102 lines
2.5 KiB
Plaintext
102 lines
2.5 KiB
Plaintext
/************************************************************************************
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Copyright : Copyright (c) Facebook Technologies, LLC and its affiliates. All rights reserved.
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Your use of this SDK or tool is subject to the Oculus SDK License Agreement, available at
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https://developer.oculus.com/licenses/oculussdk/
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Unless required by applicable law or agreed to in writing, the Utilities SDK distributed
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under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
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ANY KIND, either express or implied. See the License for the specific language governing
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permissions and limitations under the License.
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************************************************************************************/
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Shader "Oculus/Interaction/SkyboxGradient"
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{
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Properties
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{
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_TopColor("Top Color", Color) = (1, 0.3, 0.3, 1)
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_MiddleColor("MiddleColor", Color) = (1.0, 1.0, 1)
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_BottomColor("Bottom Color", Color) = (0.3, 0.3, 1, 1)
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_Direction("Direction", Vector) = (0, 1, 0)
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_DitherStrength("Dither Strength", int) = 16
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}
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SubShader
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{
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Tags
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{
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"RenderType" = "Background"
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"Queue" = "Background"
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}
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Pass
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{
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ZWrite Off
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Cull Off
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CGPROGRAM
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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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#include "InteractionCG.cginc"
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uniform half3 _TopColor;
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uniform half3 _BottomColor;
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uniform half3 _MiddleColor;
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uniform float3 _Direction;
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struct VertexInput
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{
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float4 vertex : POSITION;
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float3 texcoord : TEXCOORD0;
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct VertexOutput
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{
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float4 vertex : SV_POSITION;
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float3 texcoord : TEXCOORD1;
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UNITY_VERTEX_INPUT_INSTANCE_ID
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UNITY_VERTEX_OUTPUT_STEREO
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};
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VertexOutput vert(VertexInput v)
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{
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VertexOutput o;
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UNITY_SETUP_INSTANCE_ID(v);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
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UNITY_TRANSFER_INSTANCE_ID(v, o);
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o.vertex = UnityObjectToClipPos(v.vertex);
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o.texcoord = v.texcoord;
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return o;
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}
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half4 frag(VertexOutput i) : SV_TARGET
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{
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UNITY_SETUP_INSTANCE_ID(i);
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
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float3 texcoord = normalize(i.texcoord);
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half ditherNoise = DitherAnimatedNoise(i.vertex.xy);
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float range = dot(texcoord, _Direction) + ditherNoise;
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half bottomRange = saturate(-range);
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half middleRange = 1 - abs(range);
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half topRange = saturate(range);
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half3 finalColor = _BottomColor.rgb * bottomRange
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+ _MiddleColor.rgb * middleRange
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+_TopColor.rgb * topRange;
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return half4(finalColor,1);
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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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