could somebody tell how to create normal and depth pass in houdini using takes
thank you very much.

Just add two extra image planes in a standard Mantra ROP in the Properties > Output tab. There are a list of default exports you can choose from the right hand menu on the VEX Variable parameter for each export you add.

One export, choose Pz for depth pass.
Other export, choose N for normal pass.

Both should use the Pixel Filter “Closest Sample Filtering” returning minmax min and set to 32 bit float output. The minmax min filter will ensure that there is no filtering at geometric edges which will introduce errors when you use these in compositing operations.

jeff
Just add two extra image planes in a standard Mantra ROP in the Properties > Output tab. There are a list of default exports you can choose from the right hand menu on the VEX Variable parameter for each export you add.

One export, choose Pz for depth pass.
Other export, choose N for normal pass.

Both should use the Pixel Filter “Closest Sample Filtering” returning minmax min and set to 32 bit float output. The minmax min filter will ensure that there is no filtering at geometric edges which will introduce errors when you use these in compositing operations.

Hi Jeff,
firstly thanks for the reply.can we do that using takes.Sorry im beginning with Houdini