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small planet mapping

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This commit is contained in:
Miloslav Číž 2017-11-08 12:58:27 +01:00
parent 5f36518181
commit 5698d70806
1 changed files with 19 additions and 4 deletions
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23
apps/openmw/mwrender/renderingmanager.cpp
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@ -644,12 +644,12 @@ namespace MWRender
for (int j = 0; j < h; ++j)
for (int i = 0; i < w; ++i)
dest->setColor(getColorByDirection(sphericalCoords(i / ((float) w), j / ((float) h))),i,j);
dest->setColor(getColorByDirection(smallPlanetCoords(i / ((float) w), j / ((float) h))),i,j);
}
osg::Vec3d cylindricalCoords(double x, double y)
{
osg::Vec3 result = osg::Vec3d(sin(x * 2 * osg::PI),cos(x * 2 * osg::PI),y * 2.0 - 1.0);
osg::Vec3 result = osg::Vec3d(cos(x * 2 * osg::PI),sin(x * 2 * osg::PI),y * 2.0 - 1.0);
result.normalize();
return result;
}
@ -665,6 +665,21 @@ namespace MWRender
return result;
}
osg::Vec3d smallPlanetCoords(double x, double y)
{
osg::Vec2d fromCenter = osg::Vec2d(x,y) - osg::Vec2d(0.5,0.5);
double magnitude = fromCenter.length();
fromCenter.normalize();
double dot = fromCenter * osg::Vec2d(0.0,1.0);
x = x > 0.5 ? 0.5 - (dot + 1) / 4.0 : 0.5 + (dot + 1) / 4.0;
y = pow(std::min(1.0,magnitude / 0.5),0.5);
return sphericalCoords(x,y);
}
osg::Vec4 getColorByDirection(osg::Vec3d d)
{
double x, y;
@ -720,7 +735,7 @@ namespace MWRender
return mImages[side]->getColor(
std::min(std::max(int(x * mSize),0),mSize - 1),
std::min(std::max(int(y * mSize),0),mSize - 1)); //osg::Vec4(d.x(),d.y(),d.z(),1);
std::min(std::max(int(y * mSize),0),mSize - 1));
}
protected:
@ -762,7 +777,7 @@ namespace MWRender
if (mCamera->isFirstPerson())
mPlayerAnimation->getObjectRoot()->setNodeMask(1);
s.create(image,1600,768);
s.create(image,1600,1600);
mFieldOfView = fovBackup;
}