forked from cgvr/DeltaVR
67 lines
2.0 KiB
Plaintext
67 lines
2.0 KiB
Plaintext
Shader "MixedReality/SelectivePassthroughSoft" {
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Properties{
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_MainTex("Texture", 2D) = "white" {}
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_SoftFade("Soft Fade Distance", Float) = 0.05
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_Inflation("Inflation", float) = 0
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}
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SubShader {
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Tags{"RenderType" = "Transparent"} LOD 100
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Pass {
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ZWrite Off
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BlendOp RevSub, Min
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Blend Zero One, One OneMinusSrcAlpha
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CGPROGRAM
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// Upgrade NOTE: excluded shader from DX11; has structs without semantics (struct v2f members
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// center)
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//#pragma exclude_renderers d3d11
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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struct appdata {
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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float3 normal : NORMAL;
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};
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struct v2f {
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float2 uv : TEXCOORD0;
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float4 vertex : SV_POSITION;
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float2 projPos : TEXCOORD1;
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float depth : DEPTH;
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};
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sampler2D _MainTex;
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sampler2D _CameraDepthTexture;
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float4 _MainTex_ST;
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float _SoftFade;
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float _Inflation;
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v2f vert(appdata v) {
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v2f o;
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o.vertex = UnityObjectToClipPos(v.vertex + v.normal * _Inflation);
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float4 origin = mul(unity_ObjectToWorld, float4(0.0, 0.0, 0.0, 1.0));
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o.uv = TRANSFORM_TEX(v.uv, _MainTex);
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o.depth = -UnityObjectToViewPos(v.vertex).z * _ProjectionParams.w;
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o.projPos = (o.vertex.xy / o.vertex.w) * 0.5 + 0.5;
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return o;
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}
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fixed4 frag(v2f i) : SV_Target {
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// get a linear & normalized (0-1) depth value of the scene
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float frameDepth = Linear01Depth(SAMPLE_DEPTH_TEXTURE(_CameraDepthTexture, i.projPos.xy));
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// convert the normalized value to world units, with depth of 0 at this mesh
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frameDepth = (frameDepth - i.depth) * _ProjectionParams.z;
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// remap it to a fade distance
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frameDepth = saturate(frameDepth / _SoftFade);
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fixed4 col = tex2D(_MainTex, i.uv);
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return float4(0, 0, 0, 1-(col.r * frameDepth));
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}
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ENDCG
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}
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}
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}
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