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Problems with displacement on quad faces

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  • Problems with displacement on quad faces

    I am playing with textures using the default scene. For the displacement, I am using the following texture:

    Click image for larger version

Name:	4268-bump.jpg
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ID:	887127

    In the default scene I unwrap the cube, I create a new V-Ray node tree and add a Displacement node connected to an Image File node using the previous texture:

    Click image for larger version

Name:	displacement_screen.jpg
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Size:	333.7 KB
ID:	887126

    But the final rendered image shows a weird triangulation issue:

    Click image for larger version

Name:	displacement_render.jpg
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ID:	887128



    But then, if I convert the mesh from quads to triangles:

    Click image for larger version

Name:	displacement_tri_screen.jpg
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Size:	334.8 KB
ID:	887129

    the render is fine:

    Click image for larger version

Name:	displacement_tri_render.jpg
Views:	1
Size:	79.9 KB
ID:	887130


    The issue seems to happen when the mesh is built with quads, but not when using triangles.

  • #2
    Does it help if you subdivide the box a little bit (i.e. give it a few more segments on each side rather than one large quad)?

    Best regards,
    Vlado
    I only act like I know everything, Rogers.

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    • #3
      I think its current exporter problem, here the last Blender build with old exporter (2017.01.19) and Vray Standalone today build (vraystd_adv_35701_x64_vc11_hwlic_27259.rar).
      Displacement mode: 2d. Default cube, 6 quads.

      Click image for larger version

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ID:	866863
      Win11 Pro 64bit, GTX 970, Standalone version: V-Ray Next 4.30.03,

      Comment


      • #4
        You are right, Vlado. Adding more segments solves the issue. Thanks for pointing it!

        EDIT: To my surprise, after installing the latest build (20170306) I can not reproduce the issue anymore... good
        Last edited by enrique.monzo; 06-03-2017, 01:12 AM.

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