cool trick is you can also use a Card3d, instead of a Scanline+Card, at the end to speed it up a bit
On 13 September 2012 08:29, Jason P Nguyen <[email protected]> wrote: > yeah, pump to 4K & change the filter to Keys helps. but like Howard said, > it always degrading. > > Thanks, > > > > > > On Wed, Sep 12, 2012 at 12:24 PM, Howard Jones <[email protected]>wrote: > >> Also it always applies some degrading, changing size minimises it. ie it >> doesn't concatenate >> >> >> Howard >> >> ------------------------------ >> *From:* Ari Rubenstein <[email protected]> >> *To:* Nuke user discussion <[email protected]> >> *Sent:* Wednesday, 12 September 2012, 19:20 >> *Subject:* Re: [Nuke-users] scanline render uv proj and applyMaterial >> degrading the orginal image >> >> You need to apply a Constant at a higher resolution, plug it into your >> scan line that outputs the UV. >> >> Your problem is that the texture your using, when fit into UV space has >> now lost resolution because of the smaller uv region it occupies. By >> rendering the uv higher res it'll retain the source texture's full >> resolution (with minimal filtering to degrade it). >> >> Ari >> Blue Sky >> >> Sent from my iPhone >> >> On Sep 12, 2012, at 1:51 PM, Jason P Nguyen <[email protected]> >> wrote: >> >> > Has anyone realize that after unwrapping the uv through scanline render >> & use that as a material with the ApplyMaterial node & render back out with >> another scanline render node would degrading the image's quality? >> > I"m attaching 2 images here if anyone want to check. >> > >> > below is the script: >> > _________________________________ >> > >> > >> > set cut_paste_input [stack 0] >> > version 6.3 v8 >> > BackdropNode { >> > inputs 0 >> > name BackdropNode33 >> > tile_color 0x7171c600 >> > label "just for testing,\nI plugged the mat into the uv to check the >> quality of the image.\n(obviously for realworld shot, it would just be a >> roto or paint, not the entire image)" >> > note_font_size 12 >> > selected true >> > xpos 7256 >> > ypos -6502 >> > bdwidth 668 >> > bdheight 572 >> > } >> > push $cut_paste_input >> > Dot { >> > name Dot170 >> > selected true >> > xpos 7817 >> > ypos -6419 >> > hide_input true >> > } >> > NoOp { >> > name mmCAMERA4 >> > selected true >> > xpos 7783 >> > ypos -6398 >> > } >> > set Nfe724ef0 [stack 0] >> > Dot { >> > name Dot175 >> > selected true >> > xpos 7894 >> > ypos -5987 >> > hide_input true >> > } >> > push $Nfe724ef0 >> > push 0 >> > Project3D { >> > inputs 2 >> > name Project3D2 >> > selected true >> > xpos 7640 >> > ypos -6398 >> > } >> > Card2 { >> > translate {740 -15 499.9987793} >> > rotate {-90 90 0} >> > uniform_scale 2000 >> > control_points {3 3 3 6 >> > >> > 1 {-0.5 -0.5 0} 0 {0.1666666865 0 0} 0 {0 0 0} 0 {0 0.1666666865 0} 0 >> {0 0 0} 0 {0 0 0} >> > 1 {0 -0.5 0} 0 {0.1666666716 0 0} 0 {-0.1666666716 0 0} 0 {0 >> 0.1666666865 0} 0 {0 0 0} 0 {0.5 0 0} >> > 1 {0.5 -0.5 0} 0 {0 0 0} 0 {-0.1666666865 0 0} 0 {0 0.1666666865 0} 0 >> {0 0 0} 0 {1 0 0} >> > 1 {-0.5 0 0} 0 {0.1666666865 0 0} 0 {0 0 0} 0 {0 0.1666666716 0} 0 {0 >> -0.1666666716 0} 0 {0 0.5 0} >> > 1 {0 0 0} 0 {0.1666666716 0 0} 0 {-0.1666666716 0 0} 0 {0 0.1666666716 >> 0} 0 {0 -0.1666666716 0} 0 {0.5 0.5 0} >> > 1 {0.5 0 0} 0 {0 0 0} 0 {-0.1666666865 0 0} 0 {0 0.1666666716 0} 0 {0 >> -0.1666666716 0} 0 {1 0.5 0} >> > 1 {-0.5 0.5 0} 0 {0.1666666865 0 0} 0 {0 0 0} 0 {0 0 0} 0 {0 >> -0.1666666865 0} 0 {0 1 0} >> > 1 {0 0.5 0} 0 {0.1666666716 0 0} 0 {-0.1666666716 0 0} 0 {0 0 0} 0 {0 >> -0.1666666865 0} 0 {0.5 1 0} >> > 1 {0.5 0.5 0} 0 {0 0 0} 0 {-0.1666666865 0 0} 0 {0 0 0} 0 {0 >> -0.1666666865 0} 0 {1 1 0} } >> > name Card1 >> > selected true >> > xpos 7640 >> > ypos -6350 >> > } >> > Dot { >> > name Dot217 >> > selected true >> > xpos 7674 >> > ypos -6323 >> > } >> > set Nfe6c1350 [stack 0] >> > Constant { >> > inputs 0 >> > channels {rgba.red rgba.green rgba.blue none} >> > format "2048 2048 0 0 2048 2048 1 square_2K" >> > name Constant19 >> > label "square 2K" >> > selected true >> > xpos 7360 >> > ypos -6285 >> > } >> > ScanlineRender { >> > inputs 2 >> > projection_mode uv >> > output_motion_vectors_type accurate >> > MB_channel forward >> > name UV_MAP2 >> > selected true >> > xpos 7510 >> > ypos -6249 >> > } >> > push $Nfe6c1350 >> > Dot { >> > name Dot236 >> > selected true >> > xpos 7784 >> > ypos -6235 >> > } >> > ApplyMaterial { >> > inputs 2 >> > name ApplyMaterial8 >> > selected true >> > xpos 7750 >> > ypos -6086 >> > } >> > Constant { >> > inputs 0 >> > channels {rgba.red rgba.green rgba.blue none} >> > format "2253 1188 0 0 2253 1188 1 --OBL_DCI_2k (+10%)" >> > name Constant20 >> > label "2K 10% OverScan" >> > selected true >> > xpos 7568 >> > ypos -6026 >> > } >> > ScanlineRender { >> > inputs 3 >> > ztest_enabled false >> > output_motion_vectors_type accurate >> > MB_channel forward >> > name CAM_RENDER8 >> > selected true >> > xpos 7750 >> > ypos -5990 >> > } >> > >> > <after_uv_unwrap.png> >> > <original_plate.png> >> > _______________________________________________ >> > Nuke-users mailing list >> > [email protected], http://forums.thefoundry.co.uk/ >> > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> >> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> > > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >
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