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  1. Namey5
    Post

    How can I get the vertex position in the last frame in shader?

    You would need to pass in the object's transformation matrices from the previous frame (specifically the model matrix, i.e....
    Post by: Namey5, Sep 13, 2020 in forum: Shaders
  2. Namey5
    Post

    Cutout Shader

    There are two things I notice immediately; 1. You should probably use unity_ObjectToWorld and unity_WorldToObject as the UNITY_MATRIX_X defines...
    Post by: Namey5, Aug 30, 2020 in forum: Shaders
  3. Namey5
    Post

    Question Range of Motion Vectors

    Motion vectors are simply the screen space velocity of pixels between frames and are stored in 16-bit floating point, so there isn't actually any...
    Post by: Namey5, Jul 10, 2020 in forum: Shaders
  4. Namey5
    Post

    Ideas on how to accomplish 2d terrain lighting with only a texture and a height map

    Here's a basic shader that will do this; Shader "Custom/Heightmap Lighting" { Properties { _Color ("Color", Color) = (1,1,1,1)...
    Post by: Namey5, Jul 3, 2020 in forum: Shaders
  5. Namey5
    Post

    Question How to get world up vector in screen space

    One way would be to find the two end points of the vector in screen space and take the difference between them; //Find the world space position...
    Post by: Namey5, Jun 30, 2020 in forum: Shaders
  6. Namey5
    Post

    Converting depth values to distances from z-buffer

    If you just need view space depth (distance along the camera's local z axis) then you can use the LinearEyeDepth function; fixed4 frag (v2f i) :...
    Post by: Namey5, Jun 29, 2020 in forum: Shaders
  7. Namey5
    Post

    Question Shader Graph - Lighting Back Face

    If you have shadows in your scene you will need to set the normal bias to 0 in your pipeline settings. It only shifts the shadowcaster vertices in...
    Post by: Namey5, Jun 25, 2020 in forum: Shaders
  8. Namey5
    Post

    Adding hard lines to a gradient

    Good point. For that I made reference to a shader I wrote for UA that does this, but I now realise I remembered it poorly - the height wasn't...
    Post by: Namey5, Jun 25, 2020 in forum: Shaders
  9. Namey5
    Post

    Question Shader Graph - Lighting Back Face

    You need to flip the vertex normals if the camera is looking at the back of the mesh; [ATTACH] Annoyingly there is a bug where you can't use the...
    Post by: Namey5, Jun 25, 2020 in forum: Shaders
  10. Namey5
    Post

    Adding hard lines to a gradient

    All you really need to do is scale the line width by the gradient of the height (which you can access through screen space derivative functions);...
    Post by: Namey5, Jun 25, 2020 in forum: Shaders
  11. Namey5
    Post

    Multiple cameras using the same image effect

    You would need to apply the effect to every camera. If you wanted all cameras to use the same effect controllable externally you would need to use...
    Post by: Namey5, Jun 25, 2020 in forum: Shaders
  12. Namey5
    Post

    PBR Shader with UPR returning far too strong emission

    Run the output of the subtract node through a saturate node before sending to the master node. As it is the values will be unclamped and will...
    Post by: Namey5, Jun 22, 2020 in forum: Shaders
  13. Namey5
    Post

    Normal Map behavior in VR

    Well for one you aren't sampling the screen-space texture properly to account for perspective distortion; //This tex2D...
    Post by: Namey5, Jun 18, 2020 in forum: Shaders
  14. Namey5
    Post

    Question How can I scale an image without blur in Unity Shader?

    You can check whether the UVs have gone out of bounds and mask the final output; return tex_screen * (uv.y <= 1.0); This just checks against the...
    Post by: Namey5, Jun 18, 2020 in forum: Shaders
  15. Namey5
    Post

    Moving a vertice after applying lights and shadows.

    All shadow sampling code is defined in "AutoLight.cginc" which you can find by downloading the builtin shaders from the Unity website. From there,...
    Post by: Namey5, Jun 10, 2020 in forum: Shaders
  16. Namey5
    Post

    Moving a vertice after applying lights and shadows.

    This is definitely possible. What you would want to do is only apply the vertex offset to the output clip-space position whilst leaving all other...
    Post by: Namey5, Jun 9, 2020 in forum: Shaders
  17. Namey5
    Post

    IndexOutOfRangeException: Invalid kernelIndex (0) passed, must be non-negative less than 0.

    This could be a number of things, although I would imagine that these lines are causing an error with the kernel, thus it cannot be 'found'. I...
    Post by: Namey5, May 20, 2020 in forum: Shaders
  18. Namey5
    Post

    Weird results when trying to use different parts of texture atlas depending on surface normal

    This looks to be a precision issue (potentially from vertex normal interpolation). There are probably smarter ways to do this, but as a simple fix...
    Post by: Namey5, May 20, 2020 in forum: Shaders
  19. Namey5
    Post

    URP - Fog end and camera far plane relationship

    This would be by design. Fog is calculated simply based on the provided depth (independent of far plane) and remapping factors. If this wasn't the...
    Post by: Namey5, May 20, 2020 in forum: Shaders
  20. Namey5
    Post

    Custom SSAO Shader - Need help please

    It is actually pretty close to just multiplying by the inverse projection matrix, you just need to do things in a specific order; ... struct v2f...
    Post by: Namey5, May 20, 2020 in forum: Shaders
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