animated texture problem

[Medion webforumsuser@macromedia.com]

Textures aren't uploaded into the video RAM until they appear on the screen for the first time. This saves VRAM, but can cause skips when a big new texture suddenly is brought into view for the first time.

To avoid it, create a add a small "texture loading" procedure before everything else in the 3D sprite. It's quite easy:

During the beginsprite handler, create a dummy model (a plane, or a sphere), and place it into view (assign the camera's position and rotation to it, then translate it along the Z axis a bit, so you can view it through the camera).

Now hide all models but that one. How? Simple:

sprite(1).camera.rootNode = sprite(1).member.model("dummy texture loader")

The rootNode command set the basic hierarchy shown by the camera. So, only the dummy model and it's children will be rendered.

Assign a new shader to the dummy model, and set it's blend to 0. Now, cycle it's texture through all avaliable textures in your scene, one per frame, and add a display a nice "PRECACHING" message as an overlay during the process. After it displays all textures, you can delete that model, set the camera.rootNode to member.group[1], to make the scene visible again, and allow the rest of your code to run.

[Yann]

Thx a lot Medion

yann

"Medion" <webforumsuser@macromedia.com> wrote in message
news:bef4ud$2sl$1@forums.macromedia.com...

> Textures aren't uploaded into the video RAM until they appear on the

screen for the first time. This saves VRAM, but can cause skips when a big
new texture suddenly is brought into view for the first time.

>
> To avoid it, create a add a small "texture loading" procedure before

everything else in the 3D sprite. It's quite easy:

>
> During the beginsprite handler, create a dummy model (a plane, or a

sphere), and place it into view (assign the camera's position and rotation
to it, then translate it along the Z axis a bit, so you can view it through
the camera).

>
> Now hide all models but that one. How? Simple:
>
> sprite(1).camera.rootNode = sprite(1).member.model("dummy texture loader")
>
> The rootNode command set the basic hierarchy shown by the camera. So, only

the dummy model and it's children will be rendered.

>
> Assign a new shader to the dummy model, and set it's blend to 0. Now,

cycle it's texture through all avaliable textures in your scene, one per
frame, and add a display a nice "PRECACHING" message as an overlay during
the process. After it displays all textures, you can delete that model, set
the camera.rootNode to member.group[1], to make the scene visible again, and
allow the rest of your code to run.

>
>