//-----------------------------------------------------------------------------
//
// GLSectorStackPortal::DrawContents
//
//-----------------------------------------------------------------------------
bool HWSectorStackPortal::Setup(HWDrawInfo *di, FRenderState &rstate, Clipper *clipper)
{
auto state = mState;
FSectorPortalGroup *portal = origin;
auto &vp = di->Viewpoint;
vp.Pos += origin->mDisplacement;
vp.ActorPos += origin->mDisplacement;
vp.ViewActor = nullptr;
// avoid recursions!
if (origin->plane != -1) screen->instack[origin->plane]++;
di->SetupView(rstate, vp.Pos.X, vp.Pos.Y, vp.Pos.Z, !!(state->MirrorFlag & 1), !!(state->PlaneMirrorFlag & 1));
SetupCoverage(di);
ClearClipper(di, clipper);
// If the viewpoint is not within the portal, we need to invalidate the entire clip area.
// The portal will re-validate the necessary parts when its subsectors get traversed.
subsector_t *sub = di->Level->PointInRenderSubsector(vp.Pos);
if (!(di->ss_renderflags[sub->Index()] & SSRF_SEEN))
{
clipper->SafeAddClipRange(0, ANGLE_MAX);
clipper->SetBlocked(true);
}
return true;
}
//-----------------------------------------------------------------------------
//
// GLSectorStackPortal::DrawContents
//
//-----------------------------------------------------------------------------
void GLSectorStackPortal::DrawContents()
{
FPortal *portal = origin;
ViewPos += origin->mDisplacement;
GLRenderer->mViewActor = NULL;
// avoid recursions!
if (origin->plane != -1) instack[origin->plane]++;
GLRenderer->SetupView(ViewPos.X, ViewPos.Y, ViewPos.Z, ViewAngle, !!(MirrorFlag&1), !!(PlaneMirrorFlag&1));
SaveMapSection();
SetupCoverage();
ClearClipper();
// If the viewpoint is not within the portal, we need to invalidate the entire clip area.
// The portal will re-validate the necessary parts when its subsectors get traversed.
subsector_t *sub = R_PointInSubsector(ViewPos);
if (!(gl_drawinfo->ss_renderflags[sub - ::subsectors] & SSRF_SEEN))
{
clipper.SafeAddClipRange(0, ANGLE_MAX);
clipper.SetBlocked(true);
}
GLRenderer->DrawScene(DM_PORTAL);
RestoreMapSection();
if (origin->plane != -1) instack[origin->plane]--;
}
//-----------------------------------------------------------------------------
//
// GLSectorStackPortal::DrawContents
//
//-----------------------------------------------------------------------------
void GLSectorStackPortal::DrawContents()
{
FPortal *portal = origin;
viewx += origin->xDisplacement;
viewy += origin->yDisplacement;
GLRenderer->mViewActor = NULL;
GLRenderer->mCurrentPortal = this;
validcount++;
// avoid recursions!
if (origin->plane != -1) instack[origin->plane]++;
GLRenderer->SetupView(viewx, viewy, viewz, viewangle, !!(MirrorFlag&1), !!(PlaneMirrorFlag&1));
SaveMapSection();
SetupCoverage();
ClearClipper();
GLRenderer->DrawScene();
RestoreMapSection();
if (origin->plane != -1) instack[origin->plane]--;
}