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CalcMissed.pas
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CalcMissed.pas
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unit CalcMissed;
interface
uses
Classes, Math3D, TypeDefinitions;
type
TCalcMissed = class
private
{ Private-Deklarationen }
Iteration3D: TIteration3D;
VgradsFOV: TMatrix3;
procedure CalculateVgradsFOV(ix: Integer);
procedure CalculateNormals(DEstop: Double; var NN, R: Double; mPsiLight: TPsiLight5);
procedure maxLengthToCutPlane(var dLength: Double; var itmp: Integer; vPos: TPPos3D);
// procedure HSminLengthToCutPlane(var dLength: Double; vPos: TPPos3D);
procedure CalculateNormalsOnDE(DEstop: Double; var NN, R: Double; mPsiLight: TPsiLight5);
public
{ Public-Deklarationen }
MCTparas: TMCTparameter;
CMXpos, CMYpos: Integer;
procedure CalcMissed(n: Integer);
end;
var
cCalcMissed: TCalcMissed;
implementation
uses Mand, Math, LightAdjust, DivUtils, formulas, Forms, ImageProcess, CustomFormulas;
procedure TCalcMissed.maxLengthToCutPlane(var dLength: Double; var itmp: Integer; vPos: TPPos3D);
var dTmp: Double;
begin
with MCTparas do
begin
if iCutOptions > 0 then
begin
dLength := 0;
if ((iCutOptions and 1) > 0) and (Abs(VgradsFOV[2, 0]) > 1e-20) then
begin
dTmp := (dCOX - vPos^[0]) / VgradsFOV[2, 0];
if dTmp > dLength then
begin
dLength := dTmp;
itmp := 1;
end;
end;
if ((iCutOptions and 2) > 0) and (Abs(VgradsFOV[2, 1]) > 1e-20) then
begin
dTmp := (dCOY - vPos^[1]) / VgradsFOV[2, 1];
if dTmp > dLength then
begin
dLength := dTmp;
itmp := 2;
end;
end;
if ((iCutOptions and 4) > 0) and (Abs(VgradsFOV[2, 2]) > 1e-20) then
begin
dTmp := (dCOZ - vPos^[2]) / VgradsFOV[2, 2];
if dTmp > dLength then
begin
dLength := dTmp;
itmp := 3;
end;
end;
end;
end;
end;
{procedure TCalcMissed.HSminLengthToCutPlane(var dLength: Double; vPos: TPPos3D);
var dTmp: Double;
begin
with MCTparas do
begin
if iCutOptions > 0 then
begin
dLength := 1e40;
if ((iCutOptions and 1) > 0) and (Abs(HSvecs[0][0]) > 1e-20) then
begin
dTmp := (vPos^[0] - dCOX) / HSvecs[0][0];
if (dTmp > 0) and (dTmp < dLength) then dLength := dTmp;
end;
if ((iCutOptions and 2) > 0) and (Abs(HSvecs[0][1]) > 1e-20) then
begin
dTmp := (vPos^[1] - dCOY) / HSvecs[0][1];
if (dTmp > 0) and (dTmp < dLength) then dLength := dTmp;
end;
if ((iCutOptions and 4) > 0) and (Abs(HSvecs[0][2]) > 1e-20) then
begin
dTmp := (vPos^[2] - dCOZ) / HSvecs[0][2];
if (dTmp > 0) and (dTmp < dLength) then dLength := dTmp;
end;
end;
end;
end; }
procedure TCalcMissed.CalculateNormals(DEstop: Double; var NN, R: Double; mPsiLight: TPsiLight5);
var CT1: TVec3D;
dT2, StepSNorm, dM, dS, dSG, N3, N2, N1, NN2, NN1, Noffset: Double;
itmp, SmoothN: Integer;
V: TVec3D;
M{, MAFOV}: TMatrix3;
bN3neg: LongBool;
begin
with MCTparas do
begin
{ N1 := -CAFY; //antiFOV is not working, use absolute values + FOV on calcpixelcol, spec = Normals * (LightVec + ViewVecFOV)
N2 := -CAFX;
BuildRotMatrixFOV(N1, N2, @MAFOV);
Multiply2Matrix(@MAFOV, @Vgrads); }
