Peter (RL) (3/30/2020)

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Albin - Please don't post the same question more than once. You have another post with the same question below. Just post once and wait for a reply.

https://forum.reallusion.com/439186/Animating-walking-down-the-stairs

animagic (3/30/2020)

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@AlbinosGambit: the motion I bought is this one: https://marketplace.reallusion.com/climb-stairs-02. I also bought the stairs descend motion: https://marketplace.reallusion.com/stairs-descend.

I bought those quite a while ago from the Reallusion Market Place. They were cheap, so it's OK.

AlbinosGambit (3/30/2020)

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Hi again.

I took a brief look at the animations and looked at the user´s YouTube video demonstrating this. To me, it seems very artificial and not to realistic, to fast and kind of sluggish....hmmm... But thanks for the tip though

animagic (3/31/2020)

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I know, they are not great. I thought I had explained that in my earlier post.

animagic (3/31/2020)

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What I do is this:

1. Download the basic Mixamo character in T-pose: X bot for woman and Y bot for man. (So this depends on what your target character will be (man or woman). This may not be necessary to have both, but that is what I do. )
I chose X-bot as an example. 



2. Import into 3DXchange. Accept the default settings. The Mixamo character will be recognized automatically.



3. Click Yes and also click Yes at the next prompt:



4. You will now have the X-bot in 3DXchange. You will use it as target for the MIxamo motions you will import.



5. In Mixamo apply the Ascending Stairs motion to the character you just exported (X-bot in my case).

6. Download the motion only as FBX; make sure Without Skin is selected.



7. Back in 3DXchange you will now import the just downloaded motion, as follows:



Select Import, which will open the file browser, where you can select the exported motion (Ascending Stairs in this case). At the prompt select the default settings.

NOTE: It is best to export at 30 fps from Mixamo and import at 12 fps for most motions.

8. The motion will be added to the Motion Library:



9. With the motion selected, click Add to Perform. The motion will be added to the Perform Editor list.

10. Now the delete the T-pose motions from the Motion Library, as we are only interested in the Ascending Stairs motion.

11. You can repeat Steps 6 through 9 to add more motions to the Perform list.

12 When done, select File => Export (Ctrl+E). You will get a dialog:



Make sure nothing is selected under Geometry Settings.
Under Animation Settings, the motion(s) to be exported will be listed. You can keep the default file destination or choose your own. Then click OK. 

toystorylab (3/31/2020)

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Both "descending stairs" from Mixamo are useless.
They seem to implement foot contact, no way to get rid of that.
At least I have no idea how to make them usable...

toystorylab (3/31/2020)

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Hm, the result of that video you posted is quite shaky, can be done better.
But this is 4 little stairs, not a big challenge...
And upstairs
As I don't need walking downstairs for the moment, can't spend more time on this...
Maybe someone else will chime in...

AlbinosGambit (3/31/2020)

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Hi ToyStoryLab, you meant this video was shaky?

toystorylab (3/31/2020)

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Yo, watch 2:01, the "contact" foot is shaking, goes up and down...

animagic (3/31/2020)

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I did come across stair ascending and descending problems. What I have done in past is not to show the feet, so you work with the camera to hide imperfections. The camera is really your friend if things are not perfect, as they often are.

In my example, I imported the Ascend motion. I then used it in iClone and it worked pretty good. It is a short motion and what you need to do is copy the clip, paste it, and right-click select Align Root for the copy. That way, the character will continue to move up. Repeat this until you have enough to move up the stairs. To make the movement fit with the stairs I adjusted the height of the stairs as that is easier than adjusting the motion (I didn't try that).

Rampa (3/31/2020)

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There is a motion modify option that will let you adjust the motion. You may be able to get it matching the stairs a bit better.
https://manual.reallusion.com/iClone_7/ENU/Content/iClone_7/Pro_7.4/09_Animation_Timeline_Editing/Modifying_and_Fixing_Motions.htm?Highlight=modify

Rampa (3/31/2020)

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Hi Albin,

I thought I would see what I can do on this challenge, as it is a big one that I have attempted to solve in the past using different methods that were never quite satisfactory.

So to adjust the stride length, use the exaggeration sliders. Move them both the same amount to keep upper body and lower body in sync. It effects the entire motion, including the distance traveled, so it will be tricky. I have only just had a look at it, so no tutorial yet.

But you can actually the stairs and scale them a little on the Y axis (green) to do some additional fine tuning. You may need to reposition them a little if you scale them.

animagic (3/31/2020)

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What I do is this:

1. Download the basic Mixamo character in T-pose: X bot for woman and Y bot for man. (So this depends on what your target character will be (man or woman). This may not be necessary to have both, but that is what I do. )
I chose X-bot as an example. 



2. Import into 3DXchange. Accept the default settings. The Mixamo character will be recognized automatically.



3. Click Yes and also click Yes at the next prompt:



4. You will now have the X-bot in 3DXchange. You will use it as target for the MIxamo motions you will import.



5. In Mixamo apply the Ascending Stairs motion to the character you just exported (X-bot in my case).

6. Download the motion only as FBX; make sure Without Skin is selected.



7. Back in 3DXchange you will now import the just downloaded motion, as follows:



Select Import, which will open the file browser, where you can select the exported motion (Ascending Stairs in this case). At the prompt select the default settings.

NOTE: It is best to export at 30 fps from Mixamo and import at 12 fps for most motions.

8. The motion will be added to the Motion Library:



9. With the motion selected, click Add to Perform. The motion will be added to the Perform Editor list.

10. Now the delete the T-pose motions from the Motion Library, as we are only interested in the Ascending Stairs motion.

11. You can repeat Steps 6 through 9 to add more motions to the Perform list.

12 When done, select File => Export (Ctrl+E). You will get a dialog:



Make sure nothing is selected under Geometry Settings.
Under Animation Settings, the motion(s) to be exported will be listed. You can keep the default file destination or choose your own. Then click OK. 

Rampa (3/31/2020)

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Sorry. That was me thinking faster than I type. I did mean scaling, but hopefully we do not need to do that at all.

Lets try and consolidate to the challenge thread for further discussion, as I think it will be seen by more people.

animagic (3/31/2020)

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I did come across stair ascending and descending problems. What I have done in past is not to show the feet, so you work with the camera to hide imperfections. The camera is really your friend if things are not perfect, as they often are.

In my example, I imported the Ascend motion. I then used it in iClone and it worked pretty good. It is a short motion and what you need to do is copy the clip, paste it, and right-click select Align Root for the copy. That way, the character will continue to move up. Repeat this until you have enough to move up the stairs. To make the movement fit with the stairs I adjusted the height of the stairs as that is easier than adjusting the motion (I didn't try that).