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