Noffset := Min(DEstop * 0.5 / msDEStop, DEstop * 0.15);
Iteration3D.CalcSIT := True;
mCopyVec(@CT1, @Iteration3D.C1);
mMandFunction(@Iteration3D);
NN := Iteration3D.SmoothItD;
// Iteration3D.C3 := Iteration3D.C3 + StepWidth * 0.1; Absolute normals
mAddVecWeight(@Iteration3D.C1, @Vgrads[2, 0], -Noffset);
mMandFunction(@Iteration3D);
N3 := NN - Iteration3D.SmoothItD;// - NN; //Zgradient
// mCopyVec(@Iteration3D.C1, @CT1);
// Iteration3D.C1 := Iteration3D.C1 + StepWidth * 0.1;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[0, 0], Noffset);
mMandFunction(@Iteration3D);
N1 := NN - Iteration3D.SmoothItD; //Xgradient
// mCopyVec(@Iteration3D.C1, @CT1);
// Iteration3D.C2 := Iteration3D.C2 + StepWidth * 0.1;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[1, 0], Noffset);
mMandFunction(@Iteration3D);
N2 := NN - Iteration3D.SmoothItD; //Ygradient
if iSmNormals > 0 then //smoothed with estimation of roughness, eg deviation from mid val
begin // -> only 3 directions is not very good, more deviation if direct in DE direction to bulb
Iteration3D.maxIt := Iteration3D.ItResultI + 2;
Noffset := Noffset * 2;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[0, 0], -Noffset); //smooth mid point
mMandFunction(@Iteration3D);
NN := NN + Iteration3D.SmoothItD;
mAddVecWeight(@Iteration3D.C1, @Vgrads[0, 0], 2 * Noffset);
mMandFunction(@Iteration3D);
NN := NN + Iteration3D.SmoothItD;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[1, 0], -Noffset);
mMandFunction(@Iteration3D);
NN := NN + Iteration3D.SmoothItD;
mAddVecWeight(@Iteration3D.C1, @Vgrads[1, 0], 2 * Noffset);
mMandFunction(@Iteration3D);
NN := (NN + Iteration3D.SmoothItD) * 0.2;
SmoothN := iSmNormals;
StepSNorm := DEstop / ((SmoothN + 0.5) * msDEStop);
dM := SmoothN * 2;
bN3neg := N3 < 0;
if bN3neg then dS := -ArcTan2(N1, N3 - 1e-15) else dS := -ArcTan2(N1, N3 + 1e-15);
// dS := -ArcSin(N1 / Sqrt(N1 * N1 + N3 * N3 + 1e-15));
CopyVec(@V, @Vgrads[0]);
BuildRotMatrixY(dS, @M); //rotate dX on yaxis
RotateVector(@V, @M);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * StepSNorm);
NN1 := 0;
dS := 0;
for itmp := -SmoothN to SmoothN do
begin
if itmp <> 0 then
begin
mMandFunction(@Iteration3D);
dT2 := (NN - Iteration3D.SmoothItD) / itmp;
NN1 := NN1 + dT2;
dS := dS + Sqr(dT2);
end;
mAddVecWeight(@Iteration3D.C1, @V, StepSNorm);
end;
dSG := dS * dM - Sqr(NN1);
if bN3neg then dS := ArcTan2(N2, N3 - 1e-15) else dS := ArcTan2(N2, N3 + 1e-15);
// dS := ArcSin(N2 / Sqrt(N2 * N2 + N3 * N3 + 1e-15));
CopyVec(@V, @Vgrads[1]);
BuildRotMatrixX(dS, @M);
RotateVector(@V, @M);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * StepSNorm);
NN2 := 0;
dS := 0;
for itmp := -SmoothN to SmoothN do
begin
if itmp <> 0 then
begin
mMandFunction(@Iteration3D);
dT2 := (NN - Iteration3D.SmoothItD) / itmp;
NN2 := NN2 + dT2;
dS := dS + Sqr(dT2);
end;
mAddVecWeight(@Iteration3D.C1, @V, StepSNorm);
end;
dT2 := Noffset * 0.5 / (dM * StepSNorm);
dSG := (dSG + dS * dM - Sqr(NN2)) * 5 / Max(1e-10, Sqr(NN1) + Sqr(NN2) + Sqr(N3 / dT2));
