Problem for irradiance map with moving camera only

[yogeshwagh]

hi, to all,

I have got a problem for the irradiance map in my animation. so i request you to all people please help me out and give me the solution on it. My settings are as follows:

1) My camera only moves in forward direction till 0 to 450th frame in my animation.

2) All objects are at there places in the entire animation.

3) 18 omni lights with shadowmaps i used in my scene.

4) Primary Bounce is Irradiance Map, Secondary is Lightcache.

5) All default values are set for irradiance map with High Animation settings.

6) My image size is 1920 X 1080 Pixels. Lightcache is 650 Subdivs, and others are by default.

 

I have done the irradiance map calculation for every 100th frame and calculating lightcache for entire animation. but i have got problem at 10th frame onwards , the shadows are not getting proper the are coming as a patches .

So i request you to all please give me any solution to work on it.

 

 

Thanks and Regards

Yogesh Wagh

[Brian Smith]

Calculating IM for only every 100th frame might be the problem if the camera's view is changing too much, i.e. if the camera is moving too fast. I would suggest testing the lighting on very small resolutions, around 500 pixels wide, and try calculating IM every 10th or 15th frame. If that fixes the problem then do a test where you calculate the IM for less and less frames. When you get the settings down then go for the higher resolutions. Also, I'm assuming you're calculating LC every frame.

[yogeshwagh]

thanks for your suggestions, Now i have changed my irradiance calculation Every 100th frame to 25th frame with calculating lightcache. Is there any need to calculate lightcache for every frame?

[yogeshwagh]

Calculating IM for only every 100th frame might be the problem if the camera's view is changing too much, i.e. if the camera is moving too fast. I would suggest testing the lighting on very small resolutions, around 500 pixels wide, and try calculating IM every 10th or 15th frame. If that fixes the problem then do a test where you calculate the IM for less and less frames. When you get the settings down then go for the higher resolutions. Also, I'm assuming you're calculating LC every frame.

thanks for your suggestions, Now i have changed my irradiance calculation Every 100th frame to 25th frame with calculating lightcache. Is there any need to calculate lightcache for every frame?

[Brian Smith]

I would, but like the IM, it depends on how fast your camera moves. I recommend setting LC to 'Fly-through', calculate it first for the entire animation, save the file, switch to 'From File', then calculate IM for every nth frame.

[yogeshwagh]

Thanks Again for your valuable suggestion for me, I think ,I have done exactly in the opposite direction, I calculate Irradiance map first and then lightcache will it be ok or its a wrong procedure to save irradiance?

[Brian Smith]

It doesn't matter which one you calculate first...what's important is that you calculate them indepently, one at a time, without wasting time calculating anything else. Therefore, make sure the 'Don't render final image' option is turned off in Global switches rollout so you don't waste time renderng while calculating either LC or IM. After that, load each from file, so that you can render each frame without calculating IM or LC anymore. Good luck.

[yogeshwagh]

It doesn't matter which one you calculate first...what's important is that you calculate them indepently, one at a time, without wasting time calculating anything else. Therefore, make sure the 'Don't render final image' option is turned off in Global switches rollout so you don't waste time renderng while calculating either LC or IM. After that, load each from file, so that you can render each frame without calculating IM or LC anymore. Good luck.

Thank You very much for helping me out, I will try it defenately .

 

Thanks