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    moving origin of rotating texture map in 3D particles actor

    How To... ?
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    • D
      dritter last edited by

      I have a question about the 3D particles actor. Can the relative XY origin for rotating a texture map (using vertex rot input) be moved? I would like the image to rotate around the bottom of the texture map rather than the middle. I can do this by locating the texture map on a larger alpha channel in Photoshop, but it would be more versatile if the origin can be moved in Isadora.
      Many thanks, Don

      Izzy 2.6.1 USB | MBP (mid 2015) 2.8 GHz i7, 16GB, AMD Radeon R9 | OSX 10.11.6
      Corsair One, 3.7 GHz i7, 32GB, GTX1080 | Windows 10

      bonemap 1 Reply Last reply Reply Quote 0
      • bonemap
        bonemap Izzy Guru @dritter last edited by bonemap

        @dritter said:

        rotating a texture map (using vertex rot input)

         Hi,

        It appears to me that you might use the x,y inputs towards the bottom of the 3D Particles along with the vertex rotate input. However if the objective is to rotate the texture within the bounds of the particle an animated texture map in a movie wrapper or as an image matrix might work for you.

        I am not sure that this is really what you are after.

        There is a patch here. 3D Vertex Rotate.zip

        best wishes,

        bonemap

        http://bonemap.com | Australia
        Izzy STD 4.2 | USB 3.6 | + Beta
        MBP 16” 2019 2.4 GHz Intel i9 64GB AMD Radeon Pro 5500 8 GB 4TB SSD | 14.5 Sonoma
        Mac Studio 2023 M2 Ultra 128GB | OSX 15.3 Sequoia
        A range of deployable older Macs

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        • D
          dritter last edited by

          bonemap, I am sorry if my question was unclear. I know that the texture map is moved using x,y,z inputs at the bottom of the actor. I want to rotate the map around around the Z axis using the 'vertex rot' input, but the point is at the bottom of the map not in the middle.

          all the best,
          Don

          Izzy 2.6.1 USB | MBP (mid 2015) 2.8 GHz i7, 16GB, AMD Radeon R9 | OSX 10.11.6
          Corsair One, 3.7 GHz i7, 32GB, GTX1080 | Windows 10

          bonemap 1 Reply Last reply Reply Quote 0
          • bonemap
            bonemap Izzy Guru @dritter last edited by bonemap

            @dritter said:

            the point is at the bottom of the map not in the middle.

            Hi again,

            I don’t see a way to do this without reorienting the x and y to give the appearance of the rotation point being at the bottom of the particle shape - as in what I have proposed. Other x,y translation of the particles is then controlled by the ‘translate’ inputs - there is quite possibly some other way perhaps somebody else can see a solution for you?

            Best wishes

            Bonemap

            p.s. Thanks for the inspiration I now have another really useful 3D Particles generator to play with - too much fun!


            http://bonemap.com | Australia
            Izzy STD 4.2 | USB 3.6 | + Beta
            MBP 16” 2019 2.4 GHz Intel i9 64GB AMD Radeon Pro 5500 8 GB 4TB SSD | 14.5 Sonoma
            Mac Studio 2023 M2 Ultra 128GB | OSX 15.3 Sequoia
            A range of deployable older Macs

            1 Reply Last reply Reply Quote 1
            • D
              dritter last edited by

              thank you bonemap. For your working on this. The only solution I came up with is to create a texture map that is twice the required height, with the bottom half being an empty alpha channel. The pivot point will then be at bottom of the bitmap image.

              Don

              Izzy 2.6.1 USB | MBP (mid 2015) 2.8 GHz i7, 16GB, AMD Radeon R9 | OSX 10.11.6
              Corsair One, 3.7 GHz i7, 32GB, GTX1080 | Windows 10

              1 Reply Last reply Reply Quote 1
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