Make a para­met­ric win­dow as­set and use it in Houdini En­gine for 3ds Max with ian boni­facic


01 Plan out your HDA in ad­vance Try to fig­ure out how you’re go­ing to use your win­dows/hda and in­cor­po­rate them/it in your work­flow.

Think about what you want to have as your en­try data, so you can plan out your end data (end prod­uct).

02 it’s all about the scale This was one of the first prob­lems I had, fig­ur­ing out the scale from 3ds Max to Houdini and back. Chang­ing units won’t help you here. The eas­i­est thing to do is just use Trans­form node af­ter the File node of your im­port ge­om­e­try and scale ev­ery­thing by 0.01. Af­ter fin­ish­ing your whole hi­er­ar­chy, add an­other trans­form node at the end and scale ev­ery­thing by 100. This works per­fectly.

03 Seg­ment a prob­lem When try­ing to solve com­pli­cated prob­lems, try seg­ment­ing them into smaller tasks. By do­ing this, it’s eas­ier to stay mo­ti­vated and solve some­times for­mi­da­ble tasks.

You will feel ac­com­plish­ment af­ter solv­ing each small task, and one-by-one you will get to the end so­lu­tion to your prob­lem.

04 Groups = gold The Group node in Houdini is one of the most im­por­tant fea­tures I’ve learnt about while de­vel­op­ing this HDA. Group and tag ev­ery­thing you could pos­si­bly need for your end prod­uct (HDA). With a cou­ple of smart groups, you can achieve lim­it­less con­trol, which can then be linked to your slid­ers in the HDA.

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