// begin/end model rendering to screen
void BeginModelRenderingView( CAnyProjection3D &prProjection, CDrawPort *pdp)
{
ASSERT( _iRenderingType==0 && _pdp==NULL);
// set 3D projection
_iRenderingType = 1;
_pdp = pdp;
prProjection->ObjectPlacementL() = CPlacement3D(FLOAT3D(0,0,0), ANGLE3D(0,0,0));
prProjection->Prepare();
// in case of mirror projection, move mirror clip plane a bit father from the mirrored models,
// so we have less clipping (for instance, player feet)
if( prProjection->pr_bMirror) prProjection->pr_plMirrorView.pl_distance -= 0.06f; // -0.06 is because entire projection is offseted by +0.05
_aprProjection = prProjection;
_pdp->SetProjection( _aprProjection);
// make FPU precision low
_fpuOldPrecision = GetFPUPrecision();
SetFPUPrecision(FPT_24BIT);
// prepare common arrays for simple shadows rendering
_avtxCommon.PopAll();
_atexCommon.PopAll();
_acolCommon.PopAll();
// eventually setup truform
extern INDEX gap_bForceTruform;
extern INDEX ogl_bTruformLinearNormals;
if( ogl_bTruformLinearNormals) ogl_bTruformLinearNormals = 1;
if( gap_bForceTruform) {
gap_bForceTruform = 1;
gfxSetTruform( _pGfx->gl_iTessellationLevel, ogl_bTruformLinearNormals);
}
}
// Prepare scene for terrain rendering
void PrepareScene(CAnyProjection3D &apr, CDrawPort *pdp, CTerrain *ptrTerrain)
{
ASSERT(ptrTerrain!=NULL);
ASSERT(ptrTerrain->tr_penEntity!=NULL);
// Set current terrain
_ptrTerrain = ptrTerrain;
// Set drawport
_pdp = pdp;
// Prepare and set the projection
apr->ObjectPlacementL() = CPlacement3D(FLOAT3D(0,0,0), ANGLE3D(0,0,0));
apr->Prepare();
_aprProjection = apr;
_pdp->SetProjection( _aprProjection);
CEntity *pen = ptrTerrain->tr_penEntity;
// calculate projection of viewer in absolute space
const FLOATmatrix3D &mViewer = _aprProjection->pr_ViewerRotationMatrix;
_vViewer(1) = -mViewer(3,1);
_vViewer(2) = -mViewer(3,2);
_vViewer(3) = -mViewer(3,3);
// calculate projection of viewer in object space
_vViewerObj = _vViewer * !pen->en_mRotation;
const CPlacement3D &plTerrain = pen->GetLerpedPlacement();
_mObjectToView = mViewer * pen->en_mRotation;
_vObjectToView = (plTerrain.pl_PositionVector - _aprProjection->pr_vViewerPosition) * mViewer;
// make transform matrix
const FLOATmatrix3D &m = _mObjectToView;
const FLOAT3D &v = _vObjectToView;
FLOAT glm[16];
glm[0] = m(1,1); glm[4] = m(1,2); glm[ 8] = m(1,3); glm[12] = v(1);
glm[1] = m(2,1); glm[5] = m(2,2); glm[ 9] = m(2,3); glm[13] = v(2);
glm[2] = m(3,1); glm[6] = m(3,2); glm[10] = m(3,3); glm[14] = v(3);
glm[3] = 0; glm[7] = 0; glm[11] = 0; glm[15] = 1;
gfxSetViewMatrix(glm);
// Get viewer in absolute space
_vViewerAbs = (_aprProjection->ViewerPlacementR().pl_PositionVector -
pen->en_plPlacement.pl_PositionVector) * !pen->en_mRotation;
gfxDisableBlend();
gfxDisableTexture();
