mirror of
https://github.com/ptitSeb/Serious-Engine
synced 2024-11-25 11:45:53 +01:00
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
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/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
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#include "stdh.h"
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#include <Engine/Graphics/Stereo.h>
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#include <Engine/Math/Projection.h>
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#include <Engine/Graphics/GfxLibrary.h>
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#include <Engine/Graphics/ViewPort.h>
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#include <Engine/Graphics/Gfx_wrapper.h>
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extern INDEX gfx_iStereo;
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extern INDEX gfx_bStereoInvert;
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extern INDEX gfx_iStereoOffset;
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extern FLOAT gfx_fStereoSeparation;
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// query whether user has turned stereo rendering on
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BOOL Stereo_IsEnabled(void)
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{
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return gfx_iStereo!=0;
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}
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// set buffer for stereo rendering left/right/nostereo
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void Stereo_SetBuffer(INDEX iEye)
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{
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if( gfx_bStereoInvert) gfx_bStereoInvert = 1;
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const ULONG ulLeftMask = gfx_bStereoInvert ? CT_BMASK|CT_GMASK : CT_RMASK;
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const ULONG ulRightMask = gfx_bStereoInvert ? CT_RMASK : CT_BMASK|CT_GMASK;
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if( iEye==STEREO_BOTH || gfx_iStereo==0) {
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gfxSetColorMask(CT_RMASK|CT_GMASK|CT_BMASK|CT_AMASK);
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} else if (iEye==STEREO_LEFT) {
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gfxSetColorMask(ulLeftMask);
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} else if (iEye==STEREO_RIGHT) {
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gfxSetColorMask(ulRightMask);
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}
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}
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// adjust perspective projection stereo rendering left/right/nostereo
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void Stereo_AdjustProjection(CProjection3D &pr, INDEX iEye, FLOAT fFactor)
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{
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// prepare and clamp
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CPerspectiveProjection3D &ppr = (CPerspectiveProjection3D &)pr;
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gfx_fStereoSeparation = Clamp( gfx_fStereoSeparation, 0.01f, 1.0f);
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gfx_iStereoOffset = Clamp( gfx_iStereoOffset, -100L, +100L);
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// apply!
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if (iEye==STEREO_BOTH || gfx_iStereo==0) {
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NOTHING;
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} else if (iEye==STEREO_LEFT) {
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pr.ViewerPlacementL().Translate_OwnSystem( FLOAT3D(-gfx_fStereoSeparation*fFactor/2,0,0) );
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ppr.ppr_boxSubScreen = ppr.pr_ScreenBBox;
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ppr.ppr_boxSubScreen -= FLOAT2D(-gfx_iStereoOffset/2.0f, 0.0f);
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} else if (iEye==STEREO_RIGHT) {
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pr.ViewerPlacementL().Translate_OwnSystem( FLOAT3D(+gfx_fStereoSeparation*fFactor/2,0,0) );
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ppr.ppr_boxSubScreen = ppr.pr_ScreenBBox;
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ppr.ppr_boxSubScreen -= FLOAT2D(+gfx_iStereoOffset/2.0f, 0.0f);
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}
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}
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