RE: Friday Flashback #345
The tessellation control is the ability to see the wireframe of the geometry after displacement calculations. that feature does exist in mental ray, however, Softimage chose not to implement it as it required the use of contour shaders which Softimage also did not implement until XSI 7 or later. Refresh optimization was implemented as "pixel tagging" which worked in early versions of Sumatra/XSI. It was very buggy and removed around XSI 2 or 3. In order for the feature to work, shaders had to implement specific routines to communicate with the renderer core. There were also problems for certain types of shaders, such as rayswitch or sprite where the shader would either modify or bypass the ray counters throwing off mental ray's internal state of what was happening. This lead to situations where pixels would either be falsely tagged or not tagged at all. In the end, it was more work to figure out which pixels to tag than to just render the images brute force. the idea to tag the pixels was more for cases where you'd render the entire scene in a single pass. With the introduction of passes, pixel tagging wasn't as high of a priority. Matt Date: Sat, 28 Jul 2018 00:30:15 +0200 From: “Sven Constable” Subject: RE: Friday Flashback #345 To: "'Official Softimage Users Mailing List. Nice read. The features were amazing at the time (many of them are still by today). However, two features were not accomplished I think :) User Interface “Tesselation Control: Display of tesselated geometry used in rendering (e.g. for displacement mapping)” Maybe they referred to subdees. If so, it's kinda correct but didn't include displacement mapping by mental ray. Interactive Rendering “Refresh Optimization: Re-renders only the pixels affected by tuning” I don't think so. Mental ray introduced a feature called “incremental echo”, to speed up scene translation. Was demoed by someone from Softimage and I still have the video. But it was several years after Twister was announced. Also that feature wasn't per pixel based, to my knowledge. Other than that it still amazes me how ahead of it's time Softimage was. Sven -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
RE: Friday Flashback #345
Nice read. The features were amazing at the time (many of them are still by today). However, two features were not accomplished I think :) User Interface "Tesselation Control: Display of tesselated geometry used in rendering (e.g. for displacement mapping)" Maybe they referred to subdees. If so, it's kinda correct but didn't include displacement mapping by mental ray. Interactive Rendering "Refresh Optimization: Re-renders only the pixels affected by tuning" I don't think so. Mental ray introduced a feature called "incremental echo", to speed up scene translation. Was demoed by someone from Softimage and I still have the video. But it was several years after Twister was announced. Also that feature wasn't per pixel based, to my knowledge. Other than that it still amazes me how ahead of it's time Softimage was. Sven