gfxDisableAlphaTest();
gfxEnableDepthTest();
gfxEnableDepthWrite();
gfxCullFace(GFX_BACK);
}
static void RenderHazeLayer(INDEX itt)
{
FLOAT3D vObjPosition = _ptrTerrain->tr_penEntity->en_plPlacement.pl_PositionVector;
_fHazeAdd = -_haze_hp.hp_fNear;
_fHazeAdd += _vViewer(1) * (vObjPosition(1) - _aprProjection->pr_vViewerPosition(1));
_fHazeAdd += _vViewer(2) * (vObjPosition(2) - _aprProjection->pr_vViewerPosition(2));
_fHazeAdd += _vViewer(3) * (vObjPosition(3) - _aprProjection->pr_vViewerPosition(3));
GFXVertex *pvVtx;
INDEX *piIndices;
INDEX ctVertices;
INDEX ctIndices;
// if this is tile
if(itt>=0) {
CTerrainTile &tt = _ptrTerrain->tr_attTiles[itt];
pvVtx = &tt.GetVertices()[0];
piIndices = &tt.GetIndices()[0];
ctVertices = tt.GetVertices().Count();
ctIndices = tt.GetIndices().Count();
// else this are batched tiles
} else {
pvVtx = &_avDelayedVertices[0];
piIndices = &_aiDelayedIndices[0];
ctVertices = _avDelayedVertices.Count();
ctIndices = _aiDelayedIndices.Count();
}
GFXTexCoord *pfHazeTC = _atcHaze.Push(ctVertices);
GFXColor *pcolHaze = _acolHaze.Push(ctVertices);
const COLOR colH = AdjustColor( _haze_hp.hp_colColor, _slTexHueShift, _slTexSaturation);
GFXColor colHaze(colH);
// for each vertex in tile
for(INDEX ivx=0;ivx<ctVertices;ivx++) {
GetHazeMapInVertex(pvVtx[ivx],pfHazeTC[ivx]);
pcolHaze[ivx] = colHaze;
}
// render haze layer
gfxDepthFunc(GFX_EQUAL);
gfxSetTextureWrapping( GFX_CLAMP, GFX_CLAMP);
gfxSetTexture( _haze_ulTexture, _haze_tpLocal);
gfxSetTexCoordArray(pfHazeTC, FALSE);
gfxSetColorArray(pcolHaze);
gfxBlendFunc( GFX_SRC_ALPHA, GFX_INV_SRC_ALPHA);
gfxEnableBlend();
gfxDrawElements(ctIndices,piIndices);
gfxDepthFunc(GFX_LESS_EQUAL);
_atcHaze.PopAll();
_acolHaze.PopAll();
}
// Draw one quad tree node ( draws terrain tile in wireframe mode if leaf node )
static void DrawWireQuadTreeNode(INDEX iqtn)
{
ASSERT(_ptrTerrain!=NULL);
CEntity *pen = _ptrTerrain->tr_penEntity;
QuadTreeNode &qtn = _ptrTerrain->tr_aqtnQuadTreeNodes[iqtn];
FLOATmatrix3D &mAbsToView = _aprProjection->pr_ViewerRotationMatrix;
FLOATobbox3D obbox = FLOATobbox3D( qtn.qtn_aabbox,
(pen->en_plPlacement.pl_PositionVector-_aprProjection->pr_vViewerPosition)*mAbsToView, mAbsToView*pen->en_mRotation);
INDEX iFrustumTest = _aprProjection->TestBoxToFrustum(obbox);
if(iFrustumTest!=(-1)) {
// is this leaf node
if(qtn.qtn_iTileIndex != -1) {
_ctNodesVis++;
// draw terrain tile for this node
RenderWireTile(qtn.qtn_iTileIndex);
// this node has some children
} else {
for(INDEX iqc=0;iqc<4;iqc++) {
INDEX iChildNode = qtn.qtn_iChild[iqc];
// if child node exists
if(iChildNode != -1) {
// draw child node
DrawWireQuadTreeNode(qtn.qtn_iChild[iqc]);
}
}
}
}
}
static void RenderFogLayer(INDEX itt)
{
FLOATmatrix3D &mViewer = _aprProjection->pr_ViewerRotationMatrix;