sRoughness := Max(0, Min(1, Sqrt(dSG) - 0.05));
N1 := N1 + NN1 * dT2;
N2 := N2 + NN2 * dT2;
Iteration3D.maxIt := iMaxIt;
end;
R := 32767 / Sqrt(N1 * N1 + N2 * N2 + N3 * N3);
mPsiLight^.NormalX := Round(N1 * R); //3 normals a 16bit
mPsiLight^.NormalY := Round(N2 * R);
mPsiLight^.NormalZ := Round(N3 * R);
mCopyVec(@Iteration3D.C1, @CT1);
end;
end;
procedure TCalcMissed.CalculateNormalsOnDE(DEstop: Double; var NN, R: Double; mPsiLight: TPsiLight5);
var CT1: TVec3D;
dT2, StepSNorm, dM, dS, dSG, N3, N2, N1, NN2, NN1, Noffset: Double;
itmp, SmoothN: Integer;
V: TVec3D;
M: TMatrix3;
bN3neg: LongBool;
begin
with MCTparas do
begin
Noffset := Min(DEstop * 0.5 / msDEStop, DEstop * 0.15);
Iteration3D.CalcSIT := False;
mCopyVec(@CT1, @Iteration3D.C1);
NN := mMandFunctionDE(@Iteration3D);
mAddVecWeight(@Iteration3D.C1, @Vgrads[2, 0], -Noffset);
N3 := mMandFunctionDE(@Iteration3D) - NN; //Zgradient
mAddVecWeight(@Iteration3D.C1, @Vgrads[2, 0], 2 * Noffset); //Doublecheck because of steps
N1 := NN - mMandFunctionDE(@Iteration3D);
if Abs(N1) < Abs(N3) then N3 := N1;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[0, 0], Noffset);
N1 := mMandFunctionDE(@Iteration3D) - NN; //Xgradient
mAddVecWeight(@Iteration3D.C1, @Vgrads[0, 0], -2 * Noffset);
N2 := NN - mMandFunctionDE(@Iteration3D);
if Abs(N2) < Abs(N1) then N1 := N2;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[1, 0], Noffset);
N2 := mMandFunctionDE(@Iteration3D) - NN; //Ygradient
mAddVecWeight(@Iteration3D.C1, @Vgrads[1, 0], -2 * Noffset);
NN2 := NN - mMandFunctionDE(@Iteration3D);
if Abs(NN2) < Abs(N2) then N2 := NN2;
if iSmNormals > 0 then
begin
Iteration3D.maxIt := Iteration3D.ItResultI + 2;
Noffset := Noffset * 2;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[0, 0], -Noffset); //smooth mid point
NN := NN + mMandFunctionDE(@Iteration3D);
mAddVecWeight(@Iteration3D.C1, @Vgrads[0, 0], 2 * Noffset);
NN := NN + mMandFunctionDE(@Iteration3D);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[1, 0], -Noffset);
NN := NN + mMandFunctionDE(@Iteration3D);
mAddVecWeight(@Iteration3D.C1, @Vgrads[1, 0], 2 * Noffset);
NN := (NN + mMandFunctionDE(@Iteration3D)) * 0.2;
SmoothN := iSmNormals;
StepSNorm := DEstop / ((SmoothN + 0.5) * msDEStop);
dM := SmoothN * 2;
bN3neg := N3 < 0;
if bN3neg then dS := -ArcTan2(N1, N3 - 1e-15) else dS := -ArcTan2(N1, N3 + 1e-15);
// dS := -ArcSin(N1 / Sqrt(N1 * N1 + N3 * N3 + 1e-15));
CopyVec(@V, @Vgrads[0]);
BuildRotMatrixY(dS, @M); //rotate dX only on yaxis
RotateVector(@V, @M);
// dT := StepSNorm / (0.1 + Cos(dS - CAFX));
// mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * dT);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * StepSNorm);
NN1 := 0;
dS := 0;
for itmp := -SmoothN to SmoothN do
begin
if itmp <> 0 then
begin
dT2 := (mMandFunctionDE(@Iteration3D) - NN) / itmp;
NN1 := NN1 + dT2;
dS := dS + Sqr(dT2);
end;
mAddVecWeight(@Iteration3D.C1, @V, StepSNorm);
end;
dSG := dS * dM - Sqr(NN1);
if bN3neg then dS := ArcTan2(N2, N3 - 1e-15) else dS := ArcTan2(N2, N3 + 1e-15);
