Point3f RealisticCamera::SampleExitPupil(const Point2f &pFilm,
const Point2f &lensSample,
Float *sampleBoundsArea) const {
// Find exit pupil bound for sample distance from film center
Float rFilm = std::sqrt(pFilm.x * pFilm.x + pFilm.y * pFilm.y);
int rIndex = rFilm / (film->diagonal / 2) * exitPupilBounds.size();
rIndex = std::min((int)exitPupilBounds.size() - 1, rIndex);
Bounds2f pupilBounds = exitPupilBounds[rIndex];
if (sampleBoundsArea) *sampleBoundsArea = pupilBounds.Area();
// Generate sample point inside exit pupil bound
Point2f pLens = pupilBounds.Lerp(lensSample);
// Return sample point rotated by angle of _pFilm_ with $+x$ axis
Float sinTheta = (rFilm != 0) ? pFilm.y / rFilm : 0;
Float cosTheta = (rFilm != 0) ? pFilm.x / rFilm : 1;
return Point3f(cosTheta * pLens.x - sinTheta * pLens.y,
sinTheta * pLens.x + cosTheta * pLens.y, LensRearZ());
}
// MLT Method Definitions
Spectrum MLTIntegrator::L(const Scene &scene, MemoryArena &arena,
const std::unique_ptr<Distribution1D> &lightDistr,
const std::unordered_map<const Light *, size_t> &lightToIndex,
MLTSampler &sampler, int depth, Point2f *pRaster) {
sampler.StartStream(cameraStreamIndex);
// Determine the number of available strategies and pick a specific one
int s, t, nStrategies;
if (depth == 0) {
nStrategies = 1;
s = 0;
t = 2;
} else {
nStrategies = depth + 2;
s = std::min((int)(sampler.Get1D() * nStrategies), nStrategies - 1);
t = nStrategies - s;
}
// Generate a camera subpath with exactly _t_ vertices
Vertex *cameraVertices = arena.Alloc<Vertex>(t);
Bounds2f sampleBounds = (Bounds2f)camera->film->GetSampleBounds();
*pRaster = sampleBounds.Lerp(sampler.Get2D());
if (GenerateCameraSubpath(scene, sampler, arena, t, *camera, *pRaster,
cameraVertices) != t)
return Spectrum(0.f);
// Generate a light subpath with exactly _s_ vertices
sampler.StartStream(lightStreamIndex);
Vertex *lightVertices = arena.Alloc<Vertex>(s);
if (GenerateLightSubpath(scene, sampler, arena, s, cameraVertices[0].time(),
*lightDistr, lightToIndex, lightVertices) != s)
return Spectrum(0.f);
// Execute connection strategy and return the radiance estimate
sampler.StartStream(connectionStreamIndex);
return ConnectBDPT(scene, lightVertices, cameraVertices, s, t, *lightDistr,
lightToIndex, *camera, sampler, pRaster) *
nStrategies;
}
void Console::Draw() {
if ( font == NULL ) {
font = r3::CreateStbFont( con_font.GetVal(), con_fontSize.GetVal() );
}
if ( ! IsActive() ) {
return;
}
int border = 10;
int w = r_windowWidth.GetVal();
int h = r_windowHeight.GetVal();
int conW = w - 2 * border;
int conH = ( h - ( h >> 2 ) ) - border;
float s = con_fontScale.GetVal();
static Bounds2f bO;
static float yAdvance = 0;
static float sCache = 0;
if ( s != sCache ) {
bO = font->GetStringDimensions( "O", s );
Bounds2f bb = font->GetStringDimensions( "|", s );
sCache = s;
yAdvance = std::max( bO.Height(), bb.Height() );
}
int x0 = border;
int y = ( h >> 2) + border;
ImColor( 16, 16, 16, con_opacity.GetVal() * 255 );
BlendFunc( BlendFunc_SrcAlpha, BlendFunc_OneMinusSrcAlpha );
BlendEnable();
DrawQuad( x0, y, x0 + conW, y + conH );
string cl = "> " + commandLine;
int cp = cursorPos + 2;
Bounds2f b = font->GetStringDimensions( cl, s );
Bounds2f b2 = font->GetStringDimensions( cl.substr(0, cp ), s );
ImColor( 255, 255, 255, 192 );
font->Print( cl, x0, y, s );
ImColor( 255, 255, 255, 64 );
DrawQuad( x0 + b2.Width(), y, x0 + b2.Width() + bO.Width(), y + bO.Height() );
y += yAdvance;
ImColor( 255, 255, 255, 128 );
for ( int i = outputBuffer.size() - 1; i >= 0 && y < h; i-- ) {
string & line = outputBuffer[ i ];
font->Print( line, x0, y, s );
y += yAdvance;
}
BlendDisable();
}
void Console::Draw() {
if ( font == NULL ) {
font = r3::CreateStbFont( con_font.GetVal(), "", con_fontSize.GetVal() );
}
ScopedMutex scm( conMutex, R3_LOC );
if ( ! IsActive() ) {
return;
}
int border = 10;
int w = r_windowWidth.GetVal();
int h = r_windowHeight.GetVal();
int conW = w - 2 * border;
int conH = ( h - ( h >> 2 ) ) - border;
float s = con_fontScale.GetVal();
static Bounds2f bO;
static float yAdvance = 0;
static float sCache = 0;
if ( s != sCache ) {
bO = font->GetStringDimensions( "O", s );
Bounds2f bb = font->GetStringDimensions( "|", s );
sCache = s;
yAdvance = std::max<int>( bO.Height(), bb.Height() );
}
int x0 = border;
int y = ( h >> 2) + border;
glColor4ub( 16, 16, 16, con_opacity.GetVal() * 255 );
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
glEnable( GL_BLEND );
DrawQuad( x0, y, x0 + conW, y + conH );
string cl = "> " + commandLine;
int cp = cursorPos + 2;
//Bounds2f b = font->GetStringDimensions( cl, s );
Bounds2f b2 = font->GetStringDimensions( cl.substr(0, cp ), s );
glColor4ub( 255, 255, 255, 192 );
font->Print( cl, x0, y, s );
glColor4ub( 255, 255, 255, 64 );
DrawQuad( x0 + b2.Width(), y, x0 + b2.Width() + bO.Width(), y + bO.Height() );
y += yAdvance;
glColor4ub( 255, 255, 255, 128 );
for ( int i = (int)outputBuffer.size() - 1 - outputBufferPos; i >= 0 && y < h; i-- ) {
string & line = outputBuffer[ i ];
font->Print( line, x0, y, s );
y += yAdvance;
}
glDisable( GL_BLEND );
}
