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bloom shader #145957
08/05/07 14:51
08/05/07 14:51

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HI.has someone a bloom shader, without using sylex?

Re: bloom shader [Re: ] #145958
08/05/07 14:57
08/05/07 14:57
Joined: Oct 2005
Posts: 4,771
Bay City, MI
lostclimate Offline
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lostclimate  Offline
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Posts: 4,771
Bay City, MI
you need pro or the render back buffer to mesh dll to do this.

Re: bloom shader [Re: lostclimate] #145959
08/05/07 15:04
08/05/07 15:04

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i know,but A7 com has render to texture.also has someone a bloom shader?

Re: bloom shader [Re: ] #145960
08/05/07 15:09
08/05/07 15:09
Joined: Oct 2005
Posts: 4,771
Bay City, MI
lostclimate Offline
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Bay City, MI
ok, well in that case, there are some things you have to do, its not just a shader its also rendering a quad that fits the camera right and then getting the right amount of contrast.


edit. I one time made a bloom shader a long time ago with a nice bloom/blur effect that is reminescent of the modern prince of persia games effects but it got lost on my old hard drive that crashed....

Last edited by lostclimate; 08/05/07 15:11.
Re: bloom shader [Re: lostclimate] #145961
08/05/07 18:24
08/05/07 18:24
Joined: Oct 2003
Posts: 4,131
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Matt_Aufderheide Offline
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A bloom effect normally requires also a blur shader. Here is the basic process:

1) copy the backbuffer to a smaller render-target
2) do a pass where you black the pixels that are darker than a certain threshold
2) blur it using a a blur shader (gaussian blur, simple multitap, etc)
3) render the final pass over a the normal screen using additive blending

Re: bloom shader [Re: Matt_Aufderheide] #145962
08/05/07 19:27
08/05/07 19:27
Joined: Mar 2006
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Hummel Offline
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ok - this steps are clear, but how to add the postprocessing effekt to the screen using the render-to-textur feature from Acknex (A6 pro/A7 pro,com)?
I upgraded my A6com to A7com so its a new feature for me...

Re: bloom shader [Re: Hummel] #145963
08/05/07 20:03
08/05/07 20:03

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i cant programming shaders.so has anyone a blomm shader that he will contibute?

Re: bloom shader [Re: ] #145964
08/06/07 06:47
08/06/07 06:47
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You need the backbuffer for this, so you can't just plug it in A6 or A7 because you don't have access to it. You need to use Matt's DLL or sylex. Otherwise it aint going to happen.


BASIC programmers never die, they GOSUB and don't RETURN.
Re: bloom shader [Re: bstudio] #145965
08/06/07 07:20
08/06/07 07:20
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Posts: 4,771
Bay City, MI
lostclimate Offline
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well he can use render to texture as well but the working quad system is a little more than a plug and play code.

Re: bloom shader [Re: lostclimate] #145966
08/06/07 09:52
08/06/07 09:52

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i know how to use a fx file in gs.has some on a fx file?

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