phy start, phy end, phy clear and phy something wrong?

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Splurk

18

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Joined: 8th Apr 2006

Location: France/Montpellier

Posted: 7th Oct 2008 15:17

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Hello

Can you tell me what's wrong with the two following programs please? Both of them don't reach main loop and quit without any message!

sync on
sync rate 60

`FIRST STEP OF THE TEST

dim wheels(4) as integer

phy start

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
tstart = timer()
tend = timer()
while tend-tstart < 5000
   text 0, 0, "switch to next scene in " + str$(5000 - tend + tstart) + " SCENE 1 loop"
   tend = timer()
   phy update
   sync
endwhile

phy clear
delete object 1

`NOW SHOULD ENTER THE SECOND PHASE OF THE TEST BUT IT CRASHES

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
do
   text 0, 0, " SCENE 2"
   phy update
   sync
loop

phy end

end

+ Code Snippet

sync on
sync rate 60

`FIRST STEP OF THE TEST

dim wheels(4) as integer

phy start

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
tstart = timer()
tend = timer()
while tend-tstart < 5000
   text 0, 0, "switch to next scene in " + str$(5000 - tend + tstart) + " SCENE 1 loop"
   tend = timer()
   phy update
   sync
endwhile

phy clear
delete object 1

`NOW SHOULD ENTER THE SECOND PHASE OF THE TEST BUT IT CRASHES

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
do
   text 0, 0, " SCENE 2"
   phy update
   sync
loop

phy end

end

sync on
sync rate 60

`FIRST STEP OF THE TEST

dim wheels(4) as integer

phy start

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
tstart = timer()
tend = timer()
while tend-tstart < 5000
   text 0, 0, "switch to next scene in " + str$(5000 - tend + tstart) + " SCENE 1 loop"
   tend = timer()
   phy update
   sync
endwhile

phy end
delete object 1

`NOW SHOULD ENTER THE SECOND PHASE OF THE TEST BUT IT CRASHES

phy start

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
do
   text 0, 0, " SCENE 2"
   phy update
   sync
loop

phy end

end

+ Code Snippet

sync on
sync rate 60

`FIRST STEP OF THE TEST

dim wheels(4) as integer

phy start

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
tstart = timer()
tend = timer()
while tend-tstart < 5000
   text 0, 0, "switch to next scene in " + str$(5000 - tend + tstart) + " SCENE 1 loop"
   tend = timer()
   phy update
   sync
endwhile

phy end
delete object 1

`NOW SHOULD ENTER THE SECOND PHASE OF THE TEST BUT IT CRASHES

phy start

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
do
   text 0, 0, " SCENE 2"
   phy update
   sync
loop

phy end

end

Thanks

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HowDo

21

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Joined: 28th Nov 2002

Location: United Kingdom

Posted: 7th Oct 2008 18:56

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Splurk there nothing wrong with what you are doing, but as the physX engine stands at the moment your code will not work, something to do with phy clear and phy delete not working as they should.

You could try posting this demo to Mike Johnson and asking him to see if the engine is at fault or the code.

mean while don't give up just work around what you are doing as you've yet to find out about the vehicle error.

Dark Physics makes any hot drink go cold.

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Splurk

18

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Joined: 8th Apr 2006

Location: France/Montpellier

Posted: 7th Oct 2008 20:29

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Thanks for the suggestion.
In fact this is true, vehicles have a lot of trouble that rigid bodies don't have.
But before going to Mike Johnson let's see how others are dealing with this problem...

For me this looks like a snake biting its tail...
The idea was to create and keep the vehicles in memory as long as the program is running, but:
I cannot apply any rotation on vehicles, as this is just crashing, so:
I went to the idea to place then to build the vehicle, but nothing like "delete object" or "phy delete rigid body" works with vehicles very well, then:
I tried to stop all physic instance with phy clear or phy end but it's crashing with vehicles, that's why:
I'm going back to idea of having vehicles kept in memory as long as it's running... etc etc...

But last time I reported a bug it looks like it sank into oblivion. I'm trying to find a way to work around but I'm missing new ideas!

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HowDo

21

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Joined: 28th Nov 2002

Location: United Kingdom

Posted: 7th Oct 2008 23:08

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Vehicle rotation has to be done just after you've made the object then you make it into a vehicle, even then your wheels will not spin the correct way. for some reason the x axis on a cad system is different to DBPro.

if you find away do tell as I spent some time on it but could not find one apart form getting very confused.

Dark Physics makes any hot drink go cold.

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Splurk

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Joined: 8th Apr 2006

Location: France/Montpellier

Posted: 8th Oct 2008 09:43

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Yeah but the problem with rotation before making the vehicle is that because I cannot delete or reinitialise the vehicle once built, I cannot do a "restart game" without exiting the program.

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HowDo

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Joined: 28th Nov 2002

Location: United Kingdom

Posted: 8th Oct 2008 18:58

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perhaps they do work because I know they where being used in the compo demos, as it was the a way to change from soft to gpu, so if you have the demo code give it a look you might see away to do what you want.

Dark Physics makes any hot drink go cold.