// dS := ArcSin(N2 / Sqrt(N2 * N2 + N3 * N3 + 1e-15));
CopyVec(@V, @Vgrads[1]);
BuildRotMatrixX(dS, @M); //rotate dY only on xaxis
RotateVector(@V, @M);
// dT := StepSNorm / (0.1 + Cos(dS - CAFY));
// mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * dT);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * StepSNorm);
NN2 := 0;
dS := 0;
for itmp := -SmoothN to SmoothN do
begin
if itmp <> 0 then
begin
dT2 := (mMandFunctionDE(@Iteration3D) - NN) / itmp;
NN2 := NN2 + dT2;
dS := dS + Sqr(dT2);
end;
mAddVecWeight(@Iteration3D.C1, @V, StepSNorm);
end;
dT2 := 0.5 * Noffset / (dM * StepSNorm);
dSG := (dSG + dS * dM - Sqr(NN2)) * 5 / Max(1e-10, Sqr(NN1) + Sqr(NN2) + Sqr(N3 / dT2));
sRoughness := Max(0, Min(1, Sqrt(dSG) - 0.05));
N1 := N1 + NN1 * dT2; //not accurate, only for small deltas (|NN1| << |N1|)
N2 := N2 + NN2 * dT2;
Iteration3D.maxIt := iMaxIt;
end;
R := 32767 / Sqrt(N1 * N1 + N2 * N2 + N3 * N3);
mPsiLight^.NormalX := Round(N1 * R); //3 normals a 16bit
mPsiLight^.NormalY := Round(N2 * R);
mPsiLight^.NormalZ := Round(N3 * R);
mCopyVec(@Iteration3D.C1, @CT1);
Iteration3D.CalcSIT := True;
mMandFunctionDE(@Iteration3D);
NN := Iteration3D.SmoothItD; //for coloring
Iteration3D.CalcSIT := False;
end;
end;
{
procedure TCalcMissed.CalculateNormals(DEstop: Double; var NN, R: Double; mPsiLight: TPsiLight5);
var CT1: TVec3D;
dT2, StepSNorm, dM, dS, dSG, N3, N2, N1, NN2, NN1: Double;
itmp, SmoothN: Integer;
M: TMatrix3;
V: TVec3D;
begin
with MCTparas do
begin
Iteration3D.CalcSIT := True; // Calculate Normals relativ to FOV direction
mCopyVec(@CT1, @Iteration3D.C1);
mMandFunction(@Iteration3D);
NN := Iteration3D.SmoothItD;
mAddVecWeight(@Iteration3D.C1, @Vgrads[2, 0], -0.1);
mMandFunction(@Iteration3D);
N3 := NN - Iteration3D.SmoothItD; //Zgradient
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[0, 0], 0.1);
mMandFunction(@Iteration3D);
N1 := NN - Iteration3D.SmoothItD; //Xgradient
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[1, 0], 0.1);
mMandFunction(@Iteration3D);
N2 := NN - Iteration3D.SmoothItD; //Ygradient
if iSmNormals > 0 then //smoothed with estimation of roughness, eg deviation from mid val
begin // -> only 3 directions is not very good, more deviation if direct in DE direction to bulb
Iteration3D.maxIt := Iteration3D.ItResultI + 2;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[0, 0], -0.2); //smooth mid point
mMandFunction(@Iteration3D);
NN := NN + Iteration3D.SmoothItD;
mAddVecWeight(@Iteration3D.C1, @Vgrads[0, 0], 0.4);
mMandFunction(@Iteration3D);
NN := NN + Iteration3D.SmoothItD;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[1, 0], -0.2);
mMandFunction(@Iteration3D);
NN := NN + Iteration3D.SmoothItD;
mAddVecWeight(@Iteration3D.C1, @Vgrads[1, 0], 0.4);
mMandFunction(@Iteration3D);
NN := (NN + Iteration3D.SmoothItD) * 0.2;
SmoothN := iSmNormals;
StepSNorm := DEstop / ((SmoothN + 0.5) * sDEStop);
dM := SmoothN * 2;
R := 1 / Sqrt(N1 * N1 + N2 * N2 + N3 * N3);
dS := -ArcSin(N1 * R);
