|
1 registered members (AndrewAMD),
801
guests, and 6
spiders. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
Blend 2 animations
#403786
06/26/12 03:43
06/26/12 03:43
|
Joined: May 2009
Posts: 5,370
Caucasus
3run
OP
Senior Expert
|
OP
Senior Expert
Joined: May 2009
Posts: 5,370
Caucasus
|
I've found out that in first half-life there are only two animations for making player aim up and down, so at the end, they just blend between them and that makes character aim at the center. I tried to do something like that myself as well, but I failed by getting some weird results  Here are the screens of the positions: aim up:  aim down:  So what I want now, is to blend between those animations, and make character aim straight forward. I used to blend between three animations, when my model had additional "aim_center" animations.. But I need to do this without a third animation, I wonder maybe someone has an idea. Here is the code I try to use currently:
function blend_test(){
// aim at the center:
my.skill5 = 50;
// main loop:
while(1){
// rest animations:
ent_animate(my, NULL, 0, 0);
// go throw the animations:
my.skill2 += time_step * 2;
// blend between animations via Q and E keys:
my.skill5 += key_q - key_e;
my.skill5 = clamp(my.skill5, 0, 100);
// if skill5 is less than 50 % then we aim up:
if(((50 - my.skill5) * 2) > 0){
my.skill3 = (50 - my.skill5) * 2;
}
// if skill5 is more than 50 % then we aim down:
if(((50 - my.skill5) * 2) < 0){
my.skill4 = abs((50 - my.skill5) * 2);
}
// blend animations:
ent_blendframe(my, my, "aim_up", my.skill2, my.skill3);
ent_blendframe(my, my, "aim_down", my.skill2, my.skill4);
wait(1);
}
}
|
|
|
Re: Blend 2 animations
[Re: Helghast]
#403791
06/26/12 08:32
06/26/12 08:32
|
Joined: Nov 2008
Posts: 946
the_clown
User
|
User
Joined: Nov 2008
Posts: 946
|
For that you better use ent_blendpose. It allows to blend between any number of animation poses. So what you do is simply setting the entities pose parameter to 2, animate the "aim up" part of it, then set the pose parameter to 3, animate the "aim down", then do a ent_blendpose of pose 2 and 3 by 50 percent and finally copy the pose into pose 1 to make it visible. Something like this:
function entityAim(ENTITY* ent, var percent)
{
my = ent;
my.pose = 2;
ent_animate(my,"aimUp",100,ANM_CYCLE);
my.pose = 3;
ent_animate(my,"aimDown",100,ANM_CYCLE);
ent_blendpose(my,2,3,percent);
ent_blendpose(my,1,2,100);
}
Now, if you call this function with a percent value of 50, you should have the straight aiming, if you call it with a percent value of zero you should have aiming up, and with a percent value of 100 aiming down. Any values between these will result in interpolations. However, this is just typed out of nothing, not sure if it works flawlessly. And of course you still have to calculate the percent from somewhere else, and if you wanna have additive animations (to do this while the entity is standing, running, walking, whatever) you'd have to add that. However, this is the rough idea how it could work. EDIT: oh, and this only works with bones as far as I recall, however I guess you're using bones anyways.
Last edited by the_clown; 06/26/12 08:33.
|
|
|
Re: Blend 2 animations
[Re: the_clown]
#403797
06/26/12 10:46
06/26/12 10:46
|
Joined: May 2009
Posts: 5,370
Caucasus
3run
OP
Senior Expert
|
OP
Senior Expert
Joined: May 2009
Posts: 5,370
Caucasus
|
Helghast@ I don't use it, simply cause I don't have such model And I'm not able to animate it myself as well. BTW, it's not that really hard to blend between three animations, from 1 to 2 and from 2 into 3 (up, center, down)  the_clown@ I got the same result already, with the script above (only one "ent_animate" line is missing). Result isn't really good.. It doesn't look as it should And yes, I'm using bone animations. Here is the screen for you guys to see:  Still, I have no idea why thins happens, cause in half-life game, this works perfect.. Any other ideas? And thank you for your time guys. Edit: here is, how should it looks like: 
|
|
|
Re: Blend 2 animations
[Re: 3run]
#403812
06/26/12 19:53
06/26/12 19:53
|
Joined: Oct 2002
Posts: 2,256
Oz
Locoweed
Expert
|
Expert
Joined: Oct 2002
Posts: 2,256
Oz
|
Don't think what you are doing on will work. It will blend down to Aim Down or up to Aim Up, but will never end up at Aim Center like you are trying to achieve. You can blend from Aim Up or Aim Down to Aim Center animation though.
Loco
Professional A8.30
Spoils of War - East Coast Games
|
|
|
Re: Blend 2 animations
[Re: 3run]
#403816
06/26/12 20:11
06/26/12 20:11
|
Joined: Jul 2001
Posts: 6,904
HeelX
Senior Expert
|
Senior Expert
Joined: Jul 2001
Posts: 6,904
|
As the manual says about end_blendpose: Blending by linear interpolation computes intermediate vertex positions rather than intermediate bones angles. Thus it produces the best results when the bones angles of source and target pose are not too different, like less than 90 degrees So, blending by frames is done in the end by interpolation the positions of the vertices rather than rotating actually the bones. That is the reason why your image looks weird. --- Maybe Valve implemented a complex blending by interpolation the bone positions/angles via quaternions and recalculation of the vertices. Nevertheless, you should add more frames inbetween - Gamestudio can't provide IK so it would always look strange, imho.
Last edited by HeelX; 06/26/12 20:12.
|
|
|
Re: Blend 2 animations
[Re: HeelX]
#403818
06/26/12 20:15
06/26/12 20:15
|
Joined: May 2009
Posts: 5,370
Caucasus
3run
OP
Senior Expert
|
OP
Senior Expert
Joined: May 2009
Posts: 5,370
Caucasus
|
Maybe Valve implemented a complex blending by interpolation the bone positions/angles via quaternions and recalculation of the vertices. I hope you are wrong and GS could handle such stuff  Do you mean "aim_center" by "more frames inbetween"?? Thank you all for your time guys, I really appreciate it!
|
|
|
|
