Sprites

Blitz3D Forums/Blitz3D Beginners Area/Sprites

Happy Llama

(Posted 2012) [#1]

How would I take a picture and position it in 3D space? I tried LoadSprite and PositionEntity commands but I get the error "entity does not exist".

Yasha

(Posted 2012) [#2]

"Entity does not exist" means there's first and foremost an error in your logic code. You'll have to post a snippet so we can point that out. It could be that what you're doing with the sprite itself is largely correct.

Happy Llama

(Posted 2012) [#3]

LoadSprite and PositionEntity are the only commands I'm using. Is there a different command for positioning sprites?

Midimaster

(Posted 2012) [#4]

you have to take care about, that the variable that contains the entity is still avaiable when try to position it. This will cause an error:

Graphics3D 800,600
...
Function LoadIt()
     Sprite=LoadSprite("test.png")
End Function

Function MoveIt()
    MoveEntity Sprite,1,0,0
End Function

Better: Declare the variable Sprite as Global:

Graphics3D 800,600
Global Sprite%
...
Function LoadIt()
     Sprite=LoadSprite("test.png")
End Function

Function MoveIt()
     MoveEntity Sprite,1,0,0
End Function

The second reason, why the entity does not exist, ist because the image was not found. You can test this with a additional code line:

if this does not work...

Graphics3D 800,600
Global Sprite%
...
     Sprite=LoadSprite("test.png")
     MoveEntity Sprite,1,0,0

and this works....

Graphics3D 800,600
Global Sprite%
...
     Sprite=LoadSprite("test.png")
     Sprite=CreateSprite()
     MoveEntity Sprite,1,0,0

... the image was not found!

Happy Llama

(Posted 2012) [#5]

The Sprite=CreateSprite() AndMoveEntity Sprite,1,0,0 commands work but when I try to load an image that I have already loaded in my code, I get the same error.

Yasha

(Posted 2012) [#6]

It's probably something like MidiMaster's examples. That's why a snippet is really useful in these cases. We can't tell you what you're doing wrong without seeing it.