FLOAT3D vObjPosition = _ptrTerrain->tr_penEntity->en_plPlacement.pl_PositionVector;
// get viewer -z in object space
_vFViewerObj = FLOAT3D(0,0,-1) * !_mObjectToView;
// get fog direction in object space
_vHDirObj = _fog_vHDirAbs * !(!mViewer*_mObjectToView);
// get viewer offset
_fFogAddZ = _vViewer(1) * (vObjPosition(1) - _aprProjection->pr_vViewerPosition(1));
_fFogAddZ += _vViewer(2) * (vObjPosition(2) - _aprProjection->pr_vViewerPosition(2));
_fFogAddZ += _vViewer(3) * (vObjPosition(3) - _aprProjection->pr_vViewerPosition(3));
// get fog offset
_fFogAddH = (_fog_vHDirAbs % vObjPosition) + _fog_fp.fp_fH3;
GFXVertex *pvVtx;
INDEX *piIndices;
INDEX ctVertices;
INDEX ctIndices;
// if this is tile
if(itt>=0) {
CTerrainTile &tt = _ptrTerrain->tr_attTiles[itt];
pvVtx = &tt.GetVertices()[0];
piIndices = &tt.GetIndices()[0];
ctVertices = tt.GetVertices().Count();
ctIndices = tt.GetIndices().Count();
// else this are batched tiles
} else {
pvVtx = &_avDelayedVertices[0];
piIndices = &_aiDelayedIndices[0];
ctVertices = _avDelayedVertices.Count();
ctIndices = _aiDelayedIndices.Count();
}
GFXTexCoord *pfFogTC = _atcHaze.Push(ctVertices);
GFXColor *pcolFog = _acolHaze.Push(ctVertices);
const COLOR colF = AdjustColor( _fog_fp.fp_colColor, _slTexHueShift, _slTexSaturation);
GFXColor colFog(colF);
// for each vertex in tile
for(INDEX ivx=0;ivx<ctVertices;ivx++) {
GetFogMapInVertex(pvVtx[ivx],pfFogTC[ivx]);
pcolFog[ivx] = colFog;
}
// render fog layer
gfxDepthFunc(GFX_EQUAL);
gfxSetTextureWrapping( GFX_CLAMP, GFX_CLAMP);
gfxSetTexture( _fog_ulTexture, _fog_tpLocal);
gfxSetTexCoordArray(pfFogTC, FALSE);
gfxSetColorArray(pcolFog);
gfxBlendFunc( GFX_SRC_ALPHA, GFX_INV_SRC_ALPHA);
gfxEnableBlend();
gfxDisableAlphaTest();
gfxDrawElements(ctIndices,piIndices);
gfxDepthFunc(GFX_LESS_EQUAL);
_atcHaze.PopAll();
_acolHaze.PopAll();
}
// setup CRenderModel class for rendering one model and eventually it's shadow(s)
void CModelObject::SetupModelRendering( CRenderModel &rm)
{
_sfStats.IncrementCounter( CStatForm::SCI_MODELS);
_pfModelProfile.StartTimer( CModelProfile::PTI_INITMODELRENDERING);
_pfModelProfile.IncrementTimerAveragingCounter( CModelProfile::PTI_INITMODELRENDERING);
// get model's data and lerp info
rm.rm_pmdModelData = (CModelData*)GetData();
GetFrame( rm.rm_iFrame0, rm.rm_iFrame1, rm.rm_fRatio);
const INDEX ctVertices = rm.rm_pmdModelData->md_VerticesCt;
if( rm.rm_pmdModelData->md_Flags & MF_COMPRESSED_16BIT) {
// set pFrame to point to last and next frames' vertices
rm.rm_pFrame16_0 = &rm.rm_pmdModelData->md_FrameVertices16[rm.rm_iFrame0 *ctVertices];
rm.rm_pFrame16_1 = &rm.rm_pmdModelData->md_FrameVertices16[rm.rm_iFrame1 *ctVertices];
} else {
// set pFrame to point to last and next frames' vertices