CopyVec(@V, @Vgrads[0]);
BuildRotMatrixY(dS, @M); //rotate dX only on yaxis
RotateVector(@V, @M);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * StepSNorm);
NN1 := 0;
dS := 0;
for itmp := -SmoothN to SmoothN do
begin
if itmp <> 0 then
begin
mMandFunction(@Iteration3D);
dT2 := (NN - Iteration3D.SmoothItD) / itmp;
NN1 := NN1 + dT2;
dS := dS + Sqr(dT2);
end;
mAddVecWeight(@Iteration3D.C1, @V, StepSNorm);
end;
dSG := dS * dM - Sqr(NN1);
dS := ArcSin(N2 * R);
CopyVec(@V, @Vgrads[1]);
BuildRotMatrixX(dS, @M);
RotateVector(@V, @M);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * StepSNorm);
NN2 := 0;
dS := 0;
for itmp := -SmoothN to SmoothN do
begin
if itmp <> 0 then
begin
mMandFunction(@Iteration3D);
dT2 := (NN - Iteration3D.SmoothItD) / itmp;
NN2 := NN2 + dT2;
dS := dS + Sqr(dT2);
end;
mAddVecWeight(@Iteration3D.C1, @V, StepSNorm);
end;
dT2 := 0.1 / (dM * StepSNorm); //StepSNorm := DEstop / (SmoothN + 0.5);
dSG := (dSG + dS * dM - Sqr(NN2)) * 3 / Max(1e-10, Sqr(NN1) + Sqr(NN2) + Sqr(N3 / dT2));
sRoughness := Max(0, Min(1, Sqrt(dSG) - 0.13));
N1 := N1 + NN1 * dT2;
N2 := N2 + NN2 * dT2;
Iteration3D.maxIt := iMaxIt;
end;
R := 32767 / Sqrt(N1 * N1 + N2 * N2 + N3 * N3); //recip. length of 3Dgradient
mPsiLight^.NormalX := Round(N1 * R); //3 normals a 16bit
mPsiLight^.NormalY := Round(N2 * R);
mPsiLight^.NormalZ := Round(N3 * R);
mCopyVec(@Iteration3D.C1, @CT1);
end;
end;
procedure TCalcMissed.CalculateNormalsOnDE(DEstop: Double; var NN, R: Double; mPsiLight: TPsiLight5);
var CT1: TVec3D;
dT2, StepSNorm, dM, dS, dSG, N3, N2, N1, NN2, NN1: Double;
itmp, SmoothN: Integer;
M: TMatrix3;
V: TVec3D;
begin
with MCTparas do
begin
Iteration3D.CalcSIT := False;
mCopyVec(@CT1, @Iteration3D.C1);
NN := mMandFunctionDE(@Iteration3D);
mAddVecWeight(@Iteration3D.C1, @Vgrads[2, 0], -0.1);
N3 := mMandFunctionDE(@Iteration3D) - NN; //Zgradient
mAddVecWeight(@Iteration3D.C1, @Vgrads[2, 0], 0.2); //Doublecheck because of steps
N1 := NN - mMandFunctionDE(@Iteration3D);
if Abs(N1) < Abs(N3) then N3 := N1;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[0, 0], 0.1);
N1 := mMandFunctionDE(@Iteration3D) - NN; //Xgradient
mAddVecWeight(@Iteration3D.C1, @Vgrads[0, 0], -0.2);
N2 := NN - mMandFunctionDE(@Iteration3D);
if Abs(N2) < Abs(N1) then N1 := N2;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[1, 0], 0.1);
N2 := mMandFunctionDE(@Iteration3D) - NN; //Ygradient
mAddVecWeight(@Iteration3D.C1, @Vgrads[1, 0], -0.2);
NN2 := NN - mMandFunctionDE(@Iteration3D);
if Abs(NN2) < Abs(N2) then N2 := NN2;
if iSmNormals > 0 then
begin
Iteration3D.maxIt := Iteration3D.ItResultI + 2;
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[0, 0], -0.2); //smooth mid point
NN := NN + mMandFunctionDE(@Iteration3D);
mAddVecWeight(@Iteration3D.C1, @Vgrads[0, 0], 0.4);
NN := NN + mMandFunctionDE(@Iteration3D);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @Vgrads[1, 0], -0.2);
NN := NN + mMandFunctionDE(@Iteration3D);
mAddVecWeight(@Iteration3D.C1, @Vgrads[1, 0], 0.4);
