Irrlicht Engine

USE.IRR

thanks I understand you.

USE.IRR

Yes I see

But

Code: Select all

matrix2 *=matrix1;

give one rotation not two.

USE.IRR

core::matrix4 matrix1;
matrix1.setRotationDegrees(planetAxisRotation);

core::matrix4 matrix2;
matrix2.setRotationDegrees( core::vector3df(0, pRrotation, 0) );

matrix1 *= matrix2;

planet->setRotation( matrix1.getRotationDegrees() );

The code is working.
Why using two rotation (matrix1 ...

USE.IRR

Well, probably not. I think your code would not work if you rotate your planet axis.

I'm sure, my code is working fine and my planet do the two rotations : the relative rotation (arround it self) and the global rotation (arround the star).

Your code animates the cube by the result of the two ...

USE.IRR

with this code every thing will go OK.

...
f32 rotationSpeed2 = 1.1f;
f32 rotation2 = 0.0f;
...

...
rotation2 += rotationSpeed2;
...

...
core::matrix4 matrix2;
matrix2.setRotationDegrees(core::vector3df (0 ,rotation2 , 0) );

planet->setRotation(matrix2.getRotationDegrees());
...

:lol:

USE.IRR

arras >> thank you,:D

but I want the make the planet turn around its axis like in the picture.

USE.IRR

Is this impossible?

USE.IRR

thanks

USE.IRR

Hi all, I am using this code to have the animation shown in the picture. But I can not see the correct animation.

f32 gradius = 1.0f;

//Current rotation
matrix4 currentRotation;
currentRotation= node1->getRelativeTransformation();
//Constant rotation1
matrix4 constRotation1;
//SUN Axis ...

USE.IRR

arras >> mmmmmmmmmmmeeeh (a kiss)

Others thanks.

USE.IRR

void CSceneNodeAnimatorFlyCircle::animateNode(ISceneNode* node, u32 timeMs)
{
if ( 0 == node )
return;

const f32 t = (timeMs-StartTime) * Speed;
//the problem is here
[b]core::vector3df circle(Radius * sinf(t), 0, Radius * cosf(t));[/b]
circle = circle.crossProduct ( Direction );

node ...

USE.IRR

I can not have a correct animation with this:

Code: Select all

scene::ISceneNodeAnimator* anim = smgr->createFlyCircleAnimator(core::vector3df(0,1,0),20.0f,0.0005f,core::vector3df(1,0,0));

box1_node->addAnimator(anim);
anim->drop();

is there a bug in createFlyCircleAnimator?

USE.IRR

Hi All;

How can I make a node turn arround an axis?

I can just rotate it around him self

USE.IRR

nice idea,

It can be done with an mpeg library.
I will try do it.

Hope do it

USE.IRR

Hi all;

How can I Save Irrlicht Context to Video file? (mpeg or others). (without any software)

I need what classes can provide such service in irrlicht.

Irrlicht Engine

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[SOLVED] Turn arround an Axis?

Saving Irrlicht Context to Video file?