/* calcula uma linha da imagem a cada camada de idle */
int idle_cb(void)
{
int x;
/* Faz uma linha de pixels por vez */
if (yc<height) {
IupGLMakeCurrent(canvas);
glBegin(GL_POINTS);
for( x = 0; x < width; ++x ) {
Color pixel;
Vector ray;
ray = camGetRay( camera, x, yc );
pixel = rayTrace( scene, eye, ray, 0 );
imageSetPixel( image, x, yc, pixel );
glColor3f((float)pixel.red,(float)pixel.green,(float)pixel.blue);
glVertex2i(x,yc);
}
glEnd();
glFlush();
IupGLSwapBuffers(canvas); /* change the back buffer with the front buffer */
yc++;
}
else {
IupSetFunction (IUP_IDLE_ACTION, (Icallback) NULL); /* a imagem ja' esta' completa */
finish_time = clock();
duration = (double)(finish_time - start_time)/CLOCKS_PER_SEC;
IupSetfAttribute(label, "TITLE", "tempo=%.3lf s", duration);
}
return IUP_DEFAULT;
}
/* calcula uma linha da imagem a cada camada de idle */
int idle_cb(void)
{
int x;
double ray[VECTOR];
float pixel[COLOR];
/* Faz uma linha de pixels por vez */
if (yc < height) {
IupGLMakeCurrent(canvas);
glBegin(GL_POINTS);
{
for (x = 0; x < width; ++x) {
camGetRay(camera, x, yc, ray);
rayTrace(scene, eye, ray, 0, pixel);
imageSetPixel(image, x, yc, pixel);
glColor3f((float) pixel[RED], (float) pixel[GREEN], (float) pixel[BLUE]);
glVertex2i(x, yc);
}
}
glEnd();
glFlush();
IupGLSwapBuffers(canvas);
yc++;
} else {
IupSetFunction (IUP_IDLE_ACTION, (Icallback) NULL); /* a imagem ja' esta' completa */
finish_time = clock();
duration = (double)(finish_time - start_time)/CLOCKS_PER_SEC;
IupSetfAttribute(label, "TITLE", "tempo=%.3lf s", duration);
glFlush();
}
return IUP_DEFAULT;
}
