sideamount<10);
    153. 

  153. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p2],o[p3], PointLight ); sv.sideamount++; }
    154. 

  154. 		a=(o[p4]-o[p3])|(o[p3]-PointLight); 
    155. 

  155.     assert(sv.nplanes+sv.sideamount<10);
    156. 

  156. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p3],o[p4], PointLight ); sv.sideamount++; }
    157. 

  157. 		a=(o[p5]-o[p4])|(o[p4]-PointLight); 
    158. 

  158.     assert(sv.nplanes+sv.sideamount<10);
    159. 

  159. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p4],o[p5], PointLight ); sv.sideamount++; }
    160. 

  160. 		a=(o[p0]-o[p5])|(o[p5]-PointLight); 
    161. 

  161.     assert(sv.nplanes+sv.sideamount<10);
    162. 

  162. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p5],o[p0], PointLight ); sv.sideamount++; }
    163. 

  163. 

  164. 	}
    165. 

  165. }
    166. 

  166. 

  167. inline void NAABB_SV::AABB_ShadowVolume(const Vec3& PointLight, const AABB& Occluder, Shadowvolume &sv, f32 lightrange) 
    168. 

  168. {
    169. 

  169. 	sv.sideamount=0;
    170. 

  170. 	sv.nplanes=0;
    171. 

  171. 

  172. 	//------------------------------------------------------------------------------
    173. 

  173. 	//-- check if PointLight is in front of any occluder plane or inside occluder --
    174. 

  174. 	//------------------------------------------------------------------------------
    175. 

  175. 	uint32 front=0;
    176. 

  176. 	if (PointLight.x<Occluder.min.x)  front|=0x01;
    177. 

  177. 	if (PointLight.x>Occluder.max.x)  front|=0x02;
    178. 

  178. 	if (PointLight.y<Occluder.min.y)  front|=0x04;
    179. 

  179. 	if (PointLight.y>Occluder.max.y)  front|=0x08;
    180. 

  180. 	if (PointLight.z<Occluder.min.z)  front|=0x10;
    181. 

  181. 	if (PointLight.z>Occluder.max.z)  front|=0x20;
    182. 

  182. 	if (front==0) return; //light is inside occluder
    183. 

  183. 	sv.sideamount = BoxSides[(front<<3)+7];
    184. 

  184. 

  185. 	if (front&0x01) { sv.oplanes[sv.nplanes].SetPlane(Vec3(-1,+0,+0),Occluder.min); sv.nplanes++; } 
    186. 

  186. 	if (front&0x02) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+1,+0,+0),Occluder.max); sv.nplanes++; }
    187. 

  187. 	if (front&0x04) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+0,-1,+0),Occluder.min); sv.nplanes++; } 
    188. 

  188. 	if (front&0x08) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+0,+1,+0),Occluder.max); sv.nplanes++; }
    189. 

  189. 	if (front&0x10) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+0,+0,-1),Occluder.min); sv.nplanes++; } 
    190. 

  190. 	if (front&0x20) { sv.oplanes[sv.nplanes].SetPlane(Vec3(+0,+0,+1),Occluder.max); sv.nplanes++; }
    191. 

  191. 

  192. 	//all 8 vertices of a AABB
    193. 

  193. 	Vec3 o[8] = 
    194. 

  194. 	{ 
    195. 

  195. 		Vec3(Occluder.min.x,Occluder.min.y,Occluder.min.z),
    196. 

  196. 			Vec3(Occluder.max.x,Occluder.min.y,Occluder.min.z),
    197. 

  197. 			Vec3(Occluder.min.x,Occluder.max.y,Occluder.min.z),
    198. 

  198. 			Vec3(Occluder.max.x,Occluder.max.y,Occluder.min.z),
    199. 

  199. 			Vec3(Occluder.min.x,Occluder.min.y,Occluder.max.z),
    200. 

  200. 			Vec3(Occluder.max.x,Occluder.min.y,Occluder.max.z),
    201. 

  201. 			Vec3(Occluder.min.x,Occluder.max.y,Occluder.max.z),
    202. 

  202. 			Vec3(Occluder.max.x,Occluder.max.y,Occluder.max.z)
    203. 

  203. 	};
    204. 

  204. 

  205. 	//---------------------------------------------------------------------
    206. 

  206. 	//---      find the silhouette-vertices of the occluder-AABB        ---
    207. 

