Flash as interactive texture with alpha channel viacopyPixels

[eone]

I want to use Flash member as interactive 3D texture.
When I copy Flash sprite image to texture (via copyPixels) a lose the alpha
channel of Flash movie.

theMember = member(1, 1)
pImage = image(380,600,32)
pImage.copyPixels((the stage).image, pImage.rect, sprite(flashsprite).rect)
theTexture2 = theMember.newTexture("flash2",#fromImageObject,pIm age)
theShader = member(1, 1).shader("flash_mat")
theShader.texture = theTexture2
theShader.useDiffuseWithTexture = 0
Help please how to prevent this (losing of flash transparency)?

[openspark]

You need to set the #renderFormat property of your texture to a value which
takes into account the alpha channel. You will get the best quality display
with #rgba8888. This comes at the price of greater memory usage and slower
performance:

-- <snipped code>
theTexture2 = theMember.newTexture("flash2",#fromImageObject,pIm age)
theTexture2.renderFormat = #rgba8888
-- <more snipped code>

Other values which activate the alpha channel are:

#rgba5551 -- alpha is opaque or transparent
#rgba4444 -- limited range of colors and transparency

[foq]

That didn't work for me. If the Flash Sprite ink is set to background
transparent, the final image will include the part of the stage beneath the
flash sprite.

Should I place the Flash Sprite above a specific place of the stage? or place
something underneath it?

I wish I could use the flash cast member instead of the sprite, but, then the
texture wouldn't be updated, right?

[necromanthus]

Originally posted by: eone
I want to use Flash member as interactive 3D texture.
When I copy Flash sprite image to texture (via copyPixels) a lose the alpha
channel of Flash movie.
This is not a good idea because the frame rate is going down too much ("SWF +
copyPixels" = a method hungry for resources).
Export each SWF keyframe as bitmap (if not too many ...) and include them in
the W3D file.
cheers

[foq]

Thank you for replying.

The problem is that the flash is interactive... so it's impossible to export every keyframe, as the images change according to the user's interaction.