95 lines
3.6 KiB
HLSL
95 lines
3.6 KiB
HLSL
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#if defined(Geometry)
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#define TRANSFER_SHADOW_CASTER_NOPOS_GEOMETRY(o, opos, vertexPosition, vertexNormal) \
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opos = UnityClipSpaceShadowCasterPos(vertexPosition, vertexNormal); \
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opos = UnityApplyLinearShadowBias(opos);
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[maxvertexcount(6)]
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void geom(triangle v2g IN[3], inout TriangleStream<g2f> tristream)
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{
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g2f o = (g2f)0;
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//Main Mesh loop
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for (int i = 0; i < 3; i++)
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{
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o.pos = UnityObjectToClipPos(IN[i].vertex);
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o.worldPos = IN[i].worldPos;
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o.ntb[0] = IN[i].ntb[0];
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o.ntb[1] = IN[i].ntb[1];
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o.ntb[2] = IN[i].ntb[2];
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o.uv = IN[i].uv;
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o.uv1 = IN[i].uv1;
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o.color = float4(IN[i].color.rgb,0); // store if outline in alpha channel of vertex colors | 0 = not an outline
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o.screenPos = ComputeScreenPos(o.pos);
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o.objPos = normalize(IN[i].vertex);
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#if !defined(UNITY_PASS_SHADOWCASTER)
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UNITY_TRANSFER_SHADOW(o, o.uv);
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UNITY_TRANSFER_FOG(o, o.pos);
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#else
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TRANSFER_SHADOW_CASTER_NOPOS_GEOMETRY(o, o.pos, IN[i].vertex, IN[i].ntb[0]);
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#endif
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tristream.Append(o);
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}
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tristream.RestartStrip();
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//Outlines loop
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for (int i = 2; i >= 0; i--)
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{
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float4 worldPos = (mul(unity_ObjectToWorld, IN[i].vertex));
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half outlineWidthMask = tex2Dlod(_OutlineMask, float4(IN[i].uv, 0, 0));
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float3 outlineWidth = outlineWidthMask * _OutlineWidth * .01;
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outlineWidth *= min(distance(worldPos, _WorldSpaceCameraPos) * 3, 1);
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float3 vc = IN[i].color.rgb;
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if(_OutlineNormalMode == 2)
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{
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float2 xy = IN[i].uv1;
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if(_OutlineUVSelect == 1)
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xy = IN[i].uv2;
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float reconstructedZ = sqrt(1-saturate(dot(xy, xy)));
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vc = normalize(float3(xy, reconstructedZ));
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}
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vc = vc * 2 - 1;
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float3 t = mul(unity_WorldToObject, IN[i].ntb[1]);
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float3 b = mul(unity_WorldToObject, IN[i].ntb[2]);
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float3 n = mul(unity_WorldToObject, IN[i].ntb[0]);
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half3 tspace0 = half3(t.x, b.x, n.x);
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half3 tspace1 = half3(t.y, b.y, n.y);
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half3 tspace2 = half3(t.z, b.z, n.z);
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half3 calcedNormal;
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calcedNormal.x = dot(tspace0, vc);
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calcedNormal.y = dot(tspace1, vc);
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calcedNormal.z = dot(tspace2, vc);
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half3 normalDir = normalize(lerp(IN[i].normal, calcedNormal, saturate(_OutlineNormalMode)));
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float4 outlinePos = float4(IN[i].vertex + normalDir * outlineWidth, 1);
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if(outlineWidthMask == 0)
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return;
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o.pos = UnityObjectToClipPos(outlinePos);
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o.worldPos = worldPos;
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o.ntb[0] = IN[i].ntb[0];
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o.ntb[1] = IN[i].ntb[1];
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o.ntb[2] = IN[i].ntb[2];
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o.uv = IN[i].uv;
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o.uv1 = IN[i].uv1;
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o.color = float4(IN[i].color.rgb, 1); // store if outline in alpha channel of vertex colors | 1 = is an outline
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o.screenPos = ComputeScreenPos(o.pos);
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o.objPos = normalize(outlinePos);
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#if !defined(UNITY_PASS_SHADOWCASTER)
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UNITY_TRANSFER_SHADOW(o, o.uv);
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UNITY_TRANSFER_FOG(o, o.pos);
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#else
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TRANSFER_SHADOW_CASTER_NOPOS_GEOMETRY(o, o.pos, outlinePos, IN[i].ntb[0]);
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#endif
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tristream.Append(o);
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}
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tristream.RestartStrip();
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}
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#endif
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