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  1. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    The 1 - o.Alpha won't do... The second shader needs to output specSmoothness.a *= o.Alpha * _ContributionDiffuseSpecular. The smoothness component...
    Post by: Dolkar, Oct 6, 2015 in forum: Shaders
  2. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    My bad, I should have explained further. The comma in between blending modes signifies separate blending mode for the alpha channel. The SL...
    Post by: Dolkar, Oct 6, 2015 in forum: Shaders
  3. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    Actually, now that I'm thinking about it... What if the first pass multiplied the existing smoothness value by one minus the actual alpha. Then...
    Post by: Dolkar, Oct 5, 2015 in forum: Shaders
  4. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    I'm glad to help! Especially so since deferred decals is something I'd have to look into sooner or later and now I know what are the limitations...
    Post by: Dolkar, Oct 5, 2015 in forum: Shaders
  5. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    I think this is the best way to go around it: Your first pass uses the suggested Blend SrcAlpha OneMinusSrcAlpha, Zero One and renders to all...
    Post by: Dolkar, Oct 5, 2015 in forum: Shaders
  6. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    I don't think you're able to add an additional buffer, because Unity has a limit of up to 4 buffers bound at once. Logical blend operations are...
    Post by: Dolkar, Oct 5, 2015 in forum: Shaders
  7. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    I'm pretty sure that's unfortunately not possible. You can't both use alpha for controlling the transparency and also treat it as a sensible...
    Post by: Dolkar, Oct 5, 2015 in forum: Shaders
  8. Dolkar
    Post

    LUT based color correction destroyed my scene

    8.78?! And no less? That would mean it's bleeding even though you're sampling pixels nowhere near the borders! It makes no sense... One important...
    Post by: Dolkar, Oct 3, 2015 in forum: Shaders
  9. Dolkar
    Post

    LUT based color correction destroyed my scene

    Hmm that's really weird... try messing around with the border value here: float border = 1.0; uv.x = saturate(uv.x) * (1.0 - (border * 2) / (width...
    Post by: Dolkar, Oct 3, 2015 in forum: Shaders
  10. Dolkar
    Post

    LUT based color correction destroyed my scene

    The reason the bleeding problem is gone in your red tinted example is because it's caused by red values too close to 0 and 255. I thought the...
    Post by: Dolkar, Oct 3, 2015 in forum: Shaders
  11. Dolkar
    Post

    LUT based color correction destroyed my scene

    Here's my quick implementation of the function.. see if it works with that :) float4 sampleAs3DTexture(sampler2D lutTex, float3 uv, float width)...
    Post by: Dolkar, Oct 3, 2015 in forum: Shaders
  12. Dolkar
    Post

    LUT based color correction destroyed my scene

    uv.x = clamp(uv.x, 0.5 / width, (width - 0.5) / width) By the way, I'm not fully following the code you have there... It looks you have some half...
    Post by: Dolkar, Oct 3, 2015 in forum: Shaders
  13. Dolkar
    Post

    LUT based color correction destroyed my scene

    Yeah, that looks like bleeding because of linear interpolation. You should be able to avoid it by clamping your sampling area to the centers of...
    Post by: Dolkar, Oct 3, 2015 in forum: Shaders
  14. Dolkar
    Post

    LUT based color correction destroyed my scene

    I'm not sure if your math is correct, but even if it was, sampling a LUT in its unwrapped 2D form has a few major problems. First is bleeding. For...
    Post by: Dolkar, Oct 3, 2015 in forum: Shaders
  15. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    That's actually the issue. I already suggested before to not use premultiplied alpha with regular alpha blending. You can either have one of the...
    Post by: Dolkar, Sep 28, 2015 in forum: Shaders
  16. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    That definitely shouldn't be happening. It's a weighted sum... if both values are the same, then the result should be as well, regardless of the...
    Post by: Dolkar, Sep 28, 2015 in forum: Shaders
  17. Dolkar
    Post

    How do I write a normal decal shader using a newly added (Unity 5.2) "finalgbuffer" modifier?

    Well, regular alpha blending is basically a lerp based on the alpha. So you're using it already.
    Post by: Dolkar, Sep 28, 2015 in forum: Shaders
  18. Dolkar
    Post

    Compute depth 01

    Probably because by, I believe, OpenGL convention, the z component for view space positions in front of the camera are negative... So the minus...
    Post by: Dolkar, Sep 25, 2015 in forum: Shaders
  19. Dolkar
    Post

    2 sided height map issue

    Actually, if you define the "VFACE" pixel shader input semantic, you can use that value to check to which side the pixel belongs and flip the...
    Post by: Dolkar, Sep 25, 2015 in forum: Shaders
  20. Dolkar
    Post

    Unity should increase shader keywords to 256 ...

    You're making it a much bigger deal than it is. It's not that hard to remove the keywords you don't need. 128 is already generous enough,...
    Post by: Dolkar, Sep 25, 2015 in forum: Shaders
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