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CortexCore
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// Fantasy Adventure Environment
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// Copyright Staggart Creations
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// staggart.xyz
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using UnityEngine;
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using UnityEditor;
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using System.Collections;
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namespace FAE
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{
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[ExecuteInEditMode]
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public class GrassShaderGUI : ShaderGUI
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{
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MaterialProperty _MaskClipValue;
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//Main maps
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MaterialProperty _MainTex;
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MaterialProperty _BumpMap;
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//Color
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MaterialProperty _ColorTop;
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MaterialProperty _ColorBottom;
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MaterialProperty _ColorVariation;
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MaterialProperty _AmbientOcclusion;
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MaterialProperty _TransmissionSize;
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MaterialProperty _TransmissionAmount;
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//Animation
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MaterialProperty _MaxWindStrength;
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MaterialProperty _WindSwinging;
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MaterialProperty _WindAmplitudeMultiplier;
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MaterialProperty _BendingInfluence;
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//VS Touch Bend
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#if TOUCH_REACT
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MaterialProperty _VS_TOUCHBEND;
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MaterialProperty _BendingTint;
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#endif
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//Heightmap
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MaterialProperty _HeightmapInfluence;
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MaterialProperty _MinHeight;
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MaterialProperty _MaxHeight;
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//Pigment map
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MaterialProperty _PigmentMapInfluence;
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MaterialProperty _PigmentMapHeight;
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MaterialEditor m_MaterialEditor;
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//Meta
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bool showHelp;
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bool showHelpColor;
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bool showHelpAnimation;
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bool showHelpBending;
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bool showHelpHeightmap;
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bool showHelpPigmentmap;
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#if UNITY_5_5_OR_NEWER
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bool hasPigmentMap = true;
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#endif
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bool hasWindController;
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WindController windController;
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GUIContent mainTexName = new GUIContent("Diffuse", "Diffuse (RGB) and Transparency (A)");
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GUIContent normalMapName = new GUIContent("Normal Map");
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private bool visualizeVectors;
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public override void OnGUI(MaterialEditor materialEditor, MaterialProperty[] props)
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{
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if (windController == null) LocateWindController();
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this.FindProperties(props);
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//Receive
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visualizeVectors = WindController._visualizeVectors;
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this.m_MaterialEditor = materialEditor;
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//Style similar to Standard shader
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m_MaterialEditor.SetDefaultGUIWidths();
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m_MaterialEditor.UseDefaultMargins();
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EditorGUIUtility.labelWidth = 0f;
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//GetGlobalTexture is only available since Unity 5.5
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#if UNITY_5_5_OR_NEWER
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hasPigmentMap = (Shader.GetGlobalTexture("_PigmentMap")) ? true : false;
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#endif
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EditorGUI.BeginChangeCheck();
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//Draw fields
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DoHeader();
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DoMapsArea();
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DoColorArea();
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DoAnimationArea();
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DoBendingArea();
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DoHeightmapArea();
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DoPigmentMapArea();
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if (EditorGUI.EndChangeCheck())
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{
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//Send
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WindController.VisualizeVectors(visualizeVectors);
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}
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GUIHelper.DrawExtraFields(m_MaterialEditor);
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GUIHelper.DrawFooter();
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}
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void DoHeader()
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{
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EditorGUILayout.BeginHorizontal();
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showHelp = GUILayout.Toggle(showHelp, "Toggle help", "Button");
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GUILayout.Label("FAE Grass Shader", GUIHelper.Header);
