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- Fix texture coordinates for sloped walls

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This commit is contained in:
Magnus Norddahl 2017-05-06 18:44:06 +02:00
parent 996ce4497d
commit 9011f0ed5b
2 changed files with 34 additions and 37 deletions
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63
src/polyrenderer/scene/poly_wall.cpp
View file

@ -82,18 +82,16 @@ bool RenderPolyWall::RenderLine(const TriMatrix &worldToClip, const PolyClipPlan
double frontfloorz1 = frontsector->floorplane.ZatPoint(line->v1); double frontfloorz1 = frontsector->floorplane.ZatPoint(line->v1);
double frontceilz2 = frontsector->ceilingplane.ZatPoint(line->v2); double frontceilz2 = frontsector->ceilingplane.ZatPoint(line->v2);
double frontfloorz2 = frontsector->floorplane.ZatPoint(line->v2); double frontfloorz2 = frontsector->floorplane.ZatPoint(line->v2);
double topTexZ = frontsector->GetPlaneTexZ(sector_t::ceiling);
double bottomTexZ = frontsector->GetPlaneTexZ(sector_t::floor);
if (line->backsector == nullptr) if (line->backsector == nullptr)
{ {
if (line->sidedef) if (line->sidedef)
{ {
wall.SetCoords(line->v1->fPos(), line->v2->fPos(), frontceilz1, frontfloorz1, frontceilz2, frontfloorz2); wall.SetCoords(line->v1->fPos(), line->v2->fPos(), frontceilz1, frontfloorz1, frontceilz2, frontfloorz2);
wall.TopZ1 = frontceilz1; wall.TopTexZ = topTexZ;
wall.TopZ2 = frontceilz2; wall.BottomTexZ = bottomTexZ;
wall.BottomZ1 = frontfloorz1;
wall.BottomZ2 = frontfloorz2;
wall.UnpeggedCeil1 = frontceilz1;
wall.UnpeggedCeil2 = frontceilz2;
wall.Texpart = side_t::mid; wall.Texpart = side_t::mid;
wall.Polyportal = polyportal; wall.Polyportal = polyportal;
wall.Render(worldToClip, clipPlane, cull); wall.Render(worldToClip, clipPlane, cull);
@ -128,12 +126,8 @@ bool RenderPolyWall::RenderLine(const TriMatrix &worldToClip, const PolyClipPlan
if ((topceilz1 > topfloorz1 || topceilz2 > topfloorz2) && line->sidedef && !bothSkyCeiling) if ((topceilz1 > topfloorz1 || topceilz2 > topfloorz2) && line->sidedef && !bothSkyCeiling)
{ {
wall.SetCoords(line->v1->fPos(), line->v2->fPos(), topceilz1, topfloorz1, topceilz2, topfloorz2); wall.SetCoords(line->v1->fPos(), line->v2->fPos(), topceilz1, topfloorz1, topceilz2, topfloorz2);
wall.TopZ1 = topceilz1; wall.TopTexZ = topTexZ;
wall.TopZ2 = topceilz2; wall.BottomTexZ = MIN(topfloorz1, topfloorz2);
wall.BottomZ1 = topfloorz1;
wall.BottomZ2 = topfloorz2;
wall.UnpeggedCeil1 = topceilz1;
wall.UnpeggedCeil2 = topceilz2;
wall.Texpart = side_t::top; wall.Texpart = side_t::top;
wall.Render(worldToClip, clipPlane, cull); wall.Render(worldToClip, clipPlane, cull);
} }
@ -141,10 +135,8 @@ bool RenderPolyWall::RenderLine(const TriMatrix &worldToClip, const PolyClipPlan
if ((bottomfloorz1 < bottomceilz1 || bottomfloorz2 < bottomceilz2) && line->sidedef && !bothSkyFloor) if ((bottomfloorz1 < bottomceilz1 || bottomfloorz2 < bottomceilz2) && line->sidedef && !bothSkyFloor)
{ {
wall.SetCoords(line->v1->fPos(), line->v2->fPos(), bottomceilz1, bottomfloorz1, bottomceilz2, bottomfloorz2); wall.SetCoords(line->v1->fPos(), line->v2->fPos(), bottomceilz1, bottomfloorz1, bottomceilz2, bottomfloorz2);
wall.TopZ1 = bottomceilz1; wall.TopTexZ = MAX(bottomceilz1, bottomceilz2);
wall.TopZ2 = bottomceilz2; wall.BottomTexZ = bottomTexZ;