From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Matt Lind Sent: Friday, 27 July 2018 23:25 To: softimage@listproc.autodesk.com Subject: Re: Friday Flashback #345 Here’s the accompanying Twister sales sheet available at the Softimage booth the day the announcement was made: https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mantom.net_softimage_twister.pdf=DwIGaQ=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA=YZ8W3_z6Wn9joYN_dinSYOJCCmchxGKHWxqZLrK2UT8=uDoV-VYfSiPqzm3TY2KRAeooDBbl07SVJtSPnCY-u8k= Matt Message: 1 Date: Fri, 27 Jul 2018 14:20:07 -0400 From: Stephen Blair Subject: Friday Flashback #345 To: "Official Softimage Users Mailing List. https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_forum_-23-21forum_xsi-5Flist=DwIGaQ=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA=YZ8W3_z6Wn9joYN_dinSYOJCCmchxGKHWxqZLrK2UT8=AbDpsZ8dOvxvs3pESZbWEezFXvY3OyUGi12OHz5UDpU=; Message-ID: Content-Type: text/plain; charset="utf-8" Microsoft Press Release: Softimage ?Twister? Enters Beta at SIGGRAPH 1998 "We fully expect Twister to set a new benchmark in the industry as the first truly interactive renderer.? https://urldefense.proofpoint.com/v2/url?u=https-3A__wp.me_powV4-2D3tW=DwIFaQ=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA=QYcYWoNbob1A5lZlC43uf-jpsP5Zjvzg32yUvllMBUg=Bi6I7AtZv7QlBlQAqD8m8BsYG2brKkBMjKOtaMQO-Gk= -- next part -- An HTML attachment was scrubbed… URL: http://listproc.autodesk.com/mailman/private/softimage/attachments/20180727/854990cc/attachment-0001.html <https://urldefense.proofpoint.com/v2/url?u=https-3A__u7507473.ct.sendgrid.net_wf_click-3Fupn-3D4NJpoo1h1GOdyqBB3sJimai-2D2BQC-2D2FGskUXuPx0XSl6rNdr5Gg0XscjA7dk-2D2BFQcvfCTrPyNVTe21bXODeNjelkdcj7ocyG7Qzl-2D2FhzVov6tKwKiHo-2D2By5Gc72Uz7Pb1BR8hSkbny37XlpF5jrBD9lM-2D2Bk54Q98-2D2BaKzehkQ7XqUI2Mtjn4-2D3D-5FdhxBdI84JeZ90JuzQ58Sn3QQDvL3V7floK5c-2D2FY0hrbhEyfWExGfqj1Pd15iz3yL6ihqs7sN4iGkfUXqTOciicNkEix4N-2D2FFIdwR-2D2BTJlBpQCOZUa-2D2BGwsWgSNV3Xzbb007cP7TX1ph25xvftx8xEsdZCqEIdMeABOaKspBUlIzK7K3PeBUnoTcHpYiCKezViKg-2D2BjuR3p3BhJthSjkm9xGiQDBoUVrrkoj3rpGFTe6RjZwY-2D3D=DwIFaQ=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA=Oq8d57dDGU3Fawxp91MkYP3Fz3VuScrjs0vcDtEggkQ=GHG_7s7fjtm8x8EhDQU1qtB4_ZtysbrStO4whjNNEdg=> -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with “unsubscribe” in the subject, and reply to confirm. <https://urldefense.proofpoint.com/v2/url?u=https-3A__u7507473.ct.sendgrid.net_wf_open-3Fupn-3DdhxBdI84JeZ90JuzQ58Sn3QQDvL3V7floK5c-2D2FY0hrbhEyfWExGfqj1Pd15iz3yL6ihqs7sN4iGkfUXqTOciicCty8jlzW7Ly-2D2FhkZ1XQUIZ5aSiSSHZS71HaSFJPb6s7izhHPmjcN8XpFNOtobeQmNgcq5xBJX5TCOWs7i1fC0j5vVVjt2AEvy1PHcx4k8bBl3vu2JVYK-2D2Btb2WQFuekNpagQI1ud-2D2F5zeVDAuE8xUe230-2D3D=DwIFaQ=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA=Oq8d57dDGU3Fawxp91MkYP3Fz3VuScrjs0vcDtEggkQ=VMi2pTqU8W2bft_sTb7dCkGzZHgtNMegHjtYL2O2fGc=> -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
Re: Friday Flashback #345
