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  1. The Virtual Brain
  2. TVB-1220

Avoid "white" spots in Brain Viewer from light

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.1.2
    • Component/s: None
    • Labels:
      None

      Description

      Discussion with Tim:
      -I noticed this little white parts on the surface for the brainviewer
      which render the light effect. The problem is for some simulations, I
      was actually thinking the area (vertice) was not active because it was
      white, whereas it was actually also active. Could we render differently
      the effect of light or remove it?

      • If you start rotating the surface, don't you get a clear view weather is the
        signal or the light producing the white colour ?
      • yes indeed, once you know it .
      • Removing light is not as simple as adding a checkbox, as it requires deep changes in the
        WebGL shaders, which would need to be proven really needed before having them implemented.
        Also removing any lightning, would give us no information about the geometry of the scene, thus
        possibly not very useful.
        Anyway, I will give it a try with changing the light colour (to try make it more neutral), and I will
        let you know if I get any improvement.
      • I agree that removing light is not a good solution, we only need to get rid of the white stains.
        I join an example of how lights look like in anatomist, which is fine for me (it is a parcellation and not activity, but I believe it is the same problem).

        Attachments

        1. cortex.png
          cortex.png
          216 kB
        2. cortex-no-specular.png
          cortex-no-specular.png
          203 kB
        3. goodExample.png
          goodExample.png
          806 kB
        4. light.png
          light.png
          301 kB

          Activity

            People

            • Assignee:
              mihai.andrei Mihai Andrei
              Reporter:
              tim.proix Tim Proix
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              • Created:
                Updated:
                Resolved:

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