Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: "Chris M. Thomasson" Newsgroups: sci.crypt Subject: Re: xorpng Date: Sun, 5 Jan 2025 13:58:16 -0800 Organization: A noiseless patient Spider Lines: 68 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Sun, 05 Jan 2025 22:58:18 +0100 (CET) Injection-Info: dont-email.me; posting-host="0a9b3b8b2325ec9f2ae161f5c632ce0f"; logging-data="1298991"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+ySu/m6p3KiZIIIPZLua+AN64wNZhOSOo=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:INFbXDX59iIYtExYG4U5kQpWLkY= Content-Language: en-US In-Reply-To: Bytes: 4460 On 1/5/2025 1:27 AM, Stefan Claas wrote: > Chris M. Thomasson wrote: >> On 1/4/2025 4:19 PM, Stefan Claas wrote: >>> Stefan Claas wrote: >>>> Chris M. Thomasson wrote: >>>>> On 1/4/2025 2:10 PM, Stefan Claas wrote: >>>>>> Chris M. Thomasson wrote: >>>>>> >>>>>>> Now, for some fun wrt floating point issues... Have you messed around >>>>>>> with storing data in the n-ary roots of complex numbers? they can >>>>>>> actually create interesting renderings using real user data. >>>>>>> >>>>>>> https://groups.google.com/g/comp.lang.c++/c/bB1wA4wvoFc/m/ozDpUBlTAAAJ >>>>>>> >>>>>>> When you get really bored! ;^) >>>>>> >>>>>> Well, I no longer do Computer Graphics, with formulas, like for fractals >>>>>> etc. , or 3D CGI and 3D printing. Not sure if I ever will return to that. >>>>>> >>>>>> The only interests with graphics is, when it comes to encryption/decryption >>>>>> images. >>>>>> >>>>> >>>>> Fwiw, do you like stereograms? I created some with some of my depth maps >>>>> created in GLSL shaders. Can you see this one: >>>>> >>>>> https://i.ibb.co/gwHwpFL/image.png >>>> >>>> Yes, I can see it. >>>> >>>>> I have an idea about them. What about combining an anaglyph with a >>>>> stereogram such that the observer would need to do the "eye trick" while >>>>> wearing the red and blue glasses? >>>> >>>> I created in 1995, with Photoshop 2.5.1/3.0 a stereo image, which needs >>>> red/blue glasses. :-) I uploaded it to rarible.com as NFT for 50 ETH, >>>> but it is no longer there, nor on my harddrive. :-( It looked really >>>> really cool and was called ORIGAMI. >>> >>> Well,I found it on rarible.com, sorry my mistake. >>> >>> >>> >>> use the maginfying glass to see the original size and use red/blues glasses >>> to see the effect. :-) >>> >> >> :^) I found one of my older anaglyphs I knew I posted before. the left >> hand side should seem to project "into" the screen, and the right one >> out of it. Can you see with with your red and blue goggles? glasses, >> lol. ;^) I had to use two cameras in my scene to do this. One for each >> eye of the observer. >> >> https://i.ibb.co/qm3jg4z/image.png >> >> https://www.facebook.com/photo/?fbid=135603427598664&set=pcb.135603700931970 > > I can not find my glasses. It's been many years since I have used them. > Shit happens! :^) For some damn reason I have mine right by my computer. Strange in a sense. ;^) Now, think of viewing a "special" stereogram that takes the "special" depth map's red and blue color channels into account. I think that viewing the stereogram/anaglyph hybrid thing would simply have to involve the observer doing the eye thing _while_ wearing the glasses. Afaict, it should be able to work. I think so.