I read in a pdf by Shahin Rabbani that in order to make everything in Ammo.js deterministic, in particular I should “make sure the following flags in btSolverMode in btContactSolverInfo.h are cleared:

a. SOLVER_RANDMIZE_ORDER

b. SOLVER_USE_WARMSTARTING”

This is for bullet of course and I have not been able to make this work for Ammo.js I just don’t understand which functions I should use to set these parameters.

Also, if anyone has other tips on making Ammo.js deterministic I would be very happy. I want to make a deterministic version of 3d-dice/dice-box for a virtual table top. The problem is that I am very unfamiliar with Ammo.js. I appreciate the help!

I read in a pdf by Shahin Rabbani that in order to make everything in Ammo.js deterministic, in particular I should “make sure the following flags in btSolverMode in btContactSolverInfo.h are cleared:

a. SOLVER_RANDMIZE_ORDER

b. SOLVER_USE_WARMSTARTING”

This is for bullet of course and I have not been able to make this work for Ammo.js I just don’t understand which functions I should use to set these parameters.

Also, if anyone has other tips on making Ammo.js deterministic I would be very happy. I want to make a deterministic version of 3d-dice/dice-box for a virtual table top. The problem is that I am very unfamiliar with Ammo.js. I appreciate the help!

• solver
• bullet
• ammo.js

Share Improve this question Follow asked Nov 20, 2024 at 1:31 Robert WegnerRobert Wegner 17377 bronze badges

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1 Answer 1

Sorted by: Reset to default 1

It seems like

const solverInfo = World.getSolverInfo();
solverInfo.m_solverMode &= ~Ammo.SOLVER_RANDMIZE_ORDER;
solverInfo.m_solverMode &= ~Ammo.SOLVER_USE_WARMSTARTING;

works.