void APE::v_ExtraFldOutput(
std::vector<Array<OneD, NekDouble> > &fieldcoeffs,
std::vector<std::string> &variables)
{
UpdateBasefield();
const int nCoeffs = m_fields[0]->GetNcoeffs();
for (int i = 0; i < m_spacedim + 2; i++)
{
variables.push_back(m_basefield_names[i]);
Array<OneD, NekDouble> tmpFwd(nCoeffs);
m_fields[0]->FwdTrans(m_basefield[i], tmpFwd);
fieldcoeffs.push_back(tmpFwd);
}
}
bool ProjectedShadow::_updateDecal( const SceneRenderState *state )
{
PROFILE_SCOPE( ProjectedShadow_UpdateDecal );
if ( !LIGHTMGR )
return false;
// Get the position of the decal first.
const Box3F &objBox = mParentObject->getObjBox();
const Point3F boxCenter = objBox.getCenter();
Point3F decalPos = boxCenter;
const MatrixF &renderTransform = mParentObject->getRenderTransform();
{
// Set up the decal position.
// We use the object space box center
// multiplied by the render transform
// of the object to ensure we benefit
// from interpolation.
MatrixF t( renderTransform );
t.setColumn(2,Point3F::UnitZ);
t.mulP( decalPos );
}
if ( mDecalInstance )
{
mDecalInstance->mPosition = decalPos;
if ( !shouldRender( state ) )
return false;
}
// Get the sunlight for the shadow projection.
// We want the LightManager to return NULL if it can't
// get the "real" sun, so we specify false for the useDefault parameter.
LightInfo *lights[4] = {0};
LightQuery query;
query.init( mParentObject->getWorldSphere() );
query.getLights( lights, 4 );
Point3F pos = renderTransform.getPosition();
Point3F lightDir( 0, 0, 0 );
Point3F tmp( 0, 0, 0 );
F32 weight = 0;
F32 range = 0;
U32 lightCount = 0;
F32 dist = 0;
F32 fade = 0;
for ( U32 i = 0; i < 4; i++ )
{
// If we got a NULL light,
// we're at the end of the list.
if ( !lights[i] )
break;
if ( !lights[i]->getCastShadows() )
continue;
if ( lights[i]->getType() != LightInfo::Point )
tmp = lights[i]->getDirection();
else
tmp = pos - lights[i]->getPosition();
range = lights[i]->getRange().x;
dist = ( (tmp.lenSquared()) / ((range * range) * 0.5f));
weight = mClampF( 1.0f - ( tmp.lenSquared() / (range * range)), 0.00001f, 1.0f );
if ( lights[i]->getType() == LightInfo::Vector )
fade = getMax( fade, 1.0f );
else
fade = getMax( fade, mClampF( 1.0f - dist, 0.00001f, 1.0f ) );
lightDir += tmp * weight;
lightCount++;
}
lightDir.normalize();
// No light... no shadow.
if ( !lights[0] )
return false;
// Has the light direction
// changed since last update?
bool lightDirChanged = !mLastLightDir.equal( lightDir );
// Has the parent object moved
// or scaled since the last update?
bool hasMoved = !mLastObjectPosition.equal( mParentObject->getRenderPosition() );
bool hasScaled = !mLastObjectScale.equal( mParentObject->getScale() );
// Set the last light direction
// to the current light direction.
mLastLightDir = lightDir;
mLastObjectPosition = mParentObject->getRenderPosition();
mLastObjectScale = mParentObject->getScale();
// Temps used to generate
// tangent vector for DecalInstance below.
VectorF right( 0, 0, 0 );
VectorF fwd( 0, 0, 0 );
VectorF tmpFwd( 0, 0, 0 );
U32 idx = lightDir.getLeastComponentIndex();
tmpFwd[idx] = 1.0f;
right = mCross( tmpFwd, lightDir );
fwd = mCross( lightDir, right );
right = mCross( fwd, lightDir );
right.normalize();
// Set up the world to light space
// matrix, along with proper position
// and rotation to be used as the world
// matrix for the render to texture later on.
static MatrixF sRotMat(EulerF( 0.0f, -(M_PI_F/2.0f), 0.0f));
mWorldToLight.identity();
MathUtils::getMatrixFromForwardVector( lightDir, &mWorldToLight );
mWorldToLight.setPosition( ( pos + boxCenter ) - ( ( (mRadius * smDepthAdjust) + 0.001f ) * lightDir ) );
mWorldToLight.mul( sRotMat );
mWorldToLight.inverse();
// Get the shapebase datablock if we have one.
ShapeBaseData *data = NULL;
if ( mShapeBase )
data = static_cast<ShapeBaseData*>( mShapeBase->getDataBlock() );
// We use the object box's extents multiplied
// by the object's scale divided by 2 for the radius
// because the object's worldsphere radius is not
// rotationally invariant.
mRadius = (objBox.getExtents() * mParentObject->getScale()).len() * 0.5f;
if ( data )
mRadius *= data->shadowSphereAdjust;
// Create the decal if we don't have one yet.
if ( !mDecalInstance )
mDecalInstance = gDecalManager->addDecal( decalPos,
lightDir,
right,
mDecalData,
1.0f,
0,
PermanentDecal | ClipDecal | CustomDecal );
if ( !mDecalInstance )
return false;
mDecalInstance->mVisibility = fade;
// Setup decal parameters.
mDecalInstance->mSize = mRadius * 2.0f;
mDecalInstance->mNormal = -lightDir;
mDecalInstance->mTangent = -right;
mDecalInstance->mRotAroundNormal = 0;
mDecalInstance->mPosition = decalPos;
mDecalInstance->mDataBlock = mDecalData;
// If the position of the world
// space box center is the same
// as the decal's position, and
// the light direction has not
// changed, we don't need to clip.
bool shouldClip = lightDirChanged || hasMoved || hasScaled;
// Now, check and see if the object is visible.
const Frustum &frust = state->getCullingFrustum();
if ( frust.isCulled( SphereF( mDecalInstance->mPosition, mDecalInstance->mSize * mDecalInstance->mSize ) ) && !shouldClip )
return false;
F32 shadowLen = 10.0f;
if ( data )
shadowLen = data->shadowProjectionDistance;
const Point3F &boxExtents = objBox.getExtents();
mShadowLength = shadowLen * mParentObject->getScale().z;
// Set up clip depth, and box half
// offset for decal clipping.
Point2F clipParams( mShadowLength, (boxExtents.x + boxExtents.y) * 0.25f );
bool render = false;
bool clipSucceeded = true;
// Clip!
if ( shouldClip )
{
clipSucceeded = gDecalManager->clipDecal( mDecalInstance,
NULL,
&clipParams );
}
// If the clip failed,
// we'll return false in
// order to keep from
// unnecessarily rendering
// into the texture. If
// there was no reason to clip
// on this update, we'll assume we
// should update the texture.
render = clipSucceeded;
// Tell the DecalManager we've changed this decal.
gDecalManager->notifyDecalModified( mDecalInstance );
return render;
}
