Ce site est optimisé pour être consulté depuis un navigateur moderne dans lequel JavaScript est activé.

Skin placeholder export

Iven

Hi guys,

with Spine i made a character rig and its animation with different skins for a game. With the newly added feature of skin placeholder i added a keyed texture swap for the foot within my animation (foot straight, bend foot etc.)

In Spine this works well but after exporting as a .json file my programmers are not able to get access to the files used with the skin placeholder (Unity3D). They can swap any textures that are directly linked to slots but it seems within the .json the hierachie is not going down any further than that.

This results in missing textures during the animations where texture has been swapped using the skin placeholder and since you dont have any access or data from the .json file, we currently do not see a way to fix this.

Has anyone encountered the same issue and maybe even fixed this already? Any known workarounds would be greatly appreciated!

Iven

randeroo

Is this one of the new features in the editor that has yet to make it to the run-times? There are a few things that are being finished up in the editor - and then all the run-times will get updated.

Nate

All the data from the JSON is available in the object model at runtime. Are you setting the skin at runtime before changing the attachments?

Iven

No, we modify an existing skin at runtime - a naked version. The problem is while we have different sets of clothes (like a green outfit and a blue outfit etc) in spine we want to mix them at runtime (e.g. blue shoes, red hat). The problem is, that we can only manually assign textures that are directly(!) assigned to a slot. Any other textures more downwards the hierarchie (like if the slot has a skin placeholder which holds textures that are swapped based on the animation) cannot be accessed. That practically means if i swap a green shoe with a blue shoe, the bend blue version is missing, because it cant be assigned.
According to my coders a possibility to assign the AttachementTimeline class would be helping.

Nate

Assigning texture doesn't really make any sense, it isn't terms used to describe actions taken in the runtimes. Can you describe the problem in more clear terms?

Iven

Hi Nate, sry im no native and probably a little hard to understand.

We have a character with different equipment sets. (made with different skins in Spine)
In the runtime we modify a dummy skin, the active one, with the items (attachments) that the character should have equipped. This needs to be done because items can be cross-equipped.

Now the problem starts where there is attachment swapping based on the animation in Spine - like in the example of a walk animation where the foot attachment is swapped for a bend foot version for several frames to increase the quality of the visual movement.
In this case the foot (attachment(s)) cannot be swapped completely and the bend version is missing.
The reason for this is - as we think - because you can only access the first item behind a slot. This would be the normal version of the foot and not the bend version.

To clarify please find below an extract from the .json and a short code example of what we are trying and is not working:

"skins": {
"Naked": {
"L_foot": {
"lfoot": { "name": "Naked/Naked_lfoot", "x": 122.27, "y": -3.75, "rotation": 14.96, "width": 450, "height": 205 },
"lfoot_bend": { "name": "Naked/Naked_lfoot_bend", "x": 123.47, "y": -4.46, "rotation": 14.57, "width": 450, "height": 205 }
},

skeletonAnimation.skeleton.data.FindSkin("Naked").GetAttachment(L_foot, "lfoot"); // returns attachment
skeletonAnimation.skeleton.data.FindSkin("Naked").GetAttachment(L_foot, "lfoot_bend"); // returns null

Nate

Iven a écrit
the problem starts where there is attachment swapping based on the animation in Spine - like in the example of a walk animation where the foot attachment is swapped for a bend foot version for several frames to increase the quality of the visual movement.
In this case the foot (attachment(s)) cannot be swapped completely and the bend version is missing.
The reason for this is - as we think - because you can only access the first item behind a slot.

A slot is a placeholder for an attachment. At runtime you can put any attachment in the slot, it isn't limited to a list of attachments like it is in Spine.

In Spine under your foot slot, you'd have a skin placeholder foot-straight and another skin placeholder foot-bent. At runtime when you populate your skin with attachments, set the foot and foot-bent attachments in the skin to whatever you want. When the walk animation is applied, it will set the foot slot to either foot-straight or foot-bent. The actual attachments used come from the skin under those names.

To clarify please find below an extract from the .json and a short code example of what we are trying and is not working:

"skins": {
"Naked": {
"L_foot": {
"lfoot": { "name": "Naked/Naked_lfoot", "x": 122.27, "y": -3.75, "rotation": 14.96, "width": 450, "height": 205 },
"lfoot_bend": { "name": "Naked/Naked_lfoot_bend", "x": 123.47, "y": -4.46, "rotation": 14.57, "width": 450, "height": 205 }
},

skeletonAnimation.skeleton.data.FindSkin("Naked").GetAttachment(L_foot, "lfoot"); // returns attachment
skeletonAnimation.skeleton.data.FindSkin("Naked").GetAttachment(L_foot, "lfoot_bend"); // returns null

I assume L_foot is the slot index. Your code should work if that JSON is what you are using. Can you debug the SkeletonJSON loader (eg print out the attachments it puts in the skin) or debug and inspect the Naked skin?