void doIdle()
{
if (g_bRayTrace)
{
g_ScreenBuffer[g_Y][g_X] = g_RayTrace.CalculatePixel (g_X, g_Y);
// Move to the next pixel
g_X++;
if (g_X >= WINDOW_WIDTH)
{
// Move to the next row
g_X = 0;
g_Y++;
//You can uncomment the next line to see the raytrace update each step
//glutPostRedisplay();
}
// Check for the end of the screen
if (g_Y >= WINDOW_HEIGHT)
{
g_bRayTrace = false;
glutPostRedisplay ();
}
}
else
{
glutPostRedisplay ();
}
}
/*
doIdle - The idle-function that can be used to update the screen
*/
void doIdle()
{
if (g_bRayTrace)
{
g_ScreenBuffer[g_Y][g_X] = g_RayTrace.CalculatePixel (g_X, g_Y);
//printf ("Drawing %d, %d\n", g_X, g_Y);
// Move to the next pixel
g_X++;
if (g_X >= Scene::WINDOW_WIDTH)
{
// Move to the next row
g_X = 0;
g_Y++;
/* You can uncomment the next line
to see the raytrace "in-action" */
//glutPostRedisplay();
}
// Check for the end of the screen
if (g_Y >= Scene::WINDOW_HEIGHT)
{
g_bRayTrace = false;
glutPostRedisplay ();
}
}
else
{
glutPostRedisplay ();
}
}
/*
doIdle - The idle-function that can be used to update the screen
*/
void doIdle()
{
if (g_bRayTrace)
{
g_ScreenBuffer[g_Y][g_X] = g_RayTrace.CalculatePixel (g_X, g_Y);
//printf ("Drawing %d, %d\n", g_X, g_Y);
// Move to the next pixel
g_X++;
if (g_X >= Scene::WINDOW_WIDTH)
{
// Move to the next row
g_X = 0;
g_Y++;
/* You can uncomment the next line
to see the raytrace "in-action" */
glutPostRedisplay();
}
// Check for the end of the screen
if (g_Y >= Scene::WINDOW_HEIGHT)
{
g_bRayTrace = false;
glutPostRedisplay ();
if (recording)
{
// ** Save frame
std::string fileName ("frame_" + std::to_string(frame) +".jpg");
char *file = const_cast<char*>(fileName.c_str());
saveScreenshot(file);
++frame;
// ** Move to the next position
Vector dir = g_RayTrace.m_Scene.m_Camera.GetTarget() - g_RayTrace.m_Scene.m_Camera.GetPosition();
float tar_posDist = dir.Magnitude();
dir.Normalize();
Vector right = dir.Cross(g_RayTrace.m_Scene.m_Camera.GetUp());
Vector tempVec;
float turnSpeed = 0.01f;
// - Turn Left -
// Simulate a Left-Turn by finding a position just a little to the left of the direction
tempVec = dir - right * turnSpeed;
tempVec.Normalize();
g_RayTrace.m_Scene.m_Camera.SetTarget(g_RayTrace.m_Scene.m_Camera.GetPosition() + tempVec * tar_posDist);
// ** Start rendering again
g_X = 0;
g_Y = 0;
g_bRayTrace = true;
// ** Finish check
if (frame > 650)
{
recording = false;
g_bRayTrace = false;
}
}
}
}
else
{
glutPostRedisplay ();
}
}
