UI_base* W_colorBand::OnLButtonDown(int x, int y)
{
if (Hittest(x,y))
{
colorbandItem* pCurrentColorbandItem;
for(std::list<colorbandItem*>::iterator iter = listofcolorbandItems.begin(); iter != listofcolorbandItems.end(); iter ++)
{
pCurrentColorbandItem = *iter;
if (y > posy - height+pCurrentColorbandItem->pos*height-4.0f && y < posy - height+pCurrentColorbandItem->pos*height+4.0f)
{
if (pActiveColorBandItem != pCurrentColorbandItem)
{
pActiveColorBandItem = pCurrentColorbandItem;
}
draggingcolorbandItem = true;
pInterceptChild = this;
return this;
}
}
if (!draggingcolorbandItem)
{
float r,g,b,a;
GetColorAt(&r,&g,&b,&a,(float)(y+height-posy)/(float)(height));
colorbandItem* tempnode = NewColorbandItem((float)(y+height-posy)/(float)(height),r,g,b,a);
listofcolorbandItems.push_back( tempnode);
SortList();
pActiveColorBandItem = tempnode;
//if (pParentUI_base) pParentUI_base->Callback(this,2);
draggingcolorbandItem = true;
pInterceptChild = this;
return this;
}
}
pInterceptChild = 0;
return 0;
}
SFVEC3F CPOSTSHADER_SSAO::Shade( const SFVEC2I &aShaderPos ) const
{
// Test source code
//return SFVEC3F( GetShadowFactorAt( aShaderPos ) );
//return GetColorAt( aShaderPos );
//return SFVEC3F( 1.0f - GetDepthNormalizedAt( aShaderPos ) );
//return SFVEC3F( (1.0f / GetDepthAt( aShaderPos )) * 0.5f );
//return SFVEC3F( 1.0f - GetDepthNormalizedAt( aShaderPos ) +
// (1.0f / GetDepthAt( aShaderPos )) * 0.5f );
#if 1
float cdepth = GetDepthAt( aShaderPos );
if( cdepth > FLT_EPSILON )
{
float cNormalizedDepth = GetDepthNormalizedAt( aShaderPos );
wxASSERT( cNormalizedDepth <= 1.0f );
wxASSERT( cNormalizedDepth >= 0.0f );
cdepth = ( (1.50f - cNormalizedDepth) +
( 1.0f - (1.0f / (cdepth + 1.0f) ) ) * 2.5f );
// Test source code
//cdepth = ( (1.75f - cNormalizedDepth) + (1.0f / cdepth) * 2.0f );
//cdepth = 1.5f - cNormalizedDepth;
//cdepth = (1.0f / cdepth) * 2.0f;
// read current normal,position and color.
const SFVEC3F n = GetNormalAt( aShaderPos );
const SFVEC3F p = GetPositionAt( aShaderPos );
//const SFVEC3F col = GetColorAt( aShaderPos );
const float shadowFactor = GetShadowFactorAt( aShaderPos );
// initialize variables:
float ao = 0.0f;
SFVEC3F gi = SFVEC3F(0.0f);
// This calculated the "window range" of the shader. So it will get
// more or less sparsed samples
const int incx = 3;
const int incy = 3;
//3 rounds of 8 samples each.
for( unsigned int i = 0; i < 3; ++i )
{
static const int mask[3] = { 0x01, 0x03, 0x03 };
const int pw = 1 + (Fast_rand() & mask[i]);
const int ph = 1 + (Fast_rand() & mask[i]);
const int npw = (int)((pw + incx * i) * cdepth );
const int nph = (int)((ph + incy * i) * cdepth );
const SFVEC3F ddiff = GetPositionAt( aShaderPos + SFVEC2I( npw, nph ) ) - p;
const SFVEC3F ddiff2 = GetPositionAt( aShaderPos + SFVEC2I( npw,-nph ) ) - p;
const SFVEC3F ddiff3 = GetPositionAt( aShaderPos + SFVEC2I(-npw, nph ) ) - p;
const SFVEC3F ddiff4 = GetPositionAt( aShaderPos + SFVEC2I(-npw,-nph ) ) - p;
const SFVEC3F ddiff5 = GetPositionAt( aShaderPos + SFVEC2I( 0, nph ) ) - p;
const SFVEC3F ddiff6 = GetPositionAt( aShaderPos + SFVEC2I( 0,-nph ) ) - p;
const SFVEC3F ddiff7 = GetPositionAt( aShaderPos + SFVEC2I( npw, 0 ) ) - p;
const SFVEC3F ddiff8 = GetPositionAt( aShaderPos + SFVEC2I(-npw, 0 ) ) - p;
ao+= aoFF( aShaderPos, ddiff , n, npw, nph, shadowFactor );
ao+= aoFF( aShaderPos, ddiff2, n, npw,-nph, shadowFactor );
ao+= aoFF( aShaderPos, ddiff3, n, -npw, nph, shadowFactor );
ao+= aoFF( aShaderPos, ddiff4, n, -npw,-nph, shadowFactor );
ao+= aoFF( aShaderPos, ddiff5, n, 0, nph, shadowFactor );
ao+= aoFF( aShaderPos, ddiff6, n, 0,-nph, shadowFactor );
ao+= aoFF( aShaderPos, ddiff7, n, npw, 0, shadowFactor );
ao+= aoFF( aShaderPos, ddiff8, n, -npw, 0, shadowFactor );
gi+= giFF( aShaderPos, ddiff , n, npw, nph) *
giColorCurve( GetColorAt( aShaderPos + SFVEC2I( npw, nph ) ) );
gi+= giFF( aShaderPos, ddiff2, n, npw, -nph) *
giColorCurve( GetColorAt( aShaderPos + SFVEC2I( npw,-nph ) ) );
gi+= giFF( aShaderPos, ddiff3, n,-npw, nph) *
giColorCurve( GetColorAt( aShaderPos + SFVEC2I( -npw, nph ) ) );
gi+= giFF( aShaderPos, ddiff4, n,-npw, -nph) *
giColorCurve( GetColorAt( aShaderPos + SFVEC2I( -npw,-nph ) ) );
gi+= giFF( aShaderPos, ddiff5, n, 0.0f, nph) *
giColorCurve( GetColorAt( aShaderPos + SFVEC2I( 0, nph ) ) );
gi+= giFF( aShaderPos, ddiff6, n, 0.0f,-nph) *
giColorCurve( GetColorAt( aShaderPos + SFVEC2I( 0,-nph ) ) );
gi+= giFF( aShaderPos, ddiff7, n, npw, 0.0f) *
giColorCurve( GetColorAt( aShaderPos + SFVEC2I( npw, 0) ) );
gi+= giFF( aShaderPos, ddiff8, n,-npw, 0.0f) *
giColorCurve( GetColorAt( aShaderPos + SFVEC2I( -npw, 0) ) );
}
ao = (ao / 24.0f) + 0.0f; // Apply a bias for the ambient oclusion
gi = (gi * 5.0f / 24.0f); // Apply a bias for the global illumination
//return SFVEC3F(ao);
return SFVEC3F( SFVEC3F(ao) - gi);
// Test source code
//return SFVEC3F( col );
//return SFVEC3F( col - SFVEC3F(ao) + gi * 5.0f );
//return SFVEC3F( SFVEC3F(1.0f) - SFVEC3F(ao) + gi * 5.0f );
//return SFVEC3F(cdepth);
//return 1.0f - SFVEC3F(ao);
//return SFVEC3F(ao);
}
else
return SFVEC3F(0.0f);
#endif
}
