pema99

void EllipsoidTransformDerivatives(inout float2 dx, inout float2 dy)
{
    bool anyZero = length(dx) == 0 || length(dy) == 0;
    bool parallel = (dx.x * dy.y - dx.y * dy.x) == 0;
    bool perpendicular = dot(dx, dy) == 0;
    bool nonFinite = isinf(dx) || isinf(dy) || isnan(dx) || isnan(dy);
    if (!anyZero && !parallel && !perpendicular && !nonFinite)
    {
        float A = dx.y*dx.y + dy.y*dy.y;
        float B = -2.0 * (dx.x * dx.y + dy.x * dy.y);

pema99

Shader "Unlit/CompareMipSelection"
{
    Properties
    {
        _MainTex ("Main color texture", 2D) = "white" {}
        _MipTexture ("Texture with different color mips", 2D) = "white" {}
        _AnisoLevel ("Aniso Level (must set manually to match texture)", Range(0, 16)) = 0
        [ToggleUI] _VisualizeMipLevels ("Visualize Mip Levels", Integer) = 0
    }
    SubShader