 # Help python wave simulation

Hi, I’m very new to Blender and to this forum.
I have to simulate a sea wave with this equation:

``````z=A*sin(k*y-w*t)
``````

so I create with python a mesh, varying x,y coordinates values from -20 to 20 and then add z

``````
def wavegen(dim,t):
vertici=[]
faces=[]
k=0.0403
w=0.6283
A=0.8216
h=-10
resolution=0.1
lung=int(dim/resolution)
for count in range(-lung,lung+1):
z=-A*math.sin((k*count*resolution)-w*t)
tmp=(-lung*resolution,count*resolution,z)
vertici.append(tmp)
for count in range(-lung,lung+1):
z=-A*math.sin((-k*count*resolution)-w*t)
tmp=(lung*resolution,-count*resolution,z)
vertici.append(tmp)
for count in range(0,4*lung+2):
max=4*lung+1
if count&lt;max:
A=count
B=count+1
C=max-(count+1)
D=max-count
tmp=(A,B,C,D)
faces.append(tmp)
return vertici, faces

``````

For each t (time) I make a new mesh

``````
#...
mymesh = bpy.data.meshes.new(name)
myobject = bpy.data.objects.new(name, mymesh)
mymesh.from_pydata(verts,[],faces)
mymesh.update(calc_edges=True)
#...

``````

so for example if t range from 0 to 10, I have 11 objects.
To animate the scene, every frame I show only 1 object hiding the remaining

``````
#...
invi=bpy.data.objects[name]
invi.hide=True
invi.keyframe_insert(data_path="hide", frame=frm)
#...

``````

Long story short, it works, but when I go to render it is very very slow.
I think there is a smartest way to do that.
Is there another way to animate the mesh without create a new mesh every frame?

Nevermind I solved the problem.
I insert hide_render property so every frame it render only one mesh.

``````
bpy.data.objects[name].hide_render=True
bpy.data.objects[name].keyframe_insert(data_path="hide_render", frame=frm)

``````