NN := (NN + mMandFunctionDE(@Iteration3D)) * 0.2;
SmoothN := iSmNormals;
StepSNorm := DEstop / ((SmoothN + 0.5) * sDEStop);
dM := SmoothN * 2;
R := 1 / Sqrt(N1 * N1 + N2 * N2 + N3 * N3);
dS := -ArcSin(N1 * R);
CopyVec(@V, @Vgrads[0]);
BuildRotMatrixY(dS, @M); //rotate dX only on yaxis
RotateVector(@V, @M);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * StepSNorm);
NN1 := 0;
dS := 0;
for itmp := -SmoothN to SmoothN do
begin
if itmp <> 0 then
begin
dT2 := (mMandFunctionDE(@Iteration3D) - NN) / itmp;
NN1 := NN1 + dT2;
dS := dS + Sqr(dT2);
end;
mAddVecWeight(@Iteration3D.C1, @V, StepSNorm);
end;
dSG := dS * dM - Sqr(NN1);
dS := ArcSin(N2 * R);
CopyVec(@V, @Vgrads[1]);
BuildRotMatrixX(dS, @M); //rotate dY only on xaxis
RotateVector(@V, @M);
mCopyAddVecWeight(@Iteration3D.C1, @CT1, @V, -SmoothN * StepSNorm);
NN2 := 0;
dS := 0;
for itmp := -SmoothN to SmoothN do
begin
if itmp <> 0 then
begin
dT2 := (mMandFunctionDE(@Iteration3D) - NN) / itmp;
NN2 := NN2 + dT2;
dS := dS + Sqr(dT2);
end;
mAddVecWeight(@Iteration3D.C1, @V, StepSNorm);
end;
dT2 := 0.1 / (dM * StepSNorm);
dSG := (dSG + dS * dM - Sqr(NN2)) * 3 / Max(1e-10, Sqr(NN1) + Sqr(NN2) + Sqr(N3 / dT2));
sRoughness := Max(0, Min(1, Sqrt(dSG) - 0.13));
N1 := N1 + NN1 * dT2; //not accurate, only for small deltas (|NN1| << |N1|)
N2 := N2 + NN2 * dT2;
Iteration3D.maxIt := iMaxIt;
end;
R := 32767 / Sqrt(N1 * N1 + N2 * N2 + N3 * N3); //recip. length of 3Dgradient
mPsiLight^.NormalX := Round(N1 * R); //3 normals a 16bit
mPsiLight^.NormalY := Round(N2 * R);
mPsiLight^.NormalZ := Round(N3 * R);
mCopyVec(@Iteration3D.C1, @CT1);
Iteration3D.CalcSIT := True;
mMandFunctionDE(@Iteration3D);
NN := Iteration3D.SmoothItD; //for coloring
Iteration3D.CalcSIT := False;
end;
end; }
procedure TCalcMissed.CalculateVgradsFOV(ix: Integer);
begin
with MCTparas do
begin
CAFX := (0.5 * iMandWidth - ix) * FOVy / iMandHeight;
BuildRotMatrixFOV(CAFY, CAFX, @VgradsFOV);
Multiply2Matrix(@VgradsFOV, @Vgrads);
end;
end;
procedure TCalcMissed.CalcMissed(n: Integer);
var itmp, itmp2, itmp3, itmp4, itmp5, itmp6: Integer;
x, y, DEstepC: Integer;
MandFunction: TMandFunction;
MandFunctionDE: TMandFunctionDE;
// SL: PCardinal;
mPsiLight, mPsiLight2: TPsiLight5;
bIsCustomDE: LongBool;
dTmp, dT1, zh, ZZ, YP: Double;
CC1, CC2, CC3, R: Double;
DEstop, DEstopFactor, minDE, ZstepDiv12d, DEstopHL: Double;
DEscale, DEoffset{, dISW}: Double;
// PLV: TPaintLightVals;
function calcDE: Double; //Distance Estimation (DE)
var Rtmp, RD1, Rst: Double;
deCT1, deCT2, deCT3: Double;
Mtmp: Integer;
RStopTmp: Single;
begin
if bIsCustomDE then
begin
Iteration3D.CalcSIT := False;
Result := MandFunctionDE(@Iteration3D) * DEscale;
end
else with Iteration3D do
begin
CalcSIT := False; //3d gradient
MandFunction(@Iteration3D);
Mtmp := MaxIt;
MaxIt := ItResultI;
RStopTmp := RStop;
RStop := RStop * 8;
Rtmp := Rout;
Rst := DEoffset;
deCT1 := C1;
deCT2 := C2;
deCT3 := C3;
C1 := C1 + VgradsFOV[2, 0] * Rst;
C2 := C2 + VgradsFOV[2, 1] * Rst;
