CParticleColorModifierType::CParticleColorModifierType(void)
{
m_vStartColor=CRGBColor(1,1,1);
m_vEndColor=CRGBColor(1,1,1);
m_dStartAlpha=1;
m_dEndAlpha=1;
m_dAlphaTransitionStart=0;
m_dAlphaTransitionEnd=1;
m_dColorTransitionStart=0;
m_dColorTransitionEnd=1;
}
void UT_MapDisk() {
hScreen = CDisplayScreen::GetInstance();
hScreen->Init();
int nSamples = 512;
int width = nSamples, height = nSamples;
//CMultiJitteredSampler* sampler=new CMultiJitteredSampler(nSamples,1);
//CNRookSampler* sampler=new CNRookSampler(nSamples,1);
//CJitteredSampler* sampler=new CJitteredSampler(nSamples,1);
CHammersleySampler* sampler = new CHammersleySampler(nSamples, 1);
sampler->Map_sample_to_unit_disk();
CPoint2D pt;
for (int i = 0; i < nSamples; i++) {
pt = sampler->Sample_unit_disk();
//Move center(1,1) to (0,0)
pt.x+=1.0;
pt.y+=1.0;
pt = pt * nSamples/2;
hScreen->SetPixel(pt.x, pt.y, CRGBColor(255, 255, 255));
}
hScreen->OpenWindow(width, height, 1);
glutDisplayFunc(display);
glutMainLoop();
}
CRGBColor CPainter::ReadPoint(const CPoint& Point)
{
CPoint RealPoint = (m_pWindow != 0) ? Point + m_pWindow->GetClientRect().TopLeft() : Point;
Uint32 PixelColor = 0;
if (CRect(0, 0, m_pSurface->w, m_pSurface->h).HitTest(RealPoint) == CRect::RELPOS_INSIDE)
{
Uint8* PixelOffset = static_cast<Uint8*>(m_pSurface->pixels) +
m_pSurface->format->BytesPerPixel * RealPoint.XPos() + m_pSurface->pitch * RealPoint.YPos();
switch (m_pSurface->format->BytesPerPixel)
{
case 1: // 8 bpp
PixelColor = *reinterpret_cast<Uint8*>(PixelOffset);
break;
case 2: // 16 bpp
PixelColor = *reinterpret_cast<Uint16*>(PixelOffset);
break;
case 3: // 24 bpp
{
Uint8* pPixelDest = reinterpret_cast<Uint8*>(&PixelColor);
Uint8* pPixelSource = reinterpret_cast<Uint8*>(PixelOffset);
*pPixelDest = *pPixelSource;
*(++pPixelDest) = *(++pPixelSource);
*(++pPixelDest) = *(++pPixelSource);
break;
}
case 4: // 32 bpp
PixelColor = *reinterpret_cast<Uint32*>(PixelOffset);
break;
default:
throw(Wg_Ex_SDL("CPainter::DrawPoint : Unrecognized BytesPerPixel."));
break;
}
}
return CRGBColor(&PixelColor, m_pSurface->format);
}
void UT_Sinusoid() {
hScreen = CDisplayScreen::GetInstance();
hScreen->Init();
int width = 800, height = 800;
double peroid = 100;
double z;
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
z = 255.0
* sin(
pow((double(y) / peroid), 2)
* pow((double(x) / peroid), 2));
hScreen->SetPixel(x, y, CRGBColor(z, z, z));
}
}
hScreen->OpenWindow(width, height, 1);
glutDisplayFunc(display);
glutMainLoop();
return;
}
void CPinhole::Render_Stereo(CWorld* _world, double _x, int _offset) {
CRGBColor pixel_color;
CRay ray;
CPoint2D pt;
double x, y;
int nSample = _world->vp.nSamples;
double hres = _world->vp.hres;
double vres = _world->vp.vres;
double size = _world->vp.size / m_zoom;
/*
* Clean before rendering
*/
ray.o = m_eye;
for (int c = 0; c < hres; c++) {
for (int r = 0; r < vres; r++) {
pixel_color = CRGBColor(0, 0, 0);
for (int p = 0; p < nSample; p++) {
pt = _world->vp.sampler->Sample_unit_square();
x = size * (c - hres / 2 + pt.x) + _x;
y = size * (r - vres / 2 + pt.y);
ray.d = Ray_Direction(CPoint2D(x, y));
pixel_color += _world->tracer_ptr->Trace_Ray(ray);
}
pixel_color /= nSample;
_world->m_screen->SetPixel(c+_offset, r, pixel_color);
}
}
}
void CThinLens::Render_Scence(CWorld* _world) {
CPoint2D lp;
CPoint2D sp;
CPoint2D dp;
CPoint2D pp;
CRGBColor pixelColor;
CRay ray;
double size = _world->vp.size;
int hres = _world->vp.hres;
int vres = _world->vp.vres;
int nSamples = _world->vp.nSamples;
_world->m_screen->Clear();
_world->m_screen->OpenWindow(hres, vres, _world->vp.size);
size /= m_zoom;
for (int c = 0; c < hres; c++) {
for (int r = 0; r < vres; r++) {
pixelColor = CRGBColor(0, 0, 0);
for (int p = 0; p < nSamples; p++) {
dp = this->sampler->Sample_unit_square();
lp = dp * m_radius;
pp = _world->vp.sampler->Sample_unit_square();
sp.x = size * (c - hres / 2 + pp.x);
sp.y = size * (r - vres / 2 + pp.y);
ray.o = m_eye + lp.x * m_u + lp.y * m_v;
ray.d = Ray_Direction(sp, lp);
pixelColor += _world->tracer_ptr->Trace_Ray(ray);
}
pixelColor /= nSamples;
_world->m_screen->SetPixel(c, r, pixelColor);
}
}
}
