johnl3d Posted December 20, 2007 Share Posted December 20, 2007 I was trying to show as speed increased there was faster tire rotation so I made the rotation in an action and gave it stride length then constrained the tire to a path. the first second I set the ease at 15% so the tire would rotate slow as it moved then at the end of the 3rd second I had ease 100% so it would race to the end.I added some streaks to help show the movement as well as a marking on the tire. Now I ask does this look right? rate.mov rate.zip I was doing this because of a question I received about expressions and I thought this would be easier Its a little rough but I am half asleep Johnl3d tink Quote Link to comment Share on other sites More sharing options...
Hash Fellow robcat2075 Posted December 20, 2007 Hash Fellow Share Posted December 20, 2007 Showing things that cycle faster than the camera can capture them is a classic animation problem. The sharpness of the white section is working agains the impression of speed, I think. I suppose that white part is a patch, but you might consider applying a decal that has been pre-blurred in a circular fashion to build some "motion" into each frame. Quote Link to comment Share on other sites More sharing options...
John Bigboote Posted December 20, 2007 Share Posted December 20, 2007 Yeah...there's not too a lot to reference. Did you calculate the length of the stride properly? (3.142) Quote Link to comment Share on other sites More sharing options...
Admin Rodney Posted December 20, 2007 Admin Share Posted December 20, 2007 This is a little unrelated to what you are investigating but for those focused on the end results more than the math they may want to consider: A means to counter the illusory effect that Robert mentions regarding movement and timing is to introduce reference points where the eye can track the perceived speed of the object. For instance, if a square block, building or other object is placed in the scene the viewer automatically perceives the reference of speed related to the moving object. Then it becomes a matter of adjusting the effect to your particular needs. Without the reference point the eye is often confused. Just as it can be in the real world. You can recreate reality to a large extent in CG but if a shortcut will do just as well... Quote Link to comment Share on other sites More sharing options...
johnl3d Posted December 20, 2007 Author Share Posted December 20, 2007 Thanks for the comments I know I needed some reference but it was getting late and the math I thought I could sneak by..I plan to tweak ut later but the ideas will help. Quote Link to comment Share on other sites More sharing options...
johnl3d Posted December 21, 2007 Author Share Posted December 21, 2007 Okay I cleaned up the math a little and set up some reference points here is the wheel moving a a constant speed down the course rate_1.mov I am now going to try adjusting the speed through the use of the ease on the path and will post it here . I will also double the time . rate_2.mov Okay the first secoond the card travels 15% of path then zooms to the finsh The camera stays at a steady pace and so it gets ahead of the wheel at the beginning rate_2.zip Quote Link to comment Share on other sites More sharing options...
Kamikaze Posted December 21, 2007 Share Posted December 21, 2007 Would motion blur might help ? Quote Link to comment Share on other sites More sharing options...
johnl3d Posted December 21, 2007 Author Share Posted December 21, 2007 Mike motion blur would but this was a test and just an idea for someone else. I did apply some blur on the last render Quote Link to comment Share on other sites More sharing options...
Jentham2000 Posted December 21, 2007 Share Posted December 21, 2007 They both look great to me..... Where do you come with these ideas? I've noticed that you come up with a lot of new ideas or projects to work on. Quote Link to comment Share on other sites More sharing options...
johnl3d Posted December 21, 2007 Author Share Posted December 21, 2007 Ideas ...sometimes people email me with a question...sometimes a question appears on the forum...sometimes I get an idea after viewing something ...part of this is because I am not great at modeling etc but enjoy playing with all the parts of AM thats probably why I was nicknamed the Tinkering Gnome Johnl3d_TG Quote Link to comment Share on other sites More sharing options...
Jentham2000 Posted December 22, 2007 Share Posted December 22, 2007 I think these are great skills to have..... I'm just a newbie and have a long way to go. The modeling will come in time, as with any skill, it takes time to develop. Have you ever thought about bundling all of your projects in a training dvd or similar? Quote Link to comment Share on other sites More sharing options...
Kamikaze Posted December 22, 2007 Share Posted December 22, 2007 I love all your tests and experiments, makes me try some myself .... and they are always helpful. Thanks again John.. Quote Link to comment Share on other sites More sharing options...
johnl3d Posted December 22, 2007 Author Share Posted December 22, 2007 some of my projects from a website I had were included on the extra dvd. the website had a lot but the site vainshed when the person giving me space vanished. If I have time I plan to rebuild a site now I just have a couple of qt's up www.johnl3d.com. I aslo have a couple of other old sites at least one at geocities do a search for johnl3d and you should find them. I am currently working at a new job (think U-verse) and so do not have much time to create until I get my bio-clock reset Thanks for the compliments and if you need a dvd full of old projects... johnl you can also find a lot of stuff by searching my name on the forum..if there is an old link to johnl.inform.net let me know and I can upload the files Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.