Can I implement motion blur in gpu architecture?

Ohh, Sorry.
I didn't explain clearly.

Actually I needed to get parameters according to time. so, I could get samples between two frames and implement motion blur by that.

For example:

- CPU mode

err = PF_CHECKOUT_PARAM(in_data, R_SCALE, currentTime - nSampleTime, in_data->time_step, in_data->time_scale, &m_defParam);

if (err) return err;

m_fScale = m_defParam.u.fs_d.value;

I can get scale parameter by the nSampleTime.

- GPU mode ( I found it )

anyParam = static_cast<int>(GetParam(R_SCALE, inRenderParams->inClipTime - nSampleTime).mInt16).

I think I can get the parameters by above way, and sample layers from that, and implement motion blur.

Thanks.

Igor.