I'm new to blender, How to fix the physic?

[UJYM]

Hello, I'm new to blender, and i wanna learn blender

my blender ver is 4.2.1 LTS (Steam)

I had a problem with the physic, can someone tell me why? all replies will be appreciated

Desktop.2024.09.04.-.19.21.22.05.mp4

[fmnijk]

In Blender, for physics simulation, you need to play it. It will automatically simulate the rigid body physics. There is a play button in the timeline.

[UJYM]

I see, Thank you!!

[UJYM]

Also, can we make a poses with physic enabled? it take me much time to make a poses manually

[rintrint]

Blender doesn't have real-time rigid body physics. So you have to disable the physics, make a pose, enable physics, and then bake the physics again.

You can hide the cloth and parts of the hair when making a pose, especially when they are too large or too long. Actually, you can create a proxy mesh - an agent with fewer vertices and faces. Use that agent instead. When making a pose, you need to ensure the animation preview can achieve 30 fps (if it's not a static pose). After everything is done, turn off the agent and turn on the original mesh. This can be done using collections. In the outliner, there are checkboxes for folders that allow you to completely turn off something.

[UJYM]

Awesome... I didn't know much about blender cuz im still new..

is there a helpfull tutorials or links (youtube or etc)?

[rintrint]

https://www.youtube.com/watch?v=0m0tRBUeL5w

In the ending of this video, he shows how to use collections to switch between the proxy model and the original model.
But the way he creates the proxy model does take time. It's a bit advanced, but the concept is the same.

Blender has some methods to quickly reduce faces, but the effects are not as good as his method.
Compared to reducing faces, his method can truly break through the limitations of face count.

[rintrint]

If you're using official models, the polygon count usually isn't too high, so there won't be significant issues. However, if you're using modified models, they often have a much higher polygon count than official models because many additional elements have been added. This can lead to a substantial decrease in Blender's FPS.

For beginners, I suggest starting with official models and focusing on scenes with fewer characters, such as ones with only one or two people. This way, the performance issue won't be too much.

Additionally, avoid using too many lights, as this will make rendering very slow.

[UJYM]

Thank you very much