} // end of Awake()
// ---------------------------------------------------------
private void Update() {
controlPolyLine.positionCount = 4;
Matrix4x4 splineMatrix = SplineParameters.GetMatrix(splineType);
// pass all necessary variables to the Vertex Shader:
//
// spline matrix in Hermite form:
material.SetMatrix("_SplineMatrix", splineMatrix);
// control points for spline curve rendering:
material.SetVector("_Control0", control0.position);
material.SetVector("_Control1", control1.position);
material.SetVector("_Control2", control2.position);
material.SetVector("_Control3", control3.position);
// step between subsequent t parameter values for curve:
float step = (float)1.0 / (float)(verticesOnCurve - 1);
material.SetFloat("_Step", step);
material.SetColor("_Color", splineColor);
// to draw the enclosing polyLine, set control line points:
//
controlPolyLine.SetPosition(0, control0.position);
controlPolyLine.SetPosition(1, control1.position);
controlPolyLine.SetPosition(2, control2.position);
controlPolyLine.SetPosition(3, control3.position);
} // end of Update()
} // end of Awake()
// ---------------------------------------------------------
private void Update() {
controlPolyLine.positionCount = 4;
Matrix4x4 splineMatrix = SplineParameters.GetMatrix(splineType);
//rotate camera
//center view and orbit
camera.transform.LookAt(center);
rotationCam += .5f * Time.deltaTime;
camera.transform.position = cam + (new Vector3(Mathf.Sin(rotationCam), 0, Mathf.Cos(rotationCam)) * 6f);
//animate
//bounce between tow points
control0.position = Vector3.MoveTowards(control0.position, cp0, Time.fixedDeltaTime * .1f);
if(control0.position == cp0){
cp0 = new Vector3(cp0.x * -1, cp0.y, cp0.z);
}
//rotate around a centeral axis with a defined radius
rotationCp1 += 1.5f * Time.deltaTime;
control1.position = cp1 + (new Vector3(Mathf.Sin(rotationCp1), Mathf.Cos(rotationCp1), 0) * 1f);
control2.position = Vector3.MoveTowards(control2.position, cp2, Time.fixedDeltaTime * .3f);
if(control2.position == cp2){
cp2 = new Vector3(cp2.x, cp2.y * -1, cp2.z);
}
rotationCp3 += 1f * Time.deltaTime;
control3.position = cp3 + (new Vector3(Mathf.Sin(rotationCp3), Mathf.Cos(rotationCp3), 0) * .5f);
//bounce light source between two points
light.transform.position = Vector3.MoveTowards(light.transform.position, lDest, Time.fixedDeltaTime * .1f);
if(light.transform.position == le){
lDest = ls;
}
else if(light.transform.position == ls){
lDest = le;
}
// pass all necessary variables to the Vertex Shader:
//
// spline matrix in Hermite form:
material.SetMatrix("_SplineMatrix", splineMatrix);
// control points for spline curve rendering:
material.SetVector("_Control0", control0.position);
material.SetVector("_Control1", control1.position);
material.SetVector("_Control2", control2.position);
material.SetVector("_Control3", control3.position);
// step between subsequent t parameter values for curve:
float step = (float)1.0 / (float)(verticesOnCurve - 1);
material.SetFloat("_Step", step);
material.SetColor("_Color", splineColor);
//pass light vars; camera pos, light color, light pos
material.SetColor("_Light_Color", light.GetComponent<SpriteRenderer>().color);
material.SetVector("_Light", light.transform.position);
material.SetVector("_Cam", camera.transform.position);
//determine if vertex or fragment shader is computing
if(renderer == RendererType.vertex){
material.SetFloat("_VorF", 1);
}
else{
material.SetFloat("_VorF", 0);
}
// to draw the enclosing polyLine, set control line points:
//
controlPolyLine.SetPosition(0, control0.position);
controlPolyLine.SetPosition(1, control1.position);
controlPolyLine.SetPosition(2, control2.position);
controlPolyLine.SetPosition(3, control3.position);
} // end of Update()