wall.BottomZ1 = bottomfloorz1;
wall.BottomZ2 = bottomfloorz2;
wall.UnpeggedCeil1 = topceilz1; wall.UnpeggedCeil1 = topceilz1;
wall.UnpeggedCeil2 = topceilz2; wall.UnpeggedCeil2 = topceilz2;
wall.Texpart = side_t::bottom; wall.Texpart = side_t::bottom;
@ -154,12 +146,8 @@ bool RenderPolyWall::RenderLine(const TriMatrix &worldToClip, const PolyClipPlan
if (line->sidedef) if (line->sidedef)
{ {
wall.SetCoords(line->v1->fPos(), line->v2->fPos(), middleceilz1, middlefloorz1, middleceilz2, middlefloorz2); wall.SetCoords(line->v1->fPos(), line->v2->fPos(), middleceilz1, middlefloorz1, middleceilz2, middlefloorz2);
wall.TopZ1 = middleceilz1; wall.TopTexZ = MAX(middleceilz1, middleceilz2);
wall.TopZ2 = middleceilz2; wall.BottomTexZ = MIN(middlefloorz1, middlefloorz2);
wall.BottomZ1 = middlefloorz1;
wall.BottomZ2 = middlefloorz2;
wall.UnpeggedCeil1 = topceilz1;
wall.UnpeggedCeil2 = topceilz2;
wall.Texpart = side_t::mid; wall.Texpart = side_t::mid;
wall.Masked = true; wall.Masked = true;
@ -183,6 +171,8 @@ void RenderPolyWall::Render3DFloorLine(const TriMatrix &worldToClip, const PolyC
double frontfloorz1 = fakeFloor->bottom.plane->ZatPoint(line->v1); double frontfloorz1 = fakeFloor->bottom.plane->ZatPoint(line->v1);
double frontceilz2 = fakeFloor->top.plane->ZatPoint(line->v2); double frontceilz2 = fakeFloor->top.plane->ZatPoint(line->v2);
double frontfloorz2 = fakeFloor->bottom.plane->ZatPoint(line->v2); double frontfloorz2 = fakeFloor->bottom.plane->ZatPoint(line->v2);
double topTexZ = frontsector->GetPlaneTexZ(sector_t::ceiling);
double bottomTexZ = frontsector->GetPlaneTexZ(sector_t::floor);
RenderPolyWall wall; RenderPolyWall wall;
wall.LineSeg = line; wall.LineSeg = line;
@ -193,10 +183,8 @@ void RenderPolyWall::Render3DFloorLine(const TriMatrix &worldToClip, const PolyC
wall.SubsectorDepth = subsectorDepth; wall.SubsectorDepth = subsectorDepth;
wall.StencilValue = stencilValue; wall.StencilValue = stencilValue;
wall.SetCoords(line->v1->fPos(), line->v2->fPos(), frontceilz1, frontfloorz1, frontceilz2, frontfloorz2); wall.SetCoords(line->v1->fPos(), line->v2->fPos(), frontceilz1, frontfloorz1, frontceilz2, frontfloorz2);
wall.TopZ1 = frontceilz1; wall.TopTexZ = topTexZ;
wall.TopZ2 = frontceilz2; wall.BottomTexZ = bottomTexZ;
wall.BottomZ1 = frontfloorz1;
wall.BottomZ2 = frontfloorz2;
wall.UnpeggedCeil1 = frontceilz1; wall.UnpeggedCeil1 = frontceilz1;
wall.UnpeggedCeil2 = frontceilz2; wall.UnpeggedCeil2 = frontceilz2;
wall.Texpart = side_t::mid; wall.Texpart = side_t::mid;
@ -245,8 +233,8 @@ void RenderPolyWall::Render(const TriMatrix &worldToClip, const PolyClipPlane &c
if (tex) if (tex)
{ {
PolyWallTextureCoordsU texcoordsU(tex, LineSeg, Line, Side, Texpart); PolyWallTextureCoordsU texcoordsU(tex, LineSeg, Line, Side, Texpart);
PolyWallTextureCoordsV texcoordsVLeft(tex, Line, Side, Texpart, TopZ1, BottomZ1, UnpeggedCeil1); PolyWallTextureCoordsV texcoordsVLeft(tex, Line, Side, Texpart, ceil1, floor1, UnpeggedCeil1, TopTexZ, BottomTexZ);
PolyWallTextureCoordsV texcoordsVRght(tex, Line, Side, Texpart, TopZ2, BottomZ2, UnpeggedCeil2); PolyWallTextureCoordsV texcoordsVRght(tex, Line, Side, Texpart, ceil2, floor2, UnpeggedCeil2, TopTexZ, BottomTexZ);
vertices[0].u = (float)texcoordsU.u1; vertices[0].u = (float)texcoordsU.u1;
vertices[0].v = (float)texcoordsVLeft.v1; vertices[0].v = (float)texcoordsVLeft.v1;