  207. 	//---------------------------------------------------------------------
    208. 

  208. 	uint32 p0	=	BoxSides[(front<<3)+0];
    209. 

  209. 	uint32 p1	=	BoxSides[(front<<3)+1];
    210. 

  210. 	uint32 p2	=	BoxSides[(front<<3)+2];
    211. 

  211. 	uint32 p3	=	BoxSides[(front<<3)+3];
    212. 

  212. 	uint32 p4	=	BoxSides[(front<<3)+4];
    213. 

  213. 	uint32 p5	=	BoxSides[(front<<3)+5];
    214. 

  214. 

  215. 	//the new center-position in world-space
    216. 

  216. 	Vec3 MiddleOfOccluder	=	(Occluder.max+Occluder.min)*0.5f;
    217. 

  217. 	sv.oplanes[sv.nplanes]	=	Plane::CreatePlane( (MiddleOfOccluder-PointLight).GetNormalized() , (MiddleOfOccluder-PointLight).GetNormalized()*lightrange+PointLight );
    218. 

  218. 	sv.nplanes++;
    219. 

  219. 

  220. 	float a;
    221. 

  221. 	if(sv.sideamount==4) 
    222. 

  222. 	{
    223. 

  223. 		sv.sideamount=0;
    224. 

  224. 		a=(o[p1]-o[p0])|(o[p0]-PointLight); 
    225. 

  225. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p0],o[p1], PointLight ); sv.sideamount++; }
    226. 

  226. 		a=(o[p2]-o[p1])|(o[p1]-PointLight); 
    227. 

  227. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p1],o[p2], PointLight ); sv.sideamount++; }
    228. 

  228. 		a=(o[p3]-o[p2])|(o[p2]-PointLight); 
    229. 

  229. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p2],o[p3], PointLight ); sv.sideamount++; }
    230. 

  230. 		a=(o[p0]-o[p3])|(o[p3]-PointLight); 
    231. 

  231. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p3],o[p0], PointLight ); sv.sideamount++; }
    232. 

  232. 	}
    233. 

  233. 

  234. 	if(sv.sideamount==6) 
    235. 

  235. 	{
    236. 

  236. 		sv.sideamount=0;
    237. 

  237. 		a=(o[p1]-o[p0])|(o[p0]-PointLight); 
    238. 

  238. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p0],o[p1], PointLight ); sv.sideamount++; }
    239. 

  239. 		a=(o[p2]-o[p1])|(o[p1]-PointLight); 
    240. 

  240. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p1],o[p2], PointLight ); sv.sideamount++; }
    241. 

  241. 		a=(o[p3]-o[p2])|(o[p2]-PointLight); 
    242. 

  242. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p2],o[p3], PointLight ); sv.sideamount++; }
    243. 

  243. 		a=(o[p4]-o[p3])|(o[p3]-PointLight); 
    244. 

  244. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p3],o[p4], PointLight ); sv.sideamount++; }
    245. 

  245. 		a=(o[p5]-o[p4])|(o[p4]-PointLight); 
    246. 

  246. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p4],o[p5], PointLight ); sv.sideamount++; }
    247. 

  247. 		a=(o[p0]-o[p5])|(o[p5]-PointLight); 
    248. 

  248. 		if (a) { sv.oplanes[sv.nplanes+sv.sideamount]	=	Plane::CreatePlane( o[p5],o[p0], PointLight ); sv.sideamount++; }
    249. 

  249. 	}
    250. 

  250. }
    251. 

  251. 

  252. inline bool NAABB_SV::Is_AABB_In_ShadowVolume( const Shadowvolume &sv,  const AABB& Receiver ) 
    253. 

  253. {
    254. 

  254. 	uint32 pa=sv.sideamount+sv.nplanes;
    255. 

  255. 

  256. 	f32 d;
    257. 

  257. 	const Vec3* pAABB=&Receiver.min;
    258. 

  258. 

  259. 	union f32_u
    260. 

  260. 	{
    261. 

  261. 		float floatVal;
    262. 

  262. 		uint32 uintVal;
    263. 

  263. 	};
    264. 

  264. 

  265. 	//------------------------------------------------------------------------------
    266. 

  266. 	//----    check if receiver-AABB is in front of any of these planes       ------
    267. 

  267. 	//------------------------------------------------------------------------------
    268. 

  268. 	for (uint32 x=0; x<pa; x++) 
    269. 