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Kendor

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Joined: 31st Jan 2003

Location: Malta

Posted: 8th Oct 2008 20:53

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The crash seems to happens when you add the wheels for the second time. If you remove that part of code, the vehicle is created again with the wheels already attached to it. Probably something to do with how the vehicle hierarchy is handled. As HowDo said, send everything to Mike, explaining the problem happens when you try to add wheels.

sync on
sync rate 60

`FIRST STEP OF THE TEST

dim wheels(4) as integer

phy start

make object box 50,1000,10,1000
position object 50,0,-200,0

phy make rigid body static box 50

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
tstart = timer()
tend = timer()
while tend-tstart < 5000
   text 0, 0, "switch to next scene in " + str$(5000 - tend + tstart) + " SCENE 1 loop"
   tend = timer()
   phy update
   sync
endwhile

phy end

delete object 1

`NOW SHOULD ENTER THE SECOND PHASE OF THE TEST BUT IT CRASHES

phy start

make object box 1, 512, 64, 64

for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy make rigid body static box 50

phy create vehicle 1

phy add vehicle body 1, 512, 64, 64, 0, 0, 0
`phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
`phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
`phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
`phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
do
   text 0, 0, " SCENE 2"
   phy update
   sync
loop

phy end

end

+ Code Snippet

sync on
sync rate 60

`FIRST STEP OF THE TEST

dim wheels(4) as integer

phy start

make object box 50,1000,10,1000
position object 50,0,-200,0

phy make rigid body static box 50 

make object box 1, 512, 64, 64
for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64

phy create vehicle 1
phy add vehicle body 1, 512, 64, 64, 0, 0, 0
phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
tstart = timer()
tend = timer()
while tend-tstart < 5000
   text 0, 0, "switch to next scene in " + str$(5000 - tend + tstart) + " SCENE 1 loop"
   tend = timer()
   phy update
   sync
endwhile

phy end

delete object 1


`NOW SHOULD ENTER THE SECOND PHASE OF THE TEST BUT IT CRASHES

phy start


make object box 1, 512, 64, 64

for i = 2 to 5 step 1
   make object sphere i, 32
next i
for i = 2 to 5 step 1
   make mesh from object 1, i
   limb = 0
   while limb exist(1, limb)
      limb = limb + 1
   endwhile
   add limb 1, limb, 1
   link limb 1, 0, limb
   delete mesh 1
   delete object i
   wheels(i-1) = limb
next

offset limb 1, wheels(1), 256, -32, 64
offset limb 1, wheels(2), 256, -32, -64
offset limb 1, wheels(3), -256, -32, 64
offset limb 1, wheels(4), -256, -32, -64


phy make rigid body static box 50

phy create vehicle 1

phy add vehicle body 1, 512, 64, 64, 0, 0, 0
`phy add vehicle wheel 1, wheels(1), 256, -32, 64, 32, 0, 0, 1
`phy add vehicle wheel 1, wheels(2), 256, -32, -64, 32, 0, 1, 1
`phy add vehicle wheel 1, wheels(3), -256, -32, 64, 32, 0, 0, 1
`phy add vehicle wheel 1, wheels(4), -256, -32, -64, 32, 0, 1, 1
phy build vehicle 1

position camera 0, 0, -1024
do
   text 0, 0, " SCENE 2"
   phy update
   sync
loop

phy end

end

Theory is when you know something, but it doesn't work. Practice is when something works, but you don't know why.
Programmers combine theory and practice: Nothing works and they don't know why.

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Splurk

18

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Joined: 8th Apr 2006

Location: France/Montpellier

Posted: 8th Oct 2008 21:32

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Ok let's see with Mike then!

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General Reed

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Joined: 24th Feb 2006

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Posted: 16th Oct 2008 19:34

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Yup DarkPhysics is in need of a serious bug route out. Who agrees?

CPU: AMD X2 6000+ 3.0ghz GFX: NVIDIA BFG Geforce 8800GTS 640MB OC-550mhz core RAM: 2048mb

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HowDo

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Joined: 28th Nov 2002

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Posted: 16th Oct 2008 20:53

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I think its coming soon, (how ever long that is). see Lee's video from convention 08.

Dark Physics makes any hot drink go cold.

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Darkowen

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Posted: 24th Oct 2008 00:07 Edited at: 24th Oct 2008 00:09

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As i just posted i had the exact same problem with Phy clear and end..they would just crash my PC, so what i did to clear everything was simply.

+ Code Snippet


For objectclr = 1 to 1000

if object exist(objectclr)=1 then phy delete rigid body objectclr
if object exist(objectclr)=1 then delete object objectclr

next objectclr

instead of letting phy clear clear everything i had to do it manually and this way seemed to work for me

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Splurk

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Joined: 8th Apr 2006

Location: France/Montpellier

Posted: 24th Oct 2008 01:19

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It's not working here... but Mike reported to me that it was more a vehicle specific bug than something else

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Dark Physics & Dark A.I. & Dark Dynamix / phy start, phy end, phy clear and phy something wrong?