{"id":225,"date":"2024-03-21T08:18:16","date_gmt":"2024-03-21T08:18:16","guid":{"rendered":"https:\/\/tensor.agenthub.uk\/?p=225"},"modified":"2024-04-24T08:43:16","modified_gmt":"2024-04-24T08:43:16","slug":"physics-simulate","status":"publish","type":"post","link":"https:\/\/tensorzen.blog\/?p=225","title":{"rendered":"Fixed update with Physics.Simulate in Unity"},"content":{"rendered":"\n

When we set ‘Physics.simulationMode’ to ‘Script’, we can manually control the fixed update using ‘Physics.Simulate’. Here, we observe the differences when ‘Physics.simulationMode’ is placed at the top or bottom of the ‘FixedUpdate()’ function.<\/p>\n\n\n\n

First time:<\/p>\n\n\n\n

<\/circle><\/circle><\/circle><\/g><\/svg><\/span><\/path><\/path><\/svg><\/span>
private<\/span> <\/span>void<\/span> <\/span>Awake<\/span>()<\/span><\/span>\n{<\/span><\/span>\n    Physics.simulationMode <\/span>=<\/span> SimulationMode.Script;<\/span><\/span>\n}<\/span><\/span>\n<\/span>\nprivate<\/span> <\/span>void<\/span> <\/span>FixedUpdate<\/span>()<\/span><\/span>\n{<\/span><\/span>\n    Debug.<\/span>Log<\/span>(<\/span>$"<\/span>{<\/span>this<\/span>.<\/span>transform<\/span>.<\/span>position<\/span>.<\/span>y<\/span>}<\/span>"<\/span>);<\/span><\/span>\n    Physics.<\/span>Simulate<\/span>(Time.fixedDeltaTime);<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
output:<\/p>\n\n\n\n
<\/circle><\/circle><\/circle><\/g><\/svg><\/span><\/path><\/path><\/svg><\/span>
10<\/span><\/span>\n9.996076<\/span><\/span>\n9.988228<\/span><\/span>\n9.976456<\/span><\/span>\n9.96076<\/span><\/span>\n9.94114<\/span><\/span>\n9.917596<\/span><\/span>\n9.890128<\/span><\/span>\n9.858736<\/span><\/span>\n9.82342<\/span><\/span>\n9.78418<\/span><\/span>\n9.741015<\/span><\/span>\n9.693928<\/span><\/span>\n9.642916<\/span><\/span>\n9.587979<\/span><\/span>\n9.529119<\/span><\/span>\n9.466335<\/span><\/span>\n9.399628<\/span><\/span>\n9.328996<\/span><\/span>\n9.254439<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
Second time:<\/p>\n\n\n\n
<\/circle><\/circle><\/circle><\/g><\/svg><\/span><\/path><\/path><\/svg><\/span>
private<\/span> <\/span>void<\/span> <\/span>Awake<\/span>()<\/span><\/span>\n{<\/span><\/span>\n    Physics.simulationMode <\/span>=<\/span> SimulationMode.Script;<\/span><\/span>\n}<\/span><\/span>\n<\/span>\nprivate<\/span> <\/span>void<\/span> <\/span>FixedUpdate<\/span>()<\/span><\/span>\n{<\/span><\/span>\n    Physics.<\/span>Simulate<\/span>(Time.fixedDeltaTime);<\/span><\/span>\n    Debug.<\/span>Log<\/span>(<\/span>$"<\/span>{<\/span>this<\/span>.<\/span>transform<\/span>.<\/span>position<\/span>.<\/span>y<\/span>}<\/span>"<\/span>);<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
output:<\/p>\n\n\n\n
<\/circle><\/circle><\/circle><\/g><\/svg><\/span><\/path><\/path><\/svg><\/span>
9.996076<\/span><\/span>\n9.988228<\/span><\/span>\n9.976456<\/span><\/span>\n9.96076<\/span><\/span>\n9.94114<\/span><\/span>\n9.917596<\/span><\/span>\n9.890128<\/span><\/span>\n9.858736<\/span><\/span>\n9.82342<\/span><\/span>\n9.78418<\/span><\/span>\n9.741015<\/span><\/span>\n9.693928<\/span><\/span>\n9.642916<\/span><\/span>\n9.587979<\/span><\/span>\n9.529119<\/span><\/span>\n9.466335<\/span><\/span>\n9.399628<\/span><\/span>\n9.328996<\/span><\/span>\n9.254439<\/span><\/span>\n9.17596<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
When ‘Physics.Simulate’ is placed at the bottom, not logging the sphere’s initial altitude. ‘Physics.Simulate’ is just a function, the remaining code will be executed after it is completed.<\/p>\n","protected":false},"excerpt":{"rendered":"
When we set ‘Physics.simulationMode’ to ‘Script’, we can manually control the fixed update using ‘Physics.Simulate’. Here, we observe the differences when ‘Physics.simulationMode’ is placed at the top or […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25,26],"tags":[],"class_list":["post-225","post","type-post","status-publish","format-standard","hentry","category-in-english","category-unity"],"_links":{"self":[{"href":"https:\/\/tensorzen.blog\/index.php?rest_route=\/wp\/v2\/posts\/225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tensorzen.blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tensorzen.blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tensorzen.blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tensorzen.blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=225"}],"version-history":[{"count":2,"href":"https:\/\/tensorzen.blog\/index.php?rest_route=\/wp\/v2\/posts\/225\/revisions"}],"predecessor-version":[{"id":275,"href":"https:\/\/tensorzen.blog\/index.php?rest_route=\/wp\/v2\/posts\/225\/revisions\/275"}],"wp:attachment":[{"href":"https:\/\/tensorzen.blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tensorzen.blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tensorzen.blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}