Here’s the accompanying Twister sales sheet available at the Softimage booth the day the announcement was made: https://u7507473.ct.sendgrid.net/wf/click?upn=5SmYwFIJXHmC5X9wAP0G6mg4oLGBuQENbeDkYXezg3m6vjHxJcC6rUMd8QE2MtqzI-2F9k-2BWBXKW27XRR1WxPwQbX9jjJbw57aMI7fvZB3rSESDquECTsqSY46C9bBIiK61wa6FetSii6vEKfaGKAG5nS9GO7NluaqwyXJExbWhCiROv9vj93KO7Ns0nVHVPsFZMtpdPwyMRrTyqRKIN4d0jnU4X1hYLXAtv3ugr3DEBFjHHvA8pouuv7Z6mmZLT42cwLmTcCXVoOL6YB2qz-2BWodOZCeveJO9s5smpsAzGKQtV3sPXDD4IonWTMtBogXBUAlf6i8gbGlj-2F4ej98-2By3UJcD2Dx7QN-2FjiSws7kuKz8ndbynli67TMdiPr73RNSu0oumjtx1URGDht6yVf1Acdw-3D-3D_a6oQc7tnfcb0GKvoO27fPkrQ0ATQyF1SDBXJOg7-2FbuTyczslZWG-2Fj5ghTLHLJzNhUQv-2FwAX5NGN6k9r-2FUYPxGWapu4vuZWAtTquJFgyQA9dmIgMcHPYz20Eq-2BerSI93uOzQVUdX9msY2nl3PAcFUpP7S8vXvZDie5mHMHt-2Fm4VMAytylLWTfAn3Xj8zARz3QzZYG3X-2F2OozeDRt2wTCvVPDGaH8iiLEvs2KR73yPElQ-3D Matt Message: 1 Date: Fri, 27 Jul 2018 14:20:07 -0400 From: Stephen Blair Subject: Friday Flashback #345 To: "Official Softimage Users Mailing List. https://u7507473.ct.sendgrid.net/wf/click?upn=5SmYwFIJXHmC5X9wAP0G6mg4oLGBuQENbeDkYXezg3m6vjHxJcC6rUMd8QE2MtqzowgyFFK4aAsDEzrdrVTV4Q6qbgbc-2FgnnpGob6G467zR75G56-2BuWz1AMtPXsoVdDXV-2BcQeKP7tI8SfI-2Feh9je47atZhc-2BurJ60RvbttIed4dAEMQ7ZLXe4P8CjxI3MuVA-2BC1YI4W9cuRTblUkTV0ThqzAfVQBEMZKrNTAdc7ACQuSit3iaW3y0fVt0pWCCM1YEkq9w4SeiTQoxADGO666O0lt-2BEHcLIgs9FogOixvSKF3THu6MkRH5yQ3bXya3AlojKNy0i682JdfkQnCinDPcNF911SqV7938FS3Ofl-2FuW0NeDPrVF1wy3buYDqgeSeFYoE-2FPzqi7DcIr40Dr7wY4g-3D-3D_a6oQc7tnfcb0GKvoO27fPkrQ0ATQyF1SDBXJOg7-2FbuTyczslZWG-2Fj5ghTLHLJzNhUQv-2FwAX5NGN6k9r-2FUYPxGYvSs04SNRXPo-2FerFOx0dy1wNN9qPNLamNF2NCk87BDe8sondOUaMRHBngPMQl5LX3OFu7Xln1bKwm7xhgOSKJ-2BOnHkT0YnW6reS8-2FmJrKog7m6st2PJuUuoUrcrzQIXeAh24grbyUB-2FYFCdryoTF1A-3D; Message-ID: Content-Type: text/plain; charset="utf-8" Microsoft Press Release: Softimage ?Twister? Enters Beta at SIGGRAPH 1998 "We fully expect Twister to set a new benchmark in the industry as the first truly interactive renderer.? https://u7507473.ct.sendgrid.net/wf/click?upn=5SmYwFIJXHmC5X9wAP0G6mg4oLGBuQENbeDkYXezg3m6vjHxJcC6rUMd8QE2Mtqz-2FXo36ChPR9BZMic-2BoJT8MbfWxXKnjONyU2ErQkmGoFzzyh5Z7S-2BUHEC0gizR7KJvltBjKzd6-2F1sXCtmYG2AAm43lLzzWyfIuD0v5j8Zid2JrWBpy7VvRi3IiT5Wn5xiQyaNyrpSieJhCDTlHeBCl5VkfD56qKiSYg4GPXAc7XG8mlehxe37yFnF-2BnWq-2FOyw70Q7-2F6d-2FbssWlv-2BSAELb9q6qSqYFfBjsrYAHlc4cwW6FxLbjWqfuL3eeLKqhsxUrot3kPzbfWyyJm8c2nOY2I0OpLVOwzHbmUHw041w0LJTa9D-2Bnn395fbFXCnnnVRjX9_a6oQc7tnfcb0GKvoO27fPkrQ0ATQyF1SDBXJOg7-2FbuTyczslZWG-2Fj5ghTLHLJzNhUQv-2FwAX5NGN6k9r-2FUYPxGUW7wmWSyIyZXUC6Rl8uJQUn79LXZlT9sO-2FhQIiYkjoKEkknvdbXYK8Rk2O-2F7nzE9Gl28XqURq7rAoeNu-2FYXZJRCWUecj0GMWTVqfxy9KT1EWwqlEHJVqug752cgDm8v8wkZARv8v7kCUzrzSqKnojo-3D -- next part -- An HTML attachment was scrubbed… URL: https://u7507473.ct.sendgrid.net/wf/click?upn=4NJpoo1h1GOdyqBB3sJimai-2BQC-2FGskUXuPx0XSl6rNdr5Gg0XscjA7dk-2BFQcvfCTrPyNVTe21bXODeNjelkdcj7ocyG7Qzl-2FhzVov6tKwKiHo-2By5Gc72Uz7Pb1BR8hSkbny37XlpF5jrBD9lM-2Bk54Q98-2BaKzehkQ7XqUI2Mtjn4-3D_a6oQc7tnfcb0GKvoO27fPkrQ0ATQyF1SDBXJOg7-2FbuTyczslZWG-2Fj5ghTLHLJzNhUQv-2FwAX5NGN6k9r-2FUYPxGZWltUAxAM-2Ffs3xkUELLkfJNJ9EVK2FtuH3UMhZD4fB6oFpqnuhZm4lVt-2BHG-2B07Uz3A7ZEItXA21NoWeabGD0seHQAELpaAG96Y9EsJJVPlBkV1ZzWNh2pOuBgf7pmvoNSaDQdTnfHd17eFHWBW9RhA-3D -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
