trying to get ssao working, too

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Re: trying to get ssao working, too [Re: JibbSmart] #179811 01/25/08 07:15 01/25/08 07:15
Joined: Oct 2002 Posts: 8,939 planet.earth ello OP Senior Expert
ello OP Senior Expert Joined: Oct 2002 Posts: 8,939 planet.earth	thanks for sharing your ideas, gonna check them out

Re: trying to get ssao working, too [Re: ello] #179812 01/25/08 10:23 01/25/08 10:23
Joined: Jan 2004 Posts: 2,013 The Netherlands E Excessus Expert
Excessus Expert E Joined: Jan 2004 Posts: 2,013 The Netherlands	Could you expand a little on the technique you use? Do you simply take a depth delta between the current and surrounding pixels, or do you actually unproject some points to check for occlusion? How many samples? shader tutorial

Re: trying to get ssao working, too [Re: Excessus] #179813 01/25/08 10:35 01/25/08 10:35
Joined: Nov 2004 Posts: 7,121 Potsdam, Brandenburg, Germany Machinery_Frank Senior Expert
Machinery_Frank Senior Expert Joined: Nov 2004 Posts: 7,121 Potsdam, Brandenburg, Germany	I hope you all can work something out together. You could found a shader-group or 3dgs-shader-foundation And after that you expand the 3dgs templates library and sell a pro template edition for a few dollars. Very impressive. I like this shot very much: Models, Textures and Games from Dexsoft

Re: trying to get ssao working, too [Re: Machinery_Frank] #179814 01/25/08 10:37 01/25/08 10:37
Joined: Dec 2003 Posts: 129 Osnabr�ck, Germany Ready Member
Ready Member Joined: Dec 2003 Posts: 129 Osnabr�ck, Germany	Now thats a nice idea ... I'd definitively buy it Do not underestimate people because they have a low post count... :0

Re: trying to get ssao working, too [Re: Excessus] #179815 01/25/08 11:09 01/25/08 11:09
Joined: Oct 2002 Posts: 8,939 planet.earth ello OP Senior Expert
ello OP Senior Expert Joined: Oct 2002 Posts: 8,939 planet.earth	Excessus, yes.. its based on substracting the blurred depthmap from the unblurred one. thats why the edgebleeding is occuring, here is the nodes image i based it on: http://mpan3.homeip.net/content/resources/ssao1.jpg i need to find a way to prevent that damn edge bleeding... at least i'll see what happens if i get a real smooth blur. could be a nice scene effect

Re: trying to get ssao working, too [Re: ello] #179816 01/25/08 12:22 01/25/08 12:22
Joined: Aug 2006 Posts: 652 Netherlands bstudio User
bstudio User Joined: Aug 2006 Posts: 652 Netherlands	boh_havoc did something about the edge bleeding in his DOF shader, maybe check that out. It was taken from a ATI paper I believe. Nice shader, maybe I should do some shader work too BASIC programmers never die, they GOSUB and don't RETURN.

Re: trying to get ssao working, too [Re: bstudio] #179817 01/25/08 12:47 01/25/08 12:47
Joined: Mar 2006 Posts: 3,538 WA, Australia J JibbSmart Expert
JibbSmart Expert J Joined: Mar 2006 Posts: 3,538 WA, Australia	Quote: Excessus, yes.. its based on substracting the blurred depthmap from the unblurred one. exactly what i'm doing i was quite chuffed when i thought of it but as per usual i'm being beaten to the punch. Frank's shot from ChrisB's is quite nice but looks very much like flash-photography because of the uniform soft-shadow-outline that isn't being chopped up over distance. i spent about 10 minutes on mine today and got severely distracted, but i can always trust ello and BoH_Havoc (and ChrisB it seems) to put up some nice shader work. julz Formerly known as JulzMighty. I made KarBOOM!

Re: trying to get ssao working, too [Re: ello] #179818 01/25/08 12:59 01/25/08 12:59
Joined: Jun 2004 Posts: 655 to your left BoH_Havoc User
BoH_Havoc User Joined: Jun 2004 Posts: 655 to your left	Quote: Excessus, yes.. its based on substracting the blurred depthmap from the unblurred one. thats why the edgebleeding is occuring, here is the nodes image i based it on: http://mpan3.homeip.net/content/resources/ssao1.jpg i need to find a way to prevent that damn edge bleeding... at least i'll see what happens if i get a real smooth blur. could be a nice scene effect Hmmm...interisting. I think i have an idea on how to use your method (which seems to be the real thing instead of my sloppy method) and get rid of the edge bleeding. I'll check it out and let you know if it works out. Shade-C EVO Lite-C Shader Framework

Re: trying to get ssao working, too [Re: BoH_Havoc] #179819 01/25/08 13:01 01/25/08 13:01
Joined: Oct 2002 Posts: 8,939 planet.earth ello OP Senior Expert
ello OP Senior Expert Joined: Oct 2002 Posts: 8,939 planet.earth	i am quite curious about that.. cant await to go on myself tonight www.earthcontrol.de quoted: We want to maintain a clean, decent, American family suited forum look... which means you may post zombies or chainsaw massacres, but no erotic.

Re: trying to get ssao working, too [Re: ello] #179820 01/25/08 13:18 01/25/08 13:18
Joined: May 2005 Posts: 2,713 L�beck Slin Expert
Slin Expert Joined: May 2005 Posts: 2,713 L�beck	It looks quite good so far, I think that I should give it a try as well A few things I found out in the last weeks are, that TargetMap is 32bit rgba with 8bit per channel (I wasn�t able to change that-.-). You can change a bmaps format through bmap_to_format which gives you a few more possibilities for the format. So, if you need a high precision, you will have to render to a bmap and use that one instead of TargetMap. Lite-C Tut. 1 Lite-C Tut. 2 Lite-C Tut. 3 (en) Shader Tutorial (ger) http://www.slindev.com

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