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Chris Burrows



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29th August, 2011 at 15:31:09 -


Is it possible to make an object NOT effected by an alpha channel even though it is behind an object with an alpha channel?

For example: I have these 2 objects below.

Image (Object A)

Image (Object B)

Image
Object A is behind Object B, thus it is darkened by the Aplha Channel in object B.

Image
But I would like it to look like this. Not effected by the Alpha Channel.

This can easily be achieved by moving Object A in front of Object B, but I can't do this (long story).

Any ideas?

 
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Jon Lambert

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29th August, 2011 at 16:50:37 -

Since I can't think of anything, I reckon it's time to hear(read: read) a long story.

 
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Chris Burrows



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29th August, 2011 at 17:25:09 -

Hahahaha! The long story is just that Object A must be behind Object B because there is another object (Object C).

Object B is the rooms shadow, which is in front of everything.
Object C is the players character which must be behind the shadow.
Object A is the 'select square thing' which I want to be behind the character, but not effected by the shadow.

So... Object B (shadow) is at the front and Object C (player) is behind it.
But... I want Object A (square) to be behind Object C (player) but in front of Object B (shadow) (or simply just NOT darkened by the alpha channel of the shadow)

Sorry if that is really confusing.

 
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HaZe



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8th September, 2011 at 14:16:21 -

You could try making a placeholder for "Object A", and then set the real object's position to overlap it, and order it to the front...

 
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UrbanMonk

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8th September, 2011 at 19:10:45 -

It's just not going to happen that way. It's kinda impossible to do.

UNLESS! You split the "select square thing" into 4 separate objects. One for each corner of the selector. Then just handle their Z-placement separately.

Eg. If player is overlapping "corner" make "corner" invisible.

 
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Chris Burrows



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8th September, 2011 at 19:24:01 -

I tried that, but because of shadows caused by various alpha channels, the 4 objects would at times be different shades and it didn't look good.

Anyhow, none of this is a problem because I have decided not to use "Select Square Things". They cluttered the screen and were ugly. I just use them for doorways now and it is very stylish. I'll post an alpha version of my project once I finish the first zombie and finish a few character animations.

 
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