Question

我正在尝试编写一个可以将普通精灵变成像素艺术的精灵着色器。并且它在纹理中工作得相对较好，但整个事物总是具有原始精灵的形状而不是整个正方形。我怀疑那是因为那里原本没有顶点，着色器不会经过这些点，这就是为什么方块被切断了。我可以以某种方式使这成为可能吗？

Original Image

Pixelated

Shader "Own/Pixel"
{
    Properties
    {
        [PerRendererData]_MainTex("Texture", 2D) = "white" {}
        _PosCorrection("Pos Correction", Range(0,1000)) = 1
        _ColorCorrection("Color Correction", Float) = 1
    }
        SubShader
    {
        Tags
    {
        "Queue" = "AlphaTest"
        "IgnoreProjector" = "True"
        "RenderType" = "Transparent"
        "PreviewType" = "Plane"
        "CanUseSpriteAtlas" = "True"
    }
        ZWrite off
        Cull Off
        Lighting Off
        Blend One OneMinusSrcAlpha

        Pass
    {

        CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile _ PIXELSNAP_ON

#include "UnityCG.cginc"

        struct input
    {
        float4 vertex : POSITION;
        float2 uv : TEXCOORD0;
    };

    struct output
    {
        float2 uv : TEXCOORD0;
        fixed4 color : COLOR;
        float4 vertex : SV_POSITION;
    };

    float _ColorCorrection;
    float _PosCorrection;

    output vert(input v)
    {
        output o;

        o.vertex = UnityObjectToClipPos(v.vertex);
        o.vertex = UnityPixelSnap(o.vertex);
        o.uv = v.uv;
        return o;
    }


    sampler2D _MainTex;

    fixed4 frag(output i) : COLOR
    {
        float4 col = tex2D(_MainTex, round(i.uv*_PosCorrection) / _PosCorrection);

        //// just invert the colors
        //col.r = round(col.r * _ColorCorrection);
        //col.g = round(col.g * _ColorCorrection);
        //col.b = round(col.b * _ColorCorrection);
        col.rgb *= col.a;


        //return float4(col.rgb / _ColorCorrection,col.a);
        return col;
    }
        ENDCG
    }
    }
}

Pixel Art Sprite Shader无法切除边缘？

0 个答案: