void raytrace()
{
uint* imagedata;
cutilSafeCall(cudaGLMapBufferObject((void**)&imagedata, pbo));
float3 A, B, C;
camera.getImagePlane(A, B, C);
dev_camera d_cam(camera.getPosition(), A, B, C, aperture, focal);
dev_light d_light(light.getPosition(), light.getColor(), 4096);
//need to change here.
float3 minAABB, maxAABB;
world.getAABB(minAABB, maxAABB);
sceneInfo scene(world.getNumTriangles(), world.getNumSpheres(), world.getNumBoxes(), minAABB, maxAABB);
//TODO: add control for clear buffer here.
//change here for the many object case
raytraceImage(imagedata, dev_lastframe_ptr, dev_num_layers, r_width, r_height, moved, d_cam, d_light, scene);
//for showing the real frame rate
cudaMemcpy(&frame_num, dev_num_layers, sizeof(float), cudaMemcpyDeviceToHost);
frame_num++;
cudaMemcpy(dev_num_layers, &frame_num, sizeof(int), cudaMemcpyHostToDevice);
cutilSafeCall(cudaGLUnmapBufferObject(pbo));
//download texture from pbo
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
glBindTexture(GL_TEXTURE_2D, framebuffer);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_width, r_height, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
CUT_CHECK_ERROR_GL();
}
void KnotsViewer::draw_fitting_error_colorbar(QPainter *painter)
{
const int barwidth = 20;
const int barheight = 200;
painter->save();
painter->translate(0.8*width(), 0.7*height());
painter->save();
int h1, s1, v1;
int h2, s2, v2;
int color[3];
color[0] =250;
color[1] = 0;
color[2] = 250;
QColor d_light(color[0], color[1], color[2]);
color[0] = 0;
color[1] = 127;
color[2] = 0;
QColor d_dark(color[0], color[1], color[2]);
d_light.getHsv( &h1, &s1, &v1 );
d_dark.getHsv( &h2, &s2, &v2 );
QRect rect(0, -100, barwidth, barheight);
painter->setClipRect( rect );//设置裁剪，默认用裁剪后的替代原先的。
painter->setClipping( true );
painter->fillRect( rect, d_dark );//用d_dark来填充rect
int sectionSize = 4;
int numIntervals;
numIntervals = rect.height() / sectionSize;
for ( int i = 0; i < numIntervals; i++ )
{
QRect colorsection;
colorsection.setRect( rect.x(), rect.y() + i * sectionSize,
rect.width(), sectionSize );
const double ratio = i / static_cast<double>( numIntervals );
QColor c;
c.setHsv( h1 + qRound( ratio * ( h2 - h1 ) ),
s1 + qRound( ratio * ( s2 - s1 ) ),
v1 + qRound( ratio * ( v2 - v1 ) ) );
painter->fillRect( colorsection, c );
}
painter->restore();
sectionSize = 8;
painter->translate(barwidth, 0);
QFont font("Times", 10);
painter->setPen(Qt::black);
painter->setFont(font);
double err_step = max_err / sectionSize;
for ( int i = 0; i <= sectionSize; i++ )
{
QString str = QString::number(i*err_step);
painter->drawText(5, barheight/2-barheight/8*i, str);
}
painter->restore();
}
void KnotsViewer::draw_curvature_colorbar(QPainter *painter)
{
const int barwidth = 20;
const int barheight = 200;
painter->save();
painter->translate(0.8*width(), 0.7*height());
painter->save();
int h1, s1, v1;
int h2, s2, v2;
int color[3];
color[0] = 250;
color[1] = 0;
color[2] = 0;
QColor d_light(color[0], color[1], color[2]);
color[0] = 0;
color[1] = 0;
color[2] = 255;
QColor d_dark(color[0], color[1], color[2]);
d_light.getHsv( &h1, &s1, &v1 );
d_dark.getHsv( &h2, &s2, &v2 );
QRect rect(0, -100, barwidth, barheight);
painter->setClipRect( rect );
painter->setClipping( true );
painter->fillRect( rect, d_dark );
int sectionSize = 4;
int numIntervals;
numIntervals = rect.height() / sectionSize;
for ( int i = 0; i < numIntervals; i++ )
{
QRect colorsection;
colorsection.setRect( rect.x(), rect.y() + i * sectionSize,
rect.width(), sectionSize );
const double ratio = i / static_cast<double>( numIntervals );
QColor c;
c.setHsv( h1 + qRound( ratio * ( h2 - h1 ) ),
s1 + qRound( ratio * ( s2 - s1 ) ),
v1 + qRound( ratio * ( v2 - v1 ) ) );
/*int color[3];
c.getRgb(&color[0], &color[1], &color[2]);*/
painter->fillRect( colorsection, c );
}
painter->restore();
sectionSize = 8;
painter->translate(barwidth, 0);
QFont font("Times", 10);
painter->setPen(Qt::black);
painter->setFont(font);
double max_curve=surfacedata->get_max_meancurvature();
double min_curve=surfacedata->get_min_meancurvature();
double cur_step = (max_curve-min_curve)/ sectionSize;
for ( int i = 0; i <= sectionSize; i++ )
{
QString str = QString::number(i*cur_step+min_curve);
painter->drawText(5, barheight/2-barheight/8*i, str);
}
painter->restore();
}
