97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//=============================================================================//
|
|
|
|
#ifndef R_AREAPORTAL_H
|
|
#define R_AREAPORTAL_H
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
|
|
#include "utlvector.h"
|
|
#include "gl_model_private.h"
|
|
|
|
|
|
class Frustum_t;
|
|
|
|
|
|
// Used to clip area portals. The coordinates here are in normalized
|
|
// view space (-1,-1) - (1,1)
|
|
// BUGBUG: NOTE!!!: These are left->right, and bottom->top, so a full rect is left=-1,top=1,right=1,bottom=-1
|
|
class CPortalRect
|
|
{
|
|
public:
|
|
float left, top, right, bottom;
|
|
};
|
|
|
|
|
|
// ---------------------------------------------------------------------------- //
|
|
// Functions.
|
|
// ---------------------------------------------------------------------------- //
|
|
|
|
// Copies cl.pAreaBits, finds the area the viewer is in, and figures out what
|
|
// other areas are visible. The new bits are placed in g_RenderAreaBits.
|
|
void R_SetupAreaBits( int iForceViewLeaf = -1, const VisOverrideData_t* pVisData = NULL, float *pWaterReflectionHeight = NULL );
|
|
|
|
// Ask if an area is visible to the renderer.
|
|
unsigned char R_IsAreaVisible( int area );
|
|
|
|
void R_Areaportal_LevelInit();
|
|
void R_Areaportal_LevelShutdown();
|
|
|
|
// Decides if the node can be seen through the area portals (ie: if you're
|
|
// looking out a window with an areaportal in it, this will clip out the
|
|
// stuff to the sides).
|
|
enum
|
|
{
|
|
FRUSTUM_CLIP_RIGHT = (1 << FRUSTUM_RIGHT),
|
|
FRUSTUM_CLIP_LEFT = (1 << FRUSTUM_LEFT),
|
|
FRUSTUM_CLIP_TOP = (1 << FRUSTUM_TOP),
|
|
FRUSTUM_CLIP_BOTTOM = (1 << FRUSTUM_BOTTOM),
|
|
|
|
FRUSTUM_CLIP_MASK = FRUSTUM_CLIP_RIGHT | FRUSTUM_CLIP_LEFT | FRUSTUM_CLIP_TOP | FRUSTUM_CLIP_BOTTOM,
|
|
|
|
// This mask is used to reset the clip flags when we first enter an area
|
|
FRUSTUM_CLIP_IN_AREA = 0x80000000,
|
|
|
|
// Set the clipmask to this to cause it to clip against all frustum planes
|
|
FRUSTUM_CLIP_ALL = FRUSTUM_CLIP_MASK,
|
|
|
|
// Set the clipmask to this to suppress all future clipping
|
|
FRUSTUM_SUPPRESS_CLIPPING = FRUSTUM_CLIP_IN_AREA,
|
|
};
|
|
|
|
|
|
bool R_CullNode( Frustum_t *pAreaFrustum, mnode_t *pNode, int &nClipMask );
|
|
|
|
const Frustum_t* GetAreaFrustum( int area );
|
|
|
|
|
|
// ---------------------------------------------------------------------------- //
|
|
// Globals.
|
|
// ---------------------------------------------------------------------------- //
|
|
|
|
extern ConVar r_DrawPortals;
|
|
|
|
// Used when r_DrawPortals is on. Draws the screen space rects for each portal.
|
|
extern CUtlVector<CPortalRect> g_PortalRects;
|
|
|
|
|
|
|
|
// ---------------------------------------------------------------------------- //
|
|
// Inlines.
|
|
// ---------------------------------------------------------------------------- //
|
|
|
|
inline unsigned char R_IsAreaVisible( int area )
|
|
{
|
|
extern unsigned char g_RenderAreaBits[32];
|
|
return g_RenderAreaBits[area>>3] & (1 << (area&7));
|
|
}
|
|
|
|
|
|
#endif // R_AREAPORTAL_H
|