rm.rm_pFrame8_0 = &rm.rm_pmdModelData->md_FrameVertices8[rm.rm_iFrame0 *ctVertices];
rm.rm_pFrame8_1 = &rm.rm_pmdModelData->md_FrameVertices8[rm.rm_iFrame1 *ctVertices];
}
// obtain current rendering preferences
rm.rm_rtRenderType = _mrpModelRenderPrefs.GetRenderType();
// remember blending color
rm.rm_colBlend = MulColors( rm.rm_colBlend, mo_colBlendColor);
// get decompression/stretch factors
FLOAT3D &vDataStretch = rm.rm_pmdModelData->md_Stretch;
rm.rm_vStretch(1) = vDataStretch(1) * mo_Stretch(1);
rm.rm_vStretch(2) = vDataStretch(2) * mo_Stretch(2);
rm.rm_vStretch(3) = vDataStretch(3) * mo_Stretch(3);
rm.rm_vOffset = rm.rm_pmdModelData->md_vCompressedCenter;
// check if object is inverted (in mirror)
BOOL bXInverted = rm.rm_vStretch(1) < 0;
BOOL bYInverted = rm.rm_vStretch(2) < 0;
BOOL bZInverted = rm.rm_vStretch(3) < 0;
rm.rm_ulFlags &= ~RMF_INVERTED;
if( bXInverted != bYInverted != bZInverted != _aprProjection->pr_bInverted) rm.rm_ulFlags |= RMF_INVERTED;
// prepare projections
_pfModelProfile.StartTimer( CModelProfile::PTI_INITPROJECTION);
_pfModelProfile.IncrementTimerAveragingCounter( CModelProfile::PTI_INITPROJECTION);
PrepareView(rm);
_pfModelProfile.StopTimer( CModelProfile::PTI_INITPROJECTION);
// get mip factor from projection (if needed)
if( (INDEX&)rm.rm_fDistanceFactor==12345678) {
FLOAT3D vObjectAbs;
_aprProjection->PreClip( rm.rm_vObjectPosition, vObjectAbs);
rm.rm_fDistanceFactor = _aprProjection->MipFactor( Min(vObjectAbs(3), 0.0f));
}
// adjust mip factor in case of dynamic stretch factor
if( mo_Stretch != FLOAT3D(1,1,1)) {
rm.rm_fMipFactor = rm.rm_fDistanceFactor - Log2( Max(mo_Stretch(1),Max(mo_Stretch(2),mo_Stretch(3))));
} else {
rm.rm_fMipFactor = rm.rm_fDistanceFactor;
}
// adjust mip factor by custom settings
rm.rm_fMipFactor = rm.rm_fMipFactor*mdl_fLODMul +mdl_fLODAdd;
// get current mip model using mip factor
rm.rm_iMipLevel = GetMipModel( rm.rm_fMipFactor);
mo_iLastRenderMipLevel = rm.rm_iMipLevel;
// get current vertices mask
rm.rm_pmmiMip = &rm.rm_pmdModelData->md_MipInfos[rm.rm_iMipLevel];
// don't allow any shading, if shading is turned off
if( rm.rm_rtRenderType & RT_SHADING_NONE) {
rm.rm_colAmbient = C_WHITE|CT_OPAQUE;
rm.rm_colLight = C_BLACK;
}
// calculate light vector as seen from model, so that vertex normals
// do not need to be transformed for lighting calculations
FLOAT fLightDirection=(rm.rm_vLightDirection).Length();
if( fLightDirection>0.001f) {
rm.rm_vLightDirection /= fLightDirection;
} else {
rm.rm_vLightDirection = FLOAT3D(0,0,0);
}
rm.rm_vLightObj = rm.rm_vLightDirection * !rm.rm_mObjectRotation;
// precalculate rendering data if needed
extern void PrepareModelForRendering( CModelData &md);
PrepareModelForRendering( *rm.rm_pmdModelData);
// done with setup if viewing from this model
if( rm.rm_ulFlags&RMF_SPECTATOR) {
