alpha transparencies to cast shadows

[LordShaitan]

Sorry i dont have your answer, ive came across this problem as of late too. Eeverywhere i looked said use raytrace shadows, but i couldnt et anything to work properly when using a alpha mat from a tga.

Anyone know the answer?

[NNois]

You have to use the sprite node in the render tree, the only limitation is that the sprite node act like an transparent or not transparent (B&W transparency image) it doesn't allow you to have progressive transparency... but very usefull for objects like trees.

PS: Sorry for my poor english :)

[danydrunk]

thank you, actually I noticed that by simple connecting your image (tiff with the alpha channel) to the transparency node in a phong material, it will render the shadows!! very easy and simple, the reason I wasnt noticing the shadows before was because I had the light umbra shadow very low. Thanks anyway !!

[ayan13]

Maybe you can do this.It's my test of tree leaves.（you should have you alpha channel in the picture）
http://bbs.chinavfx.net/attachments/200506/05165346-Sprite03.jpg

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