106 lines
3.5 KiB
Plaintext
106 lines
3.5 KiB
Plaintext
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/************************************************************************************
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Depthkit Unity SDK License v1
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Copyright 2016-2024 Simile Inc dba Scatter. All Rights reserved.
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Licensed under the the Simile Inc dba Scatter ("Scatter")
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Software Development Kit License Agreement (the "License");
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you may not use this SDK except in compliance with the License,
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which is provided at the time of installation or download,
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or which otherwise accompanies this software in either electronic or hard copy form.
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You may obtain a copy of the License at http://www.depthkit.tv/license-agreement-v1
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Unless required by applicable law or agreed to in writing,
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the SDK distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and limitations under the License.
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************************************************************************************/
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float4x4 _LocalTransform;
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float4x4 _LocalTransformInverse;
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float _ShadowAmount;
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struct appdata
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{
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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uint id : SV_VertexID;
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct v2f
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{
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float2 uv : TEXCOORD0;
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float4 pos : SV_POSITION;
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float4 world_position : TEXCOORD1;
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float4 object_position : TEXCOORD2;
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float3 object_normal : TEXCOORD3;
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#if defined(DK_USE_LIGHTPROBES) && defined(DK_FORWARDBASE_PASS)
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float3 indirect : COLOR0;
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#endif
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UNITY_FOG_COORDS(4)
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SHADOW_COORDS(5)
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UNITY_VERTEX_OUTPUT_STEREO
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};
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v2f vert(appdata v)
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{
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v2f o;
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UNITY_SETUP_INSTANCE_ID(v);
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UNITY_INITIALIZE_OUTPUT(v2f, o);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
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Vertex vert = dkSampleTriangleBuffer(floor(v.id / 3), v.id % 3);
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o.uv = vert.uv.xy;
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o.object_position = float4(vert.position, 1);
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float4 localPosition = mul(_LocalTransform, o.object_position);
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o.world_position = mul(unity_ObjectToWorld, localPosition);
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o.object_normal = vert.normal;
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#if defined(DK_TEXTURE_ATLAS)
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v.vertex = o.object_position;
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o.pos = float4((o.uv * 2.0f - 1.0f) * float2(1, -1), vert.uv.z, 1);
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return o;
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#else
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#if defined(DK_USE_LIGHTPROBES) && defined(DK_FORWARDBASE_PASS)
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float3 worldNormal = UnityObjectToWorldNormal(mul((float3x3)_LocalTransform, o.object_normal));
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o.indirect = max(0, ShadeSH9(half4(worldNormal, 1)));
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#endif
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v.vertex = localPosition;
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o.pos = UnityObjectToClipPos(v.vertex);
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UNITY_TRANSFER_FOG(o, o.pos);
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TRANSFER_SHADOW(o);
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return o;
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#endif
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}
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fixed4 frag(v2f i) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
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float3 viewDir = mul((float3x3) _LocalTransformInverse, mul(unity_WorldToObject, normalize(_WorldSpaceCameraPos.xyz - i.world_position.xyz))).xyz;
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float3 color = dkSampleColorViewWeightedReprojection(viewDir, i.object_position.xyz, i.object_normal.xyz);
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#if defined(DK_NO_MAIN_LIGHT) && defined(DK_FORWARDBASE_PASS)
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#if defined(DK_USE_LIGHTPROBES)
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color = color * i.indirect;
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#endif
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#else
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float3 shadow = lerp(float3(1.0, 1.0, 1.0), SHADOW_ATTENUATION(i), saturate(_ShadowAmount));
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#if defined(DK_USE_LIGHTPROBES) && defined(DK_FORWARDBASE_PASS)
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color = lerp(color * i.indirect, color, shadow);
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#else
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color *= shadow;
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#endif
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#endif
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float4 c = fixed4(color, 1);
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// apply fog
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UNITY_APPLY_FOG(i.fogCoord, c);
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return c;
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}
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