Merged mirrors with portals; Render part of mirrors done, render part of portals needs further testing
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ZZYZX
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662345adb8
commit
cd39c4b8a6
15 changed files with 349 additions and 124 deletions
163
src/r_main.cpp
163
src/r_main.cpp
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@ -57,6 +57,7 @@
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#include "v_font.h"
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#include "r_data/colormaps.h"
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#include "farchive.h"
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#include "portal.h"
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// MACROS ------------------------------------------------------------------
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@ -608,52 +609,91 @@ void R_SetupFreelook()
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//==========================================================================
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//
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// R_EnterMirror
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// R_EnterPortal
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//
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// [RH] Draw the reflection inside a mirror
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// [ZZ] Merged with portal code, originally called R_EnterMirror
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//
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//==========================================================================
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void R_EnterMirror (drawseg_t *ds, int depth)
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void R_EnterPortal (PortalDrawseg* pds, int depth)
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{
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// [ZZ] check depth. fill portal with black if it's exceeding the visual recursion limit, and continue like nothing happened.
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if (depth > 4)
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{
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BYTE color = (BYTE)BestColor((DWORD *)GPalette.BaseColors, 0, 0, 0, 0, 255);
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int spacing = RenderTarget->GetPitch();
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for (int x = pds->x1; x <= pds->x2; x++)
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{
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int Ytop = pds->ceilingclip[x-pds->x1];
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int Ybottom = pds->floorclip[x-pds->x1];
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BYTE *dest = RenderTarget->GetBuffer() + x + Ytop * spacing;
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if (Ytop < 0) Ytop = 0;
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if (Ybottom >= RenderTarget->GetHeight())
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Ybottom = RenderTarget->GetHeight()-1;
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for (int y = Ytop; y <= Ybottom; y++)
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{
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*dest = color;
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dest += spacing;
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}
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}
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return;
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}
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angle_t startang = viewangle;
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fixed_t startx = viewx;
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fixed_t starty = viewy;
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CurrentMirror++;
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int prevuniq = CurrentPortalUniq;
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CurrentPortalUniq++;
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unsigned int mirrorsAtStart = WallMirrors.Size ();
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unsigned int portalsAtStart = WallPortals.Size ();
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vertex_t *v1 = ds->curline->v1;
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if (pds->mirror)
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{
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//vertex_t *v1 = ds->curline->v1;
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vertex_t *v1 = pds->src->v1;
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// Reflect the current view behind the mirror.
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if (pds->src->dx == 0)
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{ // vertical mirror
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viewx = v1->x - startx + v1->x;
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}
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else if (pds->src->dy == 0)
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{ // horizontal mirror
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viewy = v1->y - starty + v1->y;
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}
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else
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{ // any mirror--use floats to avoid integer overflow
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vertex_t *v2 = pds->src->v2;
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float dx = FIXED2FLOAT(v2->x - v1->x);
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float dy = FIXED2FLOAT(v2->y - v1->y);
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float x1 = FIXED2FLOAT(v1->x);
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float y1 = FIXED2FLOAT(v1->y);
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float x = FIXED2FLOAT(startx);
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float y = FIXED2FLOAT(starty);
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// the above two cases catch len == 0
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float r = ((x - x1)*dx + (y - y1)*dy) / (dx*dx + dy*dy);
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viewx = FLOAT2FIXED((x1 + r * dx)*2 - x);
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viewy = FLOAT2FIXED((y1 + r * dy)*2 - y);
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}
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viewangle = 2*R_PointToAngle2 (pds->src->v1->x, pds->src->v1->y,
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pds->src->v2->x, pds->src->v2->y) - startang;
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// Reflect the current view behind the mirror.