_pfModelProfile.StopTimer( CModelProfile::PTI_INITMODELRENDERING);
return;
}
_pfModelProfile.StartTimer( CModelProfile::PTI_INITATTACHMENTS);
// for each attachment on this model object
FOREACHINLIST( CAttachmentModelObject, amo_lnInMain, mo_lhAttachments, itamo) {
_pfModelProfile.IncrementTimerAveragingCounter( CModelProfile::PTI_INITATTACHMENTS);
CAttachmentModelObject *pamo = itamo;
// create new render model structure
pamo->amo_prm = &_armRenderModels.Push();
const BOOL bVisible = CreateAttachment( rm, *pamo);
if( !bVisible) { // skip if not visible
pamo->amo_prm = NULL;
_armRenderModels.Pop();
continue;
} // prepare if visible
_pfModelProfile.StopTimer( CModelProfile::PTI_INITMODELRENDERING);
_pfModelProfile.StopTimer( CModelProfile::PTI_INITATTACHMENTS);
pamo->amo_moModelObject.SetupModelRendering( *pamo->amo_prm);
_pfModelProfile.StartTimer( CModelProfile::PTI_INITATTACHMENTS);
_pfModelProfile.StartTimer( CModelProfile::PTI_INITMODELRENDERING);
}
// Create render model structure for rendering an attached model
BOOL CModelObject::CreateAttachment( CRenderModel &rmMain, CAttachmentModelObject &amo)
{
_pfModelProfile.StartTimer( CModelProfile::PTI_CREATEATTACHMENT);
_pfModelProfile.IncrementTimerAveragingCounter( CModelProfile::PTI_CREATEATTACHMENT);
CRenderModel &rmAttached = *amo.amo_prm;
rmAttached.rm_ulFlags = rmMain.rm_ulFlags&(RMF_FOG|RMF_HAZE|RMF_WEAPON) | RMF_ATTACHMENT;
// get the position
rmMain.rm_pmdModelData->md_aampAttachedPosition.Lock();
const CAttachedModelPosition & = rmMain.rm_pmdModelData->md_aampAttachedPosition[amo.amo_iAttachedPosition];
rmMain.rm_pmdModelData->md_aampAttachedPosition.Unlock();
// copy common values
rmAttached.rm_vLightDirection = rmMain.rm_vLightDirection;
rmAttached.rm_fDistanceFactor = rmMain.rm_fDistanceFactor;
rmAttached.rm_colLight = rmMain.rm_colLight;
rmAttached.rm_colAmbient = rmMain.rm_colAmbient;
rmAttached.rm_colBlend = rmMain.rm_colBlend;
// unpack the reference vertices
FLOAT3D vCenter, vFront, vUp;
const INDEX iCenter = amp.amp_iCenterVertex;
const INDEX iFront = amp.amp_iFrontVertex;
const INDEX iUp = amp.amp_iUpVertex;
UnpackVertex( rmMain, iCenter, vCenter);
UnpackVertex( rmMain, iFront, vFront);
UnpackVertex( rmMain, iUp, vUp);
// create front and up direction vectors
FLOAT3D vY = vUp - vCenter;
FLOAT3D vZ = vCenter - vFront;
// project center and directions from object to absolute space
const FLOATmatrix3D &mO2A = rmMain.rm_mObjectRotation;
const FLOAT3D &vO2A = rmMain.rm_vObjectPosition;
vCenter = vCenter*mO2A +vO2A;
vY = vY *mO2A;
vZ = vZ *mO2A;
// make a rotation matrix from the direction vectors
FLOAT3D vX = vY*vZ;
vY = vZ*vX;
vX.Normalize();
vY.Normalize();
vZ.Normalize();
FLOATmatrix3D mOrientation;
mOrientation(1,1) = vX(1); mOrientation(1,2) = vY(1); mOrientation(1,3) = vZ(1);