C3 := C3 + VgradsFOV[2, 2] * Rst;
MandFunction(@Iteration3D);
RD1 := Sqr(Rtmp - Rout);
C1 := deCT1 + VgradsFOV[1, 0] * Rst;
C2 := deCT2 + VgradsFOV[1, 1] * Rst;
C3 := deCT3 + VgradsFOV[1, 2] * Rst;
MandFunction(@Iteration3D);
RD1 := RD1 + Sqr(Rout - Rtmp);
C1 := deCT1 + VgradsFOV[0, 0] * Rst;
C2 := deCT2 + VgradsFOV[0, 1] * Rst;
C3 := deCT3 + VgradsFOV[0, 2] * Rst;
MandFunction(@Iteration3D);
RD1 := Sqrt(RD1 + Sqr(Rout - Rtmp)) + (Rst * 0.06);
Result := Rtmp * Ln(Rtmp) * DEscale / RD1;
MaxIt := Mtmp;
RStop := RStopTmp;
C1 := deCT1;
C2 := deCT2;
C3 := deCT3;
end;
if Result < minDE then Result := minDE;
end;
begin
with MCTparas do
try
Move(dJUx, Iteration3D.J1, 168);
MandFunction := mMandFunction;
MandFunctionDE := mMandFunctionDE;
zh := StepWidth;
bIsCustomDE := IsCustomDE;
ZstepDiv12d := sZstepDiv; //iZstepDiv=2..16 DEaccuracy
DEstopFactor := (1 + 0.3 / msDEStop) * Max(0, FOVy) / iMandHeight;
DEoffset := Min(msDEStop * 0.1, 0.01);
DEscale := dDEscale;
// dISW := 1 + iZstepDiv * 0.1;
y := Max(1, CMYpos - 2);
YXstart := YXstart + Vgrads[1, 0] * y;
YYstart := YYstart + Vgrads[1, 1] * y;
YZstart := YZstart + Vgrads[1, 2] * y;
while y < Min(CMYpos + 3, iMandHeight - 1) do
begin
x := Max(1, CMXpos - 2);
CC1 := YXstart + Vgrads[0, 0] * x;
CC2 := YYstart + Vgrads[0, 1] * x;
CC3 := YZstart + Vgrads[0, 2] * x;
mPsiLight := pSiLight;
Inc(mPsiLight, y * iMandWidth + x);
// SL := PCardinal(FSIstart + FSIoffset * y + 4 * x);
CAFY := (y - 0.5 * iMandHeight) * FOVy / iMandHeight;
while x < Min(CMXpos + 3, iMandWidth - 1) do
with Iteration3D do
begin
CalculateVgradsFOV(x + 1);
ZZ := Zstart;
YP := Zstart;
C1 := CC1;
C2 := CC2;
C3 := CC3;
CalcSIT := False;
itmp := 0;
DEstop := msDEStop;
minDE := DEstop * 0.5;
if iCutOptions > 0 then
begin
maxLengthToCutPlane(YP, itmp, @C1);
YP := ZZ + YP;
end;
//proof, if zpos of neighbourpixels are greater
itmp3 := 0;
for itmp := -1 to 1 do
begin
mPsiLight2 := mPsiLight;
Inc(mPsiLight2, itmp * iMandWidth - 1);
for itmp2 := -1 to 1 do
begin
if (mPsiLight2^.Zpos < 32768) and
(mPsiLight2^.Zpos > itmp3) and (random > 0.2) then itmp3 := mPsiLight2^.Zpos;
Inc(mPsiLight2); // to give lower Z's a chance
end;
end;
//zz to proof:
dT1 := ZZ + (Sqr((32767 - itmp3) * 256 / ZCmul + 1) - 1) / Zcorr;
if ((itmp3 > mPsiLight^.Zpos + 5) or (mPsiLight^.Zpos = 32768)) and (dT1 > YP) then
begin
//move to zpos:
mAddVecWeight(@C1, @VgradsFOV[2, 0], dT1 - ZZ);
ZZ := dT1;
itmp := 30; //bin search
dT1 := Random + 0.5;
dTmp := 0;
dTmp := calcDE;
R := dTmp; //LastDE
repeat
ZZ := ZZ + dT1;
mAddVecWeight(@C1, @VgradsFOV[2, 0], dT1);
if bVaryDEstop then
begin
DEstop := msDEStop * (1 + (ZZ - Zstart) * DEstopFactor);
minDE := DEstop * 0.5;
end;
dTmp := calcDE;
if dTmp < DEstop then dT1 := Abs(dT1) * -0.7 else
if dTmp < R then dT1 := dT1 * 0.8 else dT1 := -0.8 * dT1;
R := dTmp;
Dec(itmp);
until
(itmp < 1) or (Abs(dTmp - DEstop) < 0.001);
//only if DElimited
if ((dTmp - DEstop) < 0.01) and (ZZ > Zstart) and (Iteration3D.ItResultI < MaxIt) then
begin
DEstopHL := DEstop;