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EditorGUILayout.EndHorizontal();
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if (showHelp) EditorGUILayout.HelpBox("Please bear in mind, when using custom meshes, that most shader feature require the top of the mesh to be vertex colored.", MessageType.Warning);
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}
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void DoMapsArea()
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{
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GUILayout.Label("Main maps", EditorStyles.boldLabel);
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EditorGUILayout.BeginHorizontal();
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EditorGUILayout.PrefixLabel(_MaskClipValue.displayName);
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_MaskClipValue.floatValue = EditorGUILayout.Slider(_MaskClipValue.floatValue, 0f, 1f);
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EditorGUILayout.EndHorizontal();
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this.m_MaterialEditor.TexturePropertySingleLine(mainTexName, this._MainTex);
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this.m_MaterialEditor.TexturePropertySingleLine(normalMapName, this._BumpMap);
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EditorGUILayout.Space();
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}
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void DoColorArea()
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{
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EditorGUILayout.BeginHorizontal();
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showHelpColor = GUILayout.Toggle(showHelpColor, "?", "Button", GUILayout.Width(25f)); GUILayout.Label("Color", EditorStyles.boldLabel);
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EditorGUILayout.EndHorizontal();
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EditorGUI.BeginDisabledGroup(_PigmentMapInfluence.floatValue == 1);
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m_MaterialEditor.ShaderProperty(_ColorTop, "Top");
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m_MaterialEditor.ShaderProperty(_ColorBottom, "Bottom");
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EditorGUI.EndDisabledGroup();
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if (_PigmentMapInfluence.floatValue == 1)
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{
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EditorGUILayout.HelpBox("These colors are disabled because the pigment map influence value is set to 1, so they would have no effect", MessageType.None);
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}
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m_MaterialEditor.ShaderProperty(_ColorVariation, _ColorVariation.displayName);
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if (showHelpColor) EditorGUILayout.HelpBox("Vizualises the wind by adding a slight white tint. When the wind strength is set 0, this effect doesn't appear", MessageType.None);
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m_MaterialEditor.ShaderProperty(_AmbientOcclusion, _AmbientOcclusion.displayName);
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if (showHelpColor) EditorGUILayout.HelpBox("Darkens the areas of the mesh where vertex colors are applied", MessageType.None);
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m_MaterialEditor.ShaderProperty(_TransmissionAmount, _TransmissionAmount.displayName);
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if (showHelpColor) EditorGUILayout.HelpBox("Simulates light passing through the material. This will have no effect on short grass.", MessageType.None);
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m_MaterialEditor.ShaderProperty(_TransmissionSize, _TransmissionSize.displayName);
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EditorGUILayout.Space();
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}
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void DoAnimationArea()
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{
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EditorGUILayout.BeginHorizontal();
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showHelpAnimation = GUILayout.Toggle(showHelpAnimation, "?", "Button", GUILayout.Width(25f)); GUILayout.Label("Wind animation", EditorStyles.boldLabel);
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EditorGUILayout.EndHorizontal();
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visualizeVectors = EditorGUILayout.Toggle("Visualize wind", visualizeVectors);
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#if !VEGETATION_STUDIO_PRO //VS Pro has an FAE wind controller
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if (!hasWindController)
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{
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EditorGUILayout.HelpBox("No \"WindController\" component was found in your scene. Please add this script to an empty GameObject\n\nA prefab can be found in the Prefabs/Effects folder.", MessageType.Warning);
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EditorGUI.BeginDisabledGroup(true);
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}
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#else
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EditorGUI.BeginDisabledGroup(false);
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#endif
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if (showHelpAnimation) EditorGUILayout.HelpBox("Toggle a visualisation of the wind vectors on all the objects that use FAE shaders featuring wind.\n\nThis allows you to more clearly see the effects of the settings.", MessageType.None);
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m_MaterialEditor.ShaderProperty(_MaxWindStrength, _MaxWindStrength.displayName);
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if (showHelpAnimation) EditorGUILayout.HelpBox("Determines how much influence the wind has on the object", MessageType.None);
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m_MaterialEditor.ShaderProperty(_WindSwinging, _WindSwinging.displayName);
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if (showHelpAnimation) EditorGUILayout.HelpBox("Higher values mean the object always sways back against the wind direction", MessageType.None);
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EditorGUILayout.BeginHorizontal();
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EditorGUILayout.LabelField(_WindAmplitudeMultiplier.displayName);
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_WindAmplitudeMultiplier.floatValue = EditorGUILayout.FloatField(_WindAmplitudeMultiplier.floatValue, GUILayout.Width(65f));
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EditorGUILayout.EndHorizontal();
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if (showHelpAnimation) EditorGUILayout.HelpBox("Multiply the wind amplitude for this material. Essentally this is the size of the wind waves.", MessageType.None);
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if (!hasWindController)
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{
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EditorGUI.EndDisabledGroup();
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}
