u/Panda2231q

Hi, I’m new to Rive and I’m trying to build a character body-composition system controlled by two continuous values:

• muscularity: 0–1
• fatness: 0–1

I have four vertex-deformation timelines that use the same character paths/topology:

• BASE
• MUSCULAR
• FAT
• FAT_MUSCULAR

The idea is to interpolate between the four corner poses using an Additive Blend state.

I created these View Model properties:

muscularity
fatness
wMuscular
wFat
wFatMuscular

I then created three Formula Converters:

wMuscular =
muscularity * (1 - fatness)

wFat =
(1 - muscularity) * fatness

wFatMuscular =
muscularity * fatness

Because I could not apply converters directly inside the Additive Blend rows, I created an artboard-level Property Group called Bodyweights. It contains:

muscularWeight
fatWeight
fatMuscularWeight

Each Property Group value is bound Target → Source to the corresponding View Model output using its Formula Converter.

The calculated values appear to be mathematically correct. For example:

muscularity = 0.25
fatness = 0.23

wMuscular ≈ 0.19
wFat ≈ 0.17
wFatMuscular ≈ 0.06

My Additive Blend is intended to use:

MUSCULAR     → wMuscular
FAT          → wFat
FAT_MUSCULAR → wFatMuscular

However, the actual character does not interpolate correctly.

The strange behavior is:

• When the State Machine is paused, the character returns to the normal/average design pose.
• When I press Play, the character immediately becomes fat.
• Increasing wFatMuscular manually makes the character look more correct.
• Decreasing wFatMuscular makes the character become fatter again.
• The timelines now appear to be mixed together, and none of the individual body poses behaves correctly.
• I can open the individual timelines, but I can no longer move/edit the path vertices as expected.
• It feels like the State Machine preview or another animation is continuing to override the vertices.
• Removing the second State Machine layer did not fix it.
• Removing the BASE Mix by Value entry also did not fix it.
• I previously saw negative weights, but that happened when the source values went outside the 0–1 range. With both inputs restricted to 0–1, the weights remain non-negative.

The four source timelines may currently contain transitions from the base pose to the final pose rather than single-frame/static pose animations. I am unsure whether Additive Blend requires each source animation to contain its target pose at frame 0.

I am using Rive Beta 0.8.5390.

There is also an unrelated script error still visible:

Unknown global 'context'; consider assigning to it first

This error comes from an older CharacterBuildController script. I do not know whether it can interfere with the State Machine or vertex editing.

My questions are:

1. Is this the correct way to perform bilinear blending between four vertex-deformed poses?
2. Should every Additive Blend timeline be a static, one-frame target pose?
3. Can an active or paused State Machine preview continue overriding vertices while editing an individual timeline?
4. How can I completely reset the evaluated State Machine pose in the editor?
5. Why would raising the combined FAT_MUSCULAR weight visually undo some of the FAT deformation?
6. Is there a better architecture for a continuous skinny/average/fat and muscular character system?

Any advice would be greatly appreciated.

I am creating a character in rive which is supposed to be either fat, skinny or muscular and I would need help on how i could do that. The idea is that i could do transitions from one to another so that it can be synced with the person who is using it.

When I tried to give one of the characters bones and move them everytihng kept falling apart despite trying to weight the parts correctly.
Thank you for help

Hi,

Me and 3 friends decided to travel to China next year and I wanted to ask some questions.

First of all is our timing good? We decided on going there in the second or third week of October and will be there for about 2 weeks. I heard that first week is not too good to go as there is a lot of people there.

We will be in Shenzhen the last few days of our visit, and I was wondering if it was possible to see some of the facilities of the big companies located there. In addition to just the stores we wanted to see some of the manufacturing or something simmilar - we wanted to have a peek into how they make their products.

We plan to see the famous places - great wall, forbidden palace, oriental tower, some temples, a bit of nature, etc. But we are open to suggestions if there are some places that are not as well known but worth visiting.

And the last thing that i wanted to know was how is it with street food. Is it safe for europeans to eat it or will we get diarrhea? Is local food there simmilar to what we get here in chinese restaurants or are the restaurants in the west adjusted for us?

Thank you

what happens to me

What I am trying to do

I am trying to make a stickman model. In the tutorial he said that i mus click e and than s to do what he did, but it didn't work for me the way it did for him.