Slick Forums

For example, if you want to make a circular Radar like u can see in lot of games, u just apply a circular shape as a mask. For tiled terrain transitions it would be very fast and very nice looking, you would just have to draw your masks (all the different kinds of transition, for example a rounded shape for transition, or just a linear transition ,...) on photoshop or whatever then you can apply them on the first image (grass for example), then u draw the result on the second texture (stone for example) and you get easyly the expected transition.
If it's badly explained, here is what it looks when it is done tx to photoshop:




That would incredibly save memory for tiled terrains and permit some things impossible to do like the circular radar.

Alpha mapping, ok, tis a good idea. Anyone up for giving it a go? I can take it but the lead time is looking to be a while at this rate.

Kev

Would be great to see accually, I want to use alpha maps to controll light in my game, This will be a top layer on my tile map that will only use alpha maps, to this I want to be able to controll the color of the alpha, so that I can use different kinds of lights with the same alpha image.

So it wont be for transitions on the above example but just a way to at some places block the light and on some places enhance it, Would be coolt to be able to pic different kinds of blend mode to this as well, the GL blendmodes would be great to have!

Ok, here some sort of psudo code to explain the functions some:

Blend b = new Blend(color, BLEND_MODE);
alphamap.drawAlpha(x,y, b);
b.setColor(color);
b.setBlendMode(BLEND_MODE);

something like that hehe, dont know if you understand what I mean but im open for enquiering

This just went in. In next build.



EDIT: This is probably slightly more impressive:





Kev

This is simply AMAZING.
Dunno whether it was hard to achieve that or not.
Anyway I'm really amazed
Certainly a very useful feature.

Should note is puts an extra requirement on the opengl card for Slick, alpha in the frame-buffer. If that turns out to be an issue we'll have to rethink and maybe move to some other means of getting the same effect.

Kev

Wow, now that's super sweet! I'll be ready to work on my lightning thingies when the next release is up then! Gr8 work kev!

Is there any way to know if it's supported by the graphics card ?

It appears not - I've just added code that copes if it fails - and resets to normal. I can add an indicator to let you know if thats happened.

I've not seen a card that it fails on yet tho.

Only works for AppGameContainer at the moment - this is all still very new. Great effect though - good idea guys!

Kev