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if (ds->curline->linedef->dx == 0)
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{ // vertical mirror
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viewx = v1->x - startx + v1->x;
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}
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else if (ds->curline->linedef->dy == 0)
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{ // horizontal mirror
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viewy = v1->y - starty + v1->y;
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}
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else
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{ // any mirror--use floats to avoid integer overflow
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vertex_t *v2 = ds->curline->v2;
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float dx = FIXED2FLOAT(v2->x - v1->x);
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float dy = FIXED2FLOAT(v2->y - v1->y);
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float x1 = FIXED2FLOAT(v1->x);
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float y1 = FIXED2FLOAT(v1->y);
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float x = FIXED2FLOAT(startx);
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float y = FIXED2FLOAT(starty);
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// the above two cases catch len == 0
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float r = ((x - x1)*dx + (y - y1)*dy) / (dx*dx + dy*dy);
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viewx = FLOAT2FIXED((x1 + r * dx)*2 - x);
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viewy = FLOAT2FIXED((y1 + r * dy)*2 - y);
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{
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P_TranslatePortalXY(pds->src, pds->dst, viewx, viewy);
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P_TranslatePortalZ(pds->src, pds->dst, viewz);
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P_TranslatePortalAngle(pds->src, pds->dst, viewangle);
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}
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viewangle = 2*R_PointToAngle2 (ds->curline->v1->x, ds->curline->v1->y,
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ds->curline->v2->x, ds->curline->v2->y) - startang;
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viewsin = finesine[viewangle>>ANGLETOFINESHIFT];
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viewcos = finecosine[viewangle>>ANGLETOFINESHIFT];
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@ -664,35 +704,57 @@ void R_EnterMirror (drawseg_t *ds, int depth)
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R_CopyStackedViewParameters();
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validcount++;
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ActiveWallMirror = ds->curline;
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PortalDrawseg* prevpds = CurrentPortal;
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CurrentPortal = pds;
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R_ClearPlanes (false);
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R_ClearClipSegs (ds->x1, ds->x2 + 1);
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R_ClearClipSegs (pds->x1, pds->x2 + 1); // todo: check if this "+1" is actually needed
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memcpy (ceilingclip + ds->x1, openings + ds->sprtopclip, (ds->x2 - ds->x1 + 1)*sizeof(*ceilingclip));
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memcpy (floorclip + ds->x1, openings + ds->sprbottomclip, (ds->x2 - ds->x1 + 1)*sizeof(*floorclip));
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// some portals have height differences, account for this here
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R_3D_EnterSkybox(); // push 3D floor height map
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WindowLeft = ds->x1;
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WindowRight = ds->x2;
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MirrorFlags = (depth + 1) & 1;
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memcpy (ceilingclip + pds->x1, &pds->ceilingclip[0], pds->ceilingclip.Size()*sizeof(*ceilingclip));
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memcpy (floorclip + pds->x1, &pds->floorclip[0], pds->floorclip.Size()*sizeof(*floorclip));
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WindowLeft = pds->x1;
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WindowRight = pds->x2;
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// RF_XFLIP should be removed before calling the root function
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int prevmf = MirrorFlags;
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if (pds->mirror)
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{
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if (MirrorFlags & RF_XFLIP)
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MirrorFlags &= ~RF_XFLIP;
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else MirrorFlags |= RF_XFLIP;
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}
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R_RenderBSPNode (nodes + numnodes - 1);
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R_3D_ResetClip(); // reset clips (floor/ceiling)
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PlaneCycles.Clock();
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R_DrawPlanes ();
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R_DrawSkyBoxes ();
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PlaneCycles.Unclock();
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// Allow up to 4 recursions through a mirror
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if (depth < 4)
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// depth check is in another place right now
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unsigned int portalsAtEnd = WallPortals.Size ();
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for (; portalsAtStart < portalsAtEnd; portalsAtStart++)
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{
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unsigned int mirrorsAtEnd = WallMirrors.Size ();
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for (; mirrorsAtStart < mirrorsAtEnd; mirrorsAtStart++)
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{
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R_EnterMirror (drawsegs + WallMirrors[mirrorsAtStart], depth + 1);
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}
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R_EnterPortal (&WallPortals[portalsAtStart], depth + 1);
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}
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NetUpdate();
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MaskedCycles.Clock(); // [ZZ] count sprites in portals/mirrors along with normal ones.
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R_DrawMasked (); // this is required since with portals there often will be cases when more than 80% of the view is inside a portal.
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MaskedCycles.Unclock();
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NetUpdate();
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R_3D_LeaveSkybox(); // pop 3D floor height map
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CurrentPortal = prevpds;
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MirrorFlags = prevmf;
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CurrentPortalUniq = prevuniq;
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viewangle = startang;
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viewx = startx;
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viewy = starty;
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@ -779,7 +841,7 @@ void R_RenderActorView (AActor *actor, bool dontmaplines)
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WindowLeft = 0;
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WindowRight = viewwidth - 1;
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MirrorFlags = 0;
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ActiveWallMirror = NULL;
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CurrentPortal = NULL;
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r_dontmaplines = dontmaplines;
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@ -813,10 +875,11 @@ void R_RenderActorView (AActor *actor, bool dontmaplines)
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PlaneCycles.Unclock();
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// [RH] Walk through mirrors
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size_t lastmirror = WallMirrors.Size ();
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for (unsigned int i = 0; i < lastmirror; i++)
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// [ZZ] Merged with portals
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size_t lastportal = WallPortals.Size();
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for (unsigned int i = 0; i < lastportal; i++)
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{
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R_EnterMirror (drawsegs + WallMirrors[i], 0);
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R_EnterPortal(&WallPortals[i], 0);
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}
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NetUpdate ();
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@ -827,7 +890,7 @@ void R_RenderActorView (AActor *actor, bool dontmaplines)
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NetUpdate ();
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}
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WallMirrors.Clear ();
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WallPortals.Clear ();
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interpolator.RestoreInterpolations ();
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R_SetupBuffer ();
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