if bIsCustomDE then
CalculateNormalsOnDE(DEstop, dTmp, dT1, mPsiLight)
else
CalculateNormals(DEstop, dTmp, dT1, mPsiLight);
// if colItCou then // color on iteration count, fixed grad
// begin
dTmp := 32767 - (dTmp + dColPlus - iMinIt) *
32767 / (maxIt - iMinIt + 1);
// end
// else dTmp := 3e7 / (dT1 * maxIt * maxIt); // color on gradient
if dTmp > 32766.5 then mPsiLight^.SIgradient := 32767 else
if dTmp < 0 then mPsiLight^.SIgradient := 0 else
mPsiLight^.SIgradient := Round(dTmp);
dTmp := Iteration3D.OTrap * 4096;
if dTmp > 32766.5 then mPsiLight^.OTrap := 32767
else mPsiLight^.OTrap := Round(dTmp);
dTmp := 8388352 - ZcMul * (Sqrt((ZZ - Zstart) * Zcorr + 1) - 1);
if dTmp < 0 then iTmp := 0 else itmp := Round(dTmp);
mPsiLight^.Zpos := iTmp shr 8;
mPsiLight^.RoughZposFine := (iTmp and $FF) shl 8;
{ if calcHardShadow then
begin
dT1 := iMandHeight;
if iCutOptions > 0 then
begin
HSminLengthToCutPlane(dT1, @C1);
if dT1 > iMandHeight then dT1 := iMandHeight;
end;
YP := dT1;
dTmp := 0.5 / ZstepDiv12d;
mAddVecWeight(@C1, @VgradsFOV[2, 0], -0.3); // step 0.3 pixel(Z) forward
if YP > 0 then
repeat
dTmp := dTmp * ZstepDiv12d;
YP := YP - dTmp;
mAddVecWeight(@C1, @HSvecs[0], -dTmp);
dTmp := calcDE;
until
((ItResultI < iMinIt) and (ItResultI >= MaxIt) or
(dTmp < DEStopHL)) or (YP <= 0);
if YP <= 0 then mPsiLight^.Shadow := 32767 else
begin
itmp := Round(32767 * (dT1 - YP) / iMandHeight);
if itmp > 32767 then itmp := 32767;
mPsiLight^.Shadow := itmp;
end;
end else begin }
itmp4 := 100000;
itmp3 := mPsiLight^.Shadow;
itmp5 := mPsiLight^.AmbShadow;
itmp6 := mPsiLight^.RoughZposFine;
for itmp := -1 to 1 do
begin
mPsiLight2 := mPsiLight;
Inc(mPsiLight2, itmp * iMandWidth - 1);
for itmp2 := -1 to 1 do
begin
if (mPsiLight2^.Zpos < 32768) and (Abs(itmp) + Abs(itmp2) > 0) then
begin
if Abs(mPsiLight2^.Zpos - mPsiLight^.Zpos) < itmp4 then
begin
itmp4 := Abs(mPsiLight2^.Zpos - mPsiLight^.Zpos);
itmp3 := mPsiLight2^.Shadow;
itmp5 := mPsiLight2^.AmbShadow;
itmp6 := mPsiLight2^.RoughZposFine;
end;
end;
Inc(mPsiLight2);
end;
end;
mPsiLight^.Shadow := itmp3;
mPsiLight^.AmbShadow := itmp5;
mPsiLight^.RoughZposFine := itmp6;
// end;
if iSmNormals > 0 then
mPsiLight^.RoughZposFine := mPsiLight^.RoughZposFine or Round(sRoughness * 255);
{ PLV.xPos := x / iMandWidth;
PLV.yPos := y / iMandHeight;
dTmp := 1 / StepWidth;
PLV.ViewVec[0] := VGradsFOV[2,0] * dTmp;
PLV.ViewVec[1] := VGradsFOV[2,1] * dTmp;
PLV.ViewVec[2] := VGradsFOV[2,2] * dTmp; }
// BuildViewVectorFOV(CAFY, CAFX, @PLV.ViewVec); //to be changed, paint afterwards
// CalcPixelcolor(SL, mPsiLight, PLVals, @PLV);
end;
end;
CC1 := CC1 + Vgrads[0, 0];
CC2 := CC2 + Vgrads[0, 1];
CC3 := CC3 + Vgrads[0, 2];
Inc(x);
// Inc(SL);
Inc(mPsiLight);
end;
YXstart := YXstart + Vgrads[1, 0];
YYstart := YYstart + Vgrads[1, 1];
YZstart := YZstart + Vgrads[1, 2];
Inc(y);
UpdateScaledImage(y div ImageScale, y div ImageScale);
end;
finally
end;
end;
initialization
cCalcMissed := TCalcMissed.Create;
finalization
cCalcMissed.Free;
end.