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0032606: Visualization - add a shader for sky V3d_View::BackgroundSkydome()

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Introduced V3d_View::SkydomeAspect() property for generating skydome cubemap environment.
Skydome features: day/night cycle, 2 types of clouds, atmosphere, water surface, stars, fog.
This commit is contained in:
achesnok
2021-10-15 01:50:13 +03:00
committed by smoskvin
parent 2ac4e1beee
commit 16a263dc17
18 changed files with 1133 additions and 6 deletions
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59
src/ViewerTest/ViewerTest_ViewerCommands.cxx
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@@ -2692,6 +2692,9 @@ static int VBackground (Draw_Interpretor& theDI,
Aspect_FillMethod anImageMode = Aspect_FM_CENTERED;
bool hasImageMode = false;
bool isSkydomeBg = false;
Aspect_SkydomeBackground aSkydomeAspect;
NCollection_Sequence<TCollection_AsciiString> aCubeMapSeq;
Graphic3d_CubeMapOrder aCubeOrder = Graphic3d_CubeMapOrder::Default();
bool isCubeZInverted = false;
@@ -2722,6 +2725,48 @@ static int VBackground (Draw_Interpretor& theDI,
{
anImagePath = theArgVec[++anArgIter];
}
else if (anArg == "-skydome"
|| anArg == "-sky")
{
isSkydomeBg = true;
}
else if (anArgIter + 3 < theNbArgs
&& isSkydomeBg
&& anArg == "-sundir")
{
float aX = (float) Draw::Atof (theArgVec[++anArgIter]);
float aY = (float) Draw::Atof (theArgVec[++anArgIter]);
float aZ = (float) Draw::Atof (theArgVec[++anArgIter]);
aSkydomeAspect.SetSunDirection (gp_Dir(aX, aY, aZ));
}
else if (anArgIter + 1 < theNbArgs
&& isSkydomeBg
&& anArg == "-cloud")
{
float aCloudy = (float) Draw::Atof (theArgVec[++anArgIter]);
aSkydomeAspect.SetCloudiness (aCloudy);
}
else if (anArgIter + 1 < theNbArgs
&& isSkydomeBg
&& anArg == "-time")
{
float aTime = (float) Draw::Atof (theArgVec[++anArgIter]);
aSkydomeAspect.SetTimeParameter (aTime);
}
else if (anArgIter + 1 < theNbArgs
&& isSkydomeBg
&& anArg == "-fog")
{
float aFoggy = (float) Draw::Atof (theArgVec[++anArgIter]);
aSkydomeAspect.SetFogginess (aFoggy);
}
else if (anArgIter + 1 < theNbArgs
&& isSkydomeBg
&& anArg == "-size")
{
Standard_Integer aSize = Draw::Atoi (theArgVec[++anArgIter]);
aSkydomeAspect.SetSize (aSize);
}
else if (anArgIter + 1 < theNbArgs
&& aCubeMapSeq.IsEmpty()
&& (anArg == "-cubemap"
@@ -3003,6 +3048,11 @@ static int VBackground (Draw_Interpretor& theDI,
aView->SetBgImageStyle (anImageMode);
}
if (isSkydomeBg)
{
aView->SetBackgroundSkydome (aSkydomeAspect, toUseIBL != -1);
}
if (!aCubeMapSeq.IsEmpty())
{
Handle(Graphic3d_CubeMap) aCubeMap;
@@ -13809,6 +13859,8 @@ vbackground [-color Color [-default]]
[-gradientMode {NONE|HORIZONTAL|VERTICAL|DIAG1|DIAG2|CORNER1|CORNER2|CORNER3|ELLIPTICAL}]=VERT]
[-imageFile ImageFile [-imageMode {CENTERED|TILED|STRETCH|NONE}]=CENTERED [-srgb {0|1}]=1]
[-cubemap CubemapFile1 [CubeMapFiles2-5] [-order TilesIndexes1-6] [-invertedz]=0]
[-skydome [-sunDir X Y Z=0 1 0] [-cloud Cloudy=0.2] [-time Time=0.0]
[-fog Haze=0.0] [-size SizePx=512]]
[-pbrEnv {ibl|noibl|keep}]
Changes background or some background settings.
-color sets background color
@@ -13824,6 +13876,13 @@ Changes background or some background settings.
-order defines order of tiles in one image cubemap
TileIndexi defubes an index in range [0, 5] for i tile of one image packed cubemap
(has no effect in case of multi-image cubemaps).
Skydome background parameters (generated cubemap):
-skydome sets procedurally generated skydome as background
-sunDir sets direction to the sun, direction with negative y component represents moon direction (-x, -y, -z)
-cloud sets cloud intensity (0.0 - clear sky, 1.0 - very high cloudy)
-time might be tweaked to slightly change appearance of clouds
-fog sets mist intensity (0.0 - no mist at all, 1.0 - high mist)
-size sets size in pixels of cubemap side
)" /* [vbackground] */);
addCmd ("vsetbg", VBackground, /* [vsetbg] */ R"(