  269. 	{ 
    270. 

  270. 		d=sv.oplanes[x].d;		
    271. 

  271. 

  272. 		//avoid breaking strict aliasing rules
    273. 

  273. 		f32_u ux;	ux.floatVal = sv.oplanes[x].n.x;
    274. 

  274. 		f32_u uy;	uy.floatVal = sv.oplanes[x].n.y;
    275. 

  275. 		f32_u uz;	uz.floatVal = sv.oplanes[x].n.z;
    276. 

  276. 		const uint32 bitX	=	ux.uintVal>>31;
    277. 

  277. 		const uint32 bitY	=	uy.uintVal>>31;
    278. 

  278. 		const uint32 bitZ	=	uz.uintVal>>31;
    279. 

  279. 

  280. 		d += sv.oplanes[x].n.x * pAABB[bitX].x;
    281. 

  281. 		d += sv.oplanes[x].n.y * pAABB[bitY].y;
    282. 

  282. 		d += sv.oplanes[x].n.z * pAABB[bitZ].z;
    283. 

  283. 		if (d>0) return CULL_EXCLUSION;		
    284. 

  284. 	}
    285. 

  285. 	return CULL_OVERLAP;
    286. 

  286. }
    287. 

  287. 

  288. inline char NAABB_SV::Is_AABB_In_ShadowVolume_hierarchical( const Shadowvolume &sv,  const AABB& Receiver ) 
    289. 

  289. {
    290. 

  290. 	uint32 pa=sv.sideamount+sv.nplanes;
    291. 

  291. 	const Vec3* pAABB=&Receiver.min;
    292. 

  292. 

  293. 	f32 dot1,dot2;
    294. 

  294. 	uint32 notOverlap = 0x80000000; // will be reset to 0 if there's at least one overlapping
    295. 

  295. 

  296. 	union f32_u
    297. 

  297. 	{
    298. 

  298. 		float floatVal;
    299. 

  299. 		uint32 uintVal;
    300. 

  300. 	};
    301. 

  301. 

  302. 	//------------------------------------------------------------------------------
    303. 

  303. 	//----    check if receiver-AABB is in front of any of these planes       ------
    304. 

  304. 	//------------------------------------------------------------------------------
    305. 

  305. 	for (uint32 x=0; x<pa; x++) 
    306. 

  306. 	{
    307. 

  307. 		dot1=dot2=sv.oplanes[x].d;		
    308. 

  308. 		
    309. 

  309. 		//avoid breaking strict aliasing rules
    310. 

  310. 		f32_u ux;	ux.floatVal = sv.oplanes[x].n.x;
    311. 

  311. 		f32_u uy;	uy.floatVal = sv.oplanes[x].n.y;
    312. 

  312. 		f32_u uz;	uz.floatVal = sv.oplanes[x].n.z;
    313. 

  313. 		const uint32 bitX	=	ux.uintVal>>31;
    314. 

  314. 		const uint32 bitY	=	uy.uintVal>>31;
    315. 

  315. 		const uint32 bitZ	=	uz.uintVal>>31;
    316. 

  316. 

  317. 		dot1 += sv.oplanes[x].n.x * pAABB[0+bitX].x;
    318. 

  318. 		dot2 += sv.oplanes[x].n.x * pAABB[1-bitX].x;
    319. 

  319. 		dot1 += sv.oplanes[x].n.y * pAABB[0+bitY].y;
    320. 

  320. 		dot2 += sv.oplanes[x].n.y * pAABB[1-bitY].y;
    321. 

  321. 		dot1 += sv.oplanes[x].n.z * pAABB[0+bitZ].z;
    322. 

  322. 		dot2 += sv.oplanes[x].n.z * pAABB[1-bitZ].z;
    323. 

  323. 		PREFAST_SUPPRESS_WARNING(6001) f32_u d;  d.floatVal = dot1; if ( !(d.uintVal&0x80000000) ) return CULL_EXCLUSION;		
    324. 

  324. 		PREFAST_SUPPRESS_WARNING(6001) f32_u d2; d.floatVal = dot2; notOverlap &= d2.uintVal;
    325. 

  325. 	}
    326. 

  326. 	if (notOverlap)	return CULL_INCLUSION; 
    327. 

  327. 	return CULL_OVERLAP;
    328. 

  328. }
    329. 

  329. 

  330. #endif
    331.