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129 lines
3.1 KiB
129 lines
3.1 KiB
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef GLOW_OVERLAY_H
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#define GLOW_OVERLAY_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "mathlib/vector.h"
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#include "materialsystem/imaterial.h"
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#include "sun_shared.h"
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#include "c_pixel_visibility.h"
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#ifdef PORTAL
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#include "c_prop_portal.h" //MAX_PORTAL_RECURSIVE_VIEWS
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#endif
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extern float g_flOverlayRange;
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class CGlowSprite
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{
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public:
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Vector m_vColor; // 0-1
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float m_flHorzSize; // Horizontal and vertical sizes.
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float m_flVertSize; // 1 = size of the sun
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IMaterial *m_pMaterial; // Material to use
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};
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class CGlowOverlay
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{
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public:
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CGlowOverlay();
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virtual ~CGlowOverlay();
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// Return false to remove (and delete) the overlay.
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virtual bool Update();
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// Data the creator should fill in.
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public:
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// Position of the light source. If m_bDirectional is set, then it ignores
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// this and uses m_vDirection as the direction of the light source.
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Vector m_vPos;
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// Optional direction. Used for really far away things like the sun.
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// The direction should point AT the light source.
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bool m_bDirectional;
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Vector m_vDirection;
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// If this is set, then the overlay is only visible if the ray to it hits the sky.
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bool m_bInSky;
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float m_skyObstructionScale;
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#ifdef PORTAL
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float m_skyObstructionScaleBackups[MAX_PORTAL_RECURSIVE_VIEWS]; //used in portal mod during stencil rendering to maintain obstructions while rendering recursive views
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#endif
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CGlowSprite m_Sprites[MAX_SUN_LAYERS];
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int m_nSprites;
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float m_flProxyRadius;
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float m_flHDRColorScale;
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public:
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// After creating the overlay, call this to add it to the active list.
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// You can also call Activate and Deactivate as many times as you want.
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void Activate();
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void Deactivate();
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// Render all the active overlays.
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static void DrawOverlays( bool bCacheFullSceneState );
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static void UpdateSkyOverlays( float zFar, bool bCacheFullSceneState );
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#ifdef PORTAL
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static void BackupSkyOverlayData( int iBackupToSlot );
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static void RestoreSkyOverlayData( int iRestoreFromSlot );
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#endif
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protected:
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void UpdateGlowObstruction( const Vector &vToGlow, bool bCacheFullSceneState );
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void UpdateSkyGlowObstruction( float zFar, bool bCacheFullSceneState );
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virtual void CalcSpriteColorAndSize(
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float flDot,
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CGlowSprite *pSprite,
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float *flHorzSize,
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float *flVertSize,
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Vector *vColor );
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virtual void CalcBasis(
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const Vector &vToGlow,
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float flHorzSize,
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float flVertSize,
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Vector &vBasePt,
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Vector &vUp,
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Vector &vRight );
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virtual void Draw( bool bCacheFullSceneState );
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float CalcGlowAspect();
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float m_flGlowObstructionScale;
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bool m_bCacheGlowObstruction; // Flags to cache obstruction scales
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bool m_bCacheSkyObstruction; // Used in IFM poster rendering
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private:
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short m_bActivated;
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unsigned short m_ListIndex; // index into s_GlowOverlays.
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pixelvis_handle_t m_queryHandle;
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};
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//Override for warping
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class CWarpOverlay : public CGlowOverlay
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{
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protected:
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virtual void Draw( bool bCacheFullSceneState );
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};
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#endif // GLOW_OVERLAY_H
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