vertices[1].u = (float)texcoordsU.u2; vertices[1].u = (float)texcoordsU.u2;
@ -397,7 +385,7 @@ PolyWallTextureCoordsU::PolyWallTextureCoordsU(FTexture *tex, const seg_t *lines
///////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////////
PolyWallTextureCoordsV::PolyWallTextureCoordsV(FTexture *tex, const line_t *line, const side_t *side, side_t::ETexpart texpart, double topz, double bottomz, double unpeggedceil) PolyWallTextureCoordsV::PolyWallTextureCoordsV(FTexture *tex, const line_t *line, const side_t *side, side_t::ETexpart texpart, double topz, double bottomz, double unpeggedceil, double topTexZ, double bottomTexZ)
{ {
double vscale = side->GetTextureYScale(texpart) * tex->Scale.Y; double vscale = side->GetTextureYScale(texpart) * tex->Scale.Y;
@ -409,19 +397,30 @@ PolyWallTextureCoordsV::PolyWallTextureCoordsV(FTexture *tex, const line_t *line
{ {
default: default:
case side_t::mid: case side_t::mid:
CalcVMidPart(tex, line, side, topz, bottomz, vscale, yoffset); CalcVMidPart(tex, line, side, topTexZ, bottomTexZ, vscale, yoffset);
break; break;
case side_t::top: case side_t::top:
CalcVTopPart(tex, line, side, topz, bottomz, vscale, yoffset); CalcVTopPart(tex, line, side, topTexZ, bottomTexZ, vscale, yoffset);
break; break;
case side_t::bottom: case side_t::bottom:
CalcVBottomPart(tex, line, side, topz, bottomz, unpeggedceil, vscale, yoffset); CalcVBottomPart(tex, line, side, topTexZ, bottomTexZ, unpeggedceil, vscale, yoffset);
break; break;
} }
int texHeight = tex->GetHeight(); int texHeight = tex->GetHeight();
v1 /= texHeight; v1 /= texHeight;
v2 /= texHeight; v2 /= texHeight;
double texZHeight = (bottomTexZ - topTexZ);
if (texZHeight > 0.0f || texZHeight < -0.0f)
{
double t1 = (topz - topTexZ) / texZHeight;
double t2 = (bottomz - topTexZ) / texZHeight;
double vorig1 = v1;
double vorig2 = v2;
v1 = vorig1 * (1.0f - t1) + vorig2 * t1;
v2 = vorig1 * (1.0f - t2) + vorig2 * t2;
}
} }
void PolyWallTextureCoordsV::CalcVTopPart(FTexture *tex, const line_t *line, const side_t *side, double topz, double bottomz, double vscale, double yoffset) void PolyWallTextureCoordsV::CalcVTopPart(FTexture *tex, const line_t *line, const side_t *side, double topz, double bottomz, double vscale, double yoffset)

8
src/polyrenderer/scene/poly_wall.h
View file

@ -48,10 +48,8 @@ public:
const line_t *Line = nullptr; const line_t *Line = nullptr;
const side_t *Side = nullptr; const side_t *Side = nullptr;
side_t::ETexpart Texpart = side_t::mid; side_t::ETexpart Texpart = side_t::mid;
double TopZ1 = 0.0; double TopTexZ = 0.0;
double TopZ2 = 0.0; double BottomTexZ = 0.0;
double BottomZ1 = 0.0;
double BottomZ2 = 0.0;
double UnpeggedCeil1 = 0.0; double UnpeggedCeil1 = 0.0;
double UnpeggedCeil2 = 0.0; double UnpeggedCeil2 = 0.0;
FSWColormap *Colormap = nullptr; FSWColormap *Colormap = nullptr;
@ -77,7 +75,7 @@ public:
class PolyWallTextureCoordsV class PolyWallTextureCoordsV
{ {
public: public:
PolyWallTextureCoordsV(FTexture *tex, const line_t *line, const side_t *side, side_t::ETexpart texpart, double topz, double bottomz, double unpeggedceil); PolyWallTextureCoordsV(FTexture *tex, const line_t *line, const side_t *side, side_t::ETexpart texpart, double topz, double bottomz, double unpeggedceil, double topTexZ, double bottomTexZ);
double v1, v2; double v1, v2;