Memory Access Violation

Blitz3D Forums/Blitz3D Beginners Area/Memory Access Violation

Kirkkaf13

(Posted 2010) [#1]

I was just playing around with basic 3D commands and got this error anyknow know what it means?

Graphics3D (640, 480, 0, 0)

SetBuffer BackBuffer ()

camera1 = CreateCamera ()
CameraViewport (camera1, 0, 0, 640, 480)

light1 = CreateLight ()

cube1 = CreateCube 
PositionEntity (cube1, 0, 0, 5)

Repeat

	TurnEntity (cube1, .1, .2, .3)
	
	UpdateWorld 
	RenderWorld
	
	Flip

Until KeyHit(1)
End

Ian Caio

(Posted 2010) [#2]

OneHitWonder,

I didnt get any MAV, just a "Entity Does not exist" (set the debug mode on, it will help you catch a few those errors easier. Otherwise you wouldnt have any clue).
Anyways, it happened because you didnt close the "CreateCube" with "()".

And the CameraViewport is unnecessary there. If Im not misunderstood all the cameras created have a viewport from 0,0 to Width,Height. You just need it using multiple cameras to prevent a camera overlay another camera viewport.

cya

Kirkkaf13

(Posted 2010) [#3]

Cheers for your help Ian forgot I didn't have debug mode on, as for the CameraViewPort I just use it for pratice but cheers.

OneHitWonder

Serpent

(Posted 2010) [#4]

One thing I've noticed about functions that is usefull - if you don't put brackets on them in Blitz, they will not return a value. In this case, that means that the variable 'cube1' becomes = to 0.