Indigo Renderer Forum

Code: Select all

	[...bleh...]

	//SCALE
	SceneExportRealValue("scale", 1.0, model);

	//MESH_NAME
	SceneExportStringValue("mesh_name", meshname.GetFileString(), model);

	//Motion blur
	Real strength = 1.0;
	LONG num_keyframes_inbetween = 0;

	if (ObjectHasMotionBlurTag(obj, strength, num_keyframes_inbetween)) {
		//experimental mb stuff
		SceneExportMoBlurMatrix(model, m); //exports the identity matrix with applied scale

		LONG fps = mDoc->GetFps();

		BaseTime time = BaseTime(m_frame, fps);

		//get topmost object with animation, neccecary so all childs will be correctly animated
		//if found, animate
		BaseObject *topmost = GetTopmostAnimated(obj);
		if (topmost) mDoc->AnimateObject(topmost, time, ANIMATE_QUICK);

		Real rotation;
		Vector axis;
		Vector position;

		position = obj->GetMg().off;
		MatrixToRotAxis(obj->GetMg(), &axis, &rotation);
		SceneExportKeyframe(0.0, model, rotation, axis, position); //exports the first keyframe

		//some stuff to get along with c4d animation stuff. only whole keyframes can be
		//exported for now - getting values inbetween is a bit tricky
		Real m_exposure = 0.3333333;
		Real newFrame = (Real)m_frame + (fps * m_exposure);

		Real step = 1 / Floor((fps * m_exposure) + 0.5);

		//export all other keyframes
		for (int i = m_frame+1; i < newFrame-0.5; i++)
		{
			time = BaseTime(i, mDoc->GetFps());

			topmost = GetTopmostAnimated(obj);
			if (topmost) mDoc->AnimateObject(topmost, time, ANIMATE_QUICK);

			position = obj->GetMg().off;
			MatrixToRotAxis(obj->GetMg(), &axis, &rotation);
			SceneExportKeyframe(step*i, model, rotation, axis, position);
		}

		time = BaseTime(newFrame, mDoc->GetFps());
		
		topmost = GetTopmostAnimated(obj);
		if (topmost) mDoc->AnimateObject(topmost, time, ANIMATE_QUICK);

		position = obj->GetMg().off;
		MatrixToRotAxis(obj->GetMg(), &axis, &rotation);
		SceneExportKeyframe(1.0, model, rotation, axis, position);
	} else { //if no motion blur, normal rotation
		//POS/ROTATION/SCALE
		SceneExportPosAndMatrix(model, m);
	}

Code: Select all

MatrixToRotAxis(obj->GetMg(), &axis, &rotation);

Code: Select all

void MatrixToRotAxis(const Matrix &mm, Vector *v, Real *w)
{
	Matrix m = mm;
	// MatrixVectoren MUESSEN normiert sein!!! ---vec's must be normalized
	m.v1=!m.v1;
	m.v2=!m.v2;
	m.v3=!m.v3;

	// Winkel berechnen ---calculate angles
	*w = ACos((m.v1.x+m.v2.y+m.v3.z-1.0)/2.0);

	// Achse berechnen ---calc axis
	v->x= m.v2.z-m.v3.y;
	v->y= m.v3.x-m.v1.z;
	v->z= m.v1.y-m.v2.x;
	*v = !(*v);

	if (*v==0.0)
	{
		*v = Vector(0.0,1.0,0.0);
		*w = 0.0;
	}
}