mOrientation(2,1) = vX(2); mOrientation(2,2) = vY(2); mOrientation(2,3) = vZ(2);
mOrientation(3,1) = vX(3); mOrientation(3,2) = vY(3); mOrientation(3,3) = vZ(3);
// adjust for relative placement of the attachment
FLOAT3D vOffset;
FLOATmatrix3D mRelative;
MakeRotationMatrixFast( mRelative, amo.amo_plRelative.pl_OrientationAngle);
vOffset(1) = amo.amo_plRelative.pl_PositionVector(1) * mo_Stretch(1);
vOffset(2) = amo.amo_plRelative.pl_PositionVector(2) * mo_Stretch(2);
vOffset(3) = amo.amo_plRelative.pl_PositionVector(3) * mo_Stretch(3);
FLOAT3D vO = vCenter + vOffset * mOrientation;
mOrientation *= mRelative; // convert absolute to relative orientation
rmAttached.SetObjectPlacement( vO, mOrientation);
// done here if clipping optimizations are not allowed
extern INDEX gap_iOptimizeClipping;
if( gap_iOptimizeClipping<1) {
gap_iOptimizeClipping = 0;
_pfModelProfile.StopTimer( CModelProfile::PTI_CREATEATTACHMENT);
return TRUE;
}
// test attachment to frustum and/or mirror
FLOAT3D vHandle;
_aprProjection->PreClip( vO, vHandle);
CalculateBoundingBox( &amo.amo_moModelObject, rmAttached);
// compose view-space bounding box and sphere of an attacment
const FLOAT fR = Max( rmAttached.rm_vObjectMinBB.Length(), rmAttached.rm_vObjectMaxBB.Length());
const FLOATobbox3D boxEntity( FLOATaabbox3D(rmAttached.rm_vObjectMinBB, rmAttached.rm_vObjectMaxBB),
vHandle, _aprProjection->pr_ViewerRotationMatrix*mOrientation);
// frustum test?
if( gap_iOptimizeClipping>1) {
// test sphere against frustrum
INDEX iFrustumTest = _aprProjection->TestSphereToFrustum(vHandle,fR);
if( iFrustumTest==0) {
// test box if sphere cut one of frustum planes
iFrustumTest = _aprProjection->TestBoxToFrustum(boxEntity);
}
// mark if attachment is fully inside frustum
if( iFrustumTest>0) rmAttached.rm_ulFlags |= RMF_INSIDE;
else if( iFrustumTest<0) { // if completely outside of frustum
// signal skip rendering only if doesn't have any attachments
_pfModelProfile.StopTimer( CModelProfile::PTI_CREATEATTACHMENT);
return !amo.amo_moModelObject.mo_lhAttachments.IsEmpty();
}
}
// test sphere against mirror/warp plane (if any)
if( _aprProjection->pr_bMirror || _aprProjection->pr_bWarp) {
INDEX iMirrorPlaneTest;
const FLOAT fPlaneDistance = _aprProjection->pr_plMirrorView.PointDistance(vHandle);
if( fPlaneDistance < -fR) iMirrorPlaneTest = -1;
else if( fPlaneDistance > +fR) iMirrorPlaneTest = +1;
else { // test box if sphere cut mirror plane
iMirrorPlaneTest = boxEntity.TestAgainstPlane(_aprProjection->pr_plMirrorView);
}
// mark if attachment is fully inside mirror
if( iMirrorPlaneTest>0) rmAttached.rm_ulFlags |= RMF_INMIRROR;
else if( iMirrorPlaneTest<0) { // if completely outside mirror
// signal skip rendering only if doesn't have any attachments
