75 lines
4.1 KiB
C#
75 lines
4.1 KiB
C#
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#if AMPLIFY_SHADER_EDITOR
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using UnityEngine;
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using System;
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using System.Collections.Generic;
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using AmplifyShaderEditor;
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namespace AmplifyShaderEditor
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{
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[Serializable]
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[NodeAttributes("Vegetation Studio - Touch React", "Vegetation Studio", "Add touch react to your vegetation shader")]
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public class TouchReactNode : ParentNode
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{
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public static readonly string TouchReactAdjustVertex = "TouchReactAdjustVertex( {0}3({1},{2},{3}) )";
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protected override void CommonInit(int uniqueId)
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{
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base.CommonInit(uniqueId);
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AddInputPort(WirePortDataType.FLOAT3, false, "Vertex Position");
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AddOutputPort(WirePortDataType.FLOAT3, "Local Vertex Offset");
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}
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public override void OnInputPortConnected(int inputPortId, int otherNodeId, int otherPortId, bool activateNode = true)
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{
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base.OnInputPortConnected(inputPortId, otherNodeId, otherPortId, activateNode);
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UpdateConnection(inputPortId);
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}
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void UpdateConnection(int portId)
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{
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m_inputPorts[portId].MatchPortToConnection();
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//WirePortDataType outputType = (UIUtils.GetPriority(m_inputPorts[0].DataType) > UIUtils.GetPriority(m_inputPorts[1].DataType)) ? m_inputPorts[0].DataType : m_inputPorts[1].DataType;
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WirePortDataType outputType = m_inputPorts[0].DataType;
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m_outputPorts[0].ChangeType(outputType, false);
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}
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public override string GenerateShaderForOutput(int outputId, ref MasterNodeDataCollector dataCollector,
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bool ignoreLocalvar)
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{
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string valueInput1 = m_inputPorts[0].GenerateShaderForOutput(ref dataCollector, WirePortDataType.FLOAT4, ignoreLocalvar, true);
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//dataCollector.AddToPragmas(UniqueId, "multi_compile TOUCH_BEND_ON __");
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List<string> touchReactAdjustVertexFunctionStringList = new List<string>();
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//touchReactAdjustVertexFunctionStringList.Add("#ifdef TOUCH_BEND_ON");
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touchReactAdjustVertexFunctionStringList.Add("sampler2D _TouchReact_Buffer;");
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touchReactAdjustVertexFunctionStringList.Add("float4 _TouchReact_Pos;");
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//touchReactAdjustVertexFunctionStringList.Add("#endif");
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touchReactAdjustVertexFunctionStringList.Add(" ");
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touchReactAdjustVertexFunctionStringList.Add("float3 TouchReactAdjustVertex(float3 pos)");
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touchReactAdjustVertexFunctionStringList.Add("{");
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//touchReactAdjustVertexFunctionStringList.Add("#ifdef TOUCH_BEND_ON");
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touchReactAdjustVertexFunctionStringList.Add(" float3 worldPos = mul(unity_ObjectToWorld, float4(pos,1));");
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touchReactAdjustVertexFunctionStringList.Add(" float2 tbPos = saturate((float2(worldPos.x,-worldPos.z) - _TouchReact_Pos.xz)/_TouchReact_Pos.w);");
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touchReactAdjustVertexFunctionStringList.Add(" float2 touchBend = tex2Dlod(_TouchReact_Buffer, float4(tbPos,0,0));");
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touchReactAdjustVertexFunctionStringList.Add(" touchBend.y *= 1.0 - length(tbPos - 0.5) * 2;");
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touchReactAdjustVertexFunctionStringList.Add(" if(touchBend.y > 0.01)");
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touchReactAdjustVertexFunctionStringList.Add(" {");
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touchReactAdjustVertexFunctionStringList.Add(" worldPos.y = min(worldPos.y, touchBend.x * 10000);");
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touchReactAdjustVertexFunctionStringList.Add(" }");
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touchReactAdjustVertexFunctionStringList.Add("");
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touchReactAdjustVertexFunctionStringList.Add(" float3 changedLocalPos = mul(unity_WorldToObject, float4(worldPos,1)).xyz;");
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touchReactAdjustVertexFunctionStringList.Add(" return changedLocalPos - pos;");
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//touchReactAdjustVertexFunctionStringList.Add("#else");
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//touchReactAdjustVertexFunctionStringList.Add(" return float3(0,0,0);");
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//touchReactAdjustVertexFunctionStringList.Add("#endif");
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touchReactAdjustVertexFunctionStringList.Add("}");
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dataCollector.AddFunction(TouchReactAdjustVertex,touchReactAdjustVertexFunctionStringList.ToArray(),true);
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return "TouchReactAdjustVertex(" + valueInput1 + ".xyz)";
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}
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}
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}
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#endif
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