Help rotating objects

[ifcaro]

Hi, I'm an amateur programmer who is doing a modified version of Llibplanar but I have a couple of problems that I am not able to solve, move and rotate objects relatively.

To move and rotate objects using the following functions:

Code: Select all

void objectTranslate(Object3D *obj,float x,float y,float z){
	
    obj->translation[0][0] = x;
    obj->translation[0][1] = y * -1.0f;
    obj->translation[0][2] = z;
	
}

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void objectRotate(Object3D *obj,float x,float y,float z){
	
    obj->rotation[0][0] = -x;
    obj->rotation[0][1] = -y;
    obj->rotation[0][2] = -z;
	
    // cuidado con pasarnos por encima
    while(obj->rotation[0][0] > PI) obj->rotation[0][0] -= PI_2;
    while(obj->rotation[0][1] > PI) obj->rotation[0][1] -= PI_2;
    while(obj->rotation[0][2] > PI) obj->rotation[0][2] -= PI_2;

    // y por debajo
    while&#40;obj->rotation&#91;0&#93;&#91;0&#93; < -PI&#41; obj->rotation&#91;0&#93;&#91;0&#93; += PI_2;
    while&#40;obj->rotation&#91;0&#93;&#91;1&#93; < -PI&#41; obj->rotation&#91;0&#93;&#91;1&#93; += PI_2;
    while&#40;obj->rotation&#91;0&#93;&#91;2&#93; < -PI&#41; obj->rotation&#91;0&#93;&#91;2&#93; += PI_2;

&#125;

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void objectRender(Object3D *obj){

	objectReset(obj);
	
	// aplicamos la rotacion a la matriz
    libVu0RotMatrix(obj->localToWorld[0],
                    obj->localToWorld[0],
                    obj->rotation[0]);					
    libVu0RotMatrix(obj->localToWorldRotation[0],
                    obj->localToWorldRotation[0],
                    obj->rotation[0]);
					
	// posicion
	libVu0TransMatrix(obj->localToWorld[0], obj->localToWorld[0], obj->translation[0]);

	actualobj=NULL;
    objectRender_Calc(obj);
    objectRender_Draw(obj);
}

EDIT: It seems that I get it :D

[LBGSHI]

Glad we could be of help :)

[ifcaro]

I released it http://forums.ps2dev.org/viewtopic.php?p=75725#75725