_pfModelProfile.StopTimer( CModelProfile::PTI_CREATEATTACHMENT);
return !amo.amo_moModelObject.mo_lhAttachments.IsEmpty();
}
}
// all done
_pfModelProfile.StopTimer( CModelProfile::PTI_CREATEATTACHMENT);
return TRUE;
}
void CAM_Render(CEntity *pen, CDrawPort *pdp)
{
if( cam_bRecord) {
if (!_bInitialized) {
_bInitialized = TRUE;
SetSpeed(1.0f);
_fStartTime = _pTimer->CurrentTick();
}
FLOATmatrix3D m;
MakeRotationMatrixFast(m, _cp.cp_aRot);
FLOAT3D vX, vY, vZ;
vX(1) = m(1,1); vX(2) = m(2,1); vX(3) = m(3,1);
vY(1) = m(1,2); vY(2) = m(2,2); vY(3) = m(3,2);
vZ(1) = m(1,3); vZ(2) = m(2,3); vZ(3) = m(3,3);
_cp.cp_aRot(1)-=_pInput->GetAxisValue(MOUSE_X_AXIS)*0.5f;
_cp.cp_aRot(2)-=_pInput->GetAxisValue(MOUSE_Y_AXIS)*0.5f;
if( cam_bMoveForward) { _cp.cp_vPos -= vZ *cam_fSpeed; };
if( cam_bMoveBackward) { _cp.cp_vPos += vZ *cam_fSpeed; };
if( cam_bMoveLeft) { _cp.cp_vPos -= vX *cam_fSpeed; };
if( cam_bMoveRight) { _cp.cp_vPos += vX *cam_fSpeed; };
if( cam_bMoveUp) { _cp.cp_vPos += vY *cam_fSpeed; };
if( cam_bMoveDown) { _cp.cp_vPos -= vY *cam_fSpeed; };
if( cam_bTurnBankingLeft) { _cp.cp_aRot(3) += 10.0f; };
if( cam_bTurnBankingRight) { _cp.cp_aRot(3) -= 10.0f; };
if( cam_bZoomIn) { _cp.cp_aFOV -= 1.0f; };
if( cam_bZoomOut) { _cp.cp_aFOV += 1.0f; };
if( cam_bZoomDefault) { _cp.cp_aFOV = 90.0f; };
Clamp( _cp.cp_aFOV, 10.0f, 150.0f);
if( cam_bResetToPlayer) {
_cp.cp_vPos = pen->GetPlacement().pl_PositionVector;
_cp.cp_aRot = pen->GetPlacement().pl_OrientationAngle;
}
if( cam_bSnapshot) {
cam_bSnapshot = FALSE;
WritePos(_cp);
}
} else {
if (!_bInitialized) {
_bInitialized = TRUE;
ReadPos(_cp0);
ReadPos(_cp1);
SetSpeed(_cp0.cp_fSpeed);
_fStartTime = _pTimer->CurrentTick();
}
TIME tmNow = _pTimer->GetLerpedCurrentTick()-_fStartTime;
if (tmNow>_cp1.cp_tmTick) {
_cp0 = _cp1;
ReadPos(_cp1);
SetSpeed(_cp0.cp_fSpeed);
}
FLOAT fRatio = (tmNow-_cp0.cp_tmTick)/(_cp1.cp_tmTick-_cp0.cp_tmTick);
_cp.cp_vPos = Lerp(_cp0.cp_vPos, _cp1.cp_vPos, fRatio);
_cp.cp_aRot = Lerp(_cp0.cp_aRot, _cp1.cp_aRot, fRatio);
_cp.cp_aFOV = Lerp(_cp0.cp_aFOV, _cp1.cp_aFOV, fRatio);
}
CPlacement3D plCamera;
plCamera.pl_PositionVector = _cp.cp_vPos;
plCamera.pl_OrientationAngle = _cp.cp_aRot;
// init projection parameters
CPerspectiveProjection3D prPerspectiveProjection;
prPerspectiveProjection.FOVL() = _cp.cp_aFOV;
prPerspectiveProjection.ScreenBBoxL() = FLOATaabbox2D(
FLOAT2D(0.0f, 0.0f), FLOAT2D((float)pdp->GetWidth(), (float)pdp->GetHeight())
);
prPerspectiveProjection.AspectRatioL() = 1.0f;
prPerspectiveProjection.FrontClipDistanceL() = 0.3f;
CAnyProjection3D prProjection;
prProjection = prPerspectiveProjection;
// set up viewer position
prProjection->ViewerPlacementL() = plCamera;
// render the view
RenderView(*pen->en_pwoWorld, *(CEntity*)NULL, prProjection, *pdp);
}