// set modelview matrix if not already set
void CRenderModel::SetModelView(void)
{
_pfModelProfile.StartTimer( CModelProfile::PTI_VIEW_SETMODELVIEW);
_pfModelProfile.IncrementTimerAveragingCounter( CModelProfile::PTI_VIEW_SETMODELVIEW);
// adjust clipping to frustum
if( rm_ulFlags & RMF_INSIDE) gfxDisableClipping();
else gfxEnableClipping();
// adjust clipping to mirror-plane (if any)
extern INDEX gap_iOptimizeClipping;
if( gap_iOptimizeClipping>0 && (_aprProjection->pr_bMirror || _aprProjection->pr_bWarp)) {
if( rm_ulFlags & RMF_INMIRROR) gfxDisableClipPlane();
else gfxEnableClipPlane();
}
// make transform matrix
const FLOATmatrix3D &m = rm_mObjectToView;
const FLOAT3D &v = rm_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);
// all done
_pfModelProfile.StopTimer( CModelProfile::PTI_VIEW_SETMODELVIEW);
}
// 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 DOUBLE TrisTroughputPass(INDEX ct)
{
if( !_pdp->Lock()) {
ASSERT(FALSE);
return 0.0;
}
StartTimer();
gfxSetFrustum( -0.5f, +0.5f, -0.5f, +0.5f, 0.5f, 2.0f);
gfxSetViewMatrix(NULL);
gfxCullFace(GFX_NONE);
_pdp->Fill(C_GRAY|255);
_pdp->FillZBuffer(1.0f);
if(_bTexture) {
gfxEnableTexture();
} else {
gfxDisableTexture();
}
if(_bBlend) {
gfxEnableBlend();
gfxBlendFunc( GFX_ONE, GFX_ONE);
} else {
gfxDisableBlend();
}
if(_bDepth) {
gfxEnableDepthTest();
gfxEnableDepthWrite();
} else {
gfxDisableDepthTest();
gfxDisableDepthWrite();
}
gfxDisableAlphaTest();
gfxSetVertexArray( &_avtx[0], _avtx.Count());
gfxLockArrays();
gfxSetTexCoordArray( &_atex[0], FALSE);
gfxSetColorArray( &_acol[0]);
if(_bMultiTexture) {
gfxSetTextureUnit(1);
gfxEnableTexture();
gfxSetTexture( _ulTexObject, _tpLocal);
gfxSetTexCoordArray( &_atex[0], FALSE);
gfxSetTextureUnit(0);
}
for( INDEX i=0; i<ct; i++) gfxDrawElements( _aiElements.Count(), &_aiElements[0]);
gfxUnlockArrays();
if(_bMultiTexture) {
gfxSetTextureUnit(1);
gfxDisableTexture();
gfxSetTextureUnit(0);
}
_pdp->Unlock();
gfxFinish();
_pvp->SwapBuffers();
return StopTimer();
}