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if (hasWindController && showHelpAnimation)
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{
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GUIHelper.DrawWindInfo();
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}
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EditorGUILayout.Space();
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}
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void DoBendingArea()
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{
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EditorGUILayout.BeginHorizontal();
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showHelpBending = GUILayout.Toggle(showHelpBending, "?", "Button", GUILayout.Width(25f)); GUILayout.Label("Bending", EditorStyles.boldLabel);
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EditorGUILayout.EndHorizontal();
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#if TOUCH_REACT
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m_MaterialEditor.ShaderProperty(_VS_TOUCHBEND, new GUIContent("Use Vegetation Studio TouchBend"));
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if (showHelpBending) EditorGUILayout.HelpBox("Utilize Vegetation Studio's TouchBendSystem", MessageType.None);
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if (_VS_TOUCHBEND.floatValue == 1)
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{
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m_MaterialEditor.ShaderProperty(_BendingTint, _BendingTint.displayName);
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if (showHelpBending) EditorGUILayout.HelpBox("Darken the grass where it is bending", MessageType.None);
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}
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else
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#endif
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{
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m_MaterialEditor.ShaderProperty(_BendingInfluence, _BendingInfluence.displayName);
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if (showHelpBending) EditorGUILayout.HelpBox("Determines how much influence the FoliageBender script has on the object", MessageType.None);
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}
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EditorGUILayout.Space();
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}
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void LocateWindController()
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{
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//Debug.Log("Searching scene for WindController script");
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windController = GameObject.FindObjectOfType<WindController>();
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hasWindController = (windController) ? true : false;
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}
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void DoHeightmapArea()
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{
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EditorGUILayout.BeginHorizontal();
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showHelpHeightmap = GUILayout.Toggle(showHelpHeightmap, "?", "Button", GUILayout.Width(25f)); GUILayout.Label("Heightmap", EditorStyles.boldLabel);
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EditorGUILayout.EndHorizontal();
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#if UNITY_5_5_OR_NEWER
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if(!hasPigmentMap)
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{
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EditorGUILayout.HelpBox("No height map was found, please add the PigmentMapGenerator script to your terrain to enable these features", MessageType.Warning);
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_HeightmapInfluence.floatValue = 0;
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EditorGUI.BeginDisabledGroup(true);
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}
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#endif
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if (showHelpHeightmap) EditorGUILayout.HelpBox("The heightmap is generated through the PigmentMapGenerator script on your terrain", MessageType.None);
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m_MaterialEditor.ShaderProperty(_HeightmapInfluence, "Influence");
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if (showHelpHeightmap) EditorGUILayout.HelpBox("Determines the influence the heightmap has on the object", MessageType.None);
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m_MaterialEditor.ShaderProperty(_MinHeight, _MinHeight.displayName);
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if (showHelpHeightmap) EditorGUILayout.HelpBox("Minimum grass height", MessageType.None);
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m_MaterialEditor.ShaderProperty(_MaxHeight, _MaxHeight.displayName);
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if (showHelpHeightmap) EditorGUILayout.HelpBox("Maximum grass height", MessageType.None);
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EditorGUILayout.Space();
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#if UNITY_5_5_OR_NEWER
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if (!hasPigmentMap)
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{
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EditorGUI.EndDisabledGroup();
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}
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#endif
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}
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void DoPigmentMapArea()
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{
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EditorGUILayout.BeginHorizontal();
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showHelpPigmentmap = GUILayout.Toggle(showHelpPigmentmap, "?", "Button", GUILayout.Width(25f)); GUILayout.Label("Pigment map", EditorStyles.boldLabel);
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EditorGUILayout.EndHorizontal();
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#if UNITY_5_5_OR_NEWER
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if(!hasPigmentMap)
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{
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EditorGUILayout.HelpBox("No pigment map was found, please add the PigmentMapGenerator script to your terrain to enable these features", MessageType.Warning);
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_PigmentMapInfluence.floatValue = 0;
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EditorGUI.BeginDisabledGroup(true);
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}
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#endif
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if (showHelpPigmentmap) EditorGUILayout.HelpBox("The pigment map is generated through the PigmentMapGenerator script on your terrain. It colors the grass by the terrain's color.", MessageType.None);
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m_MaterialEditor.ShaderProperty(_PigmentMapInfluence, "Influence");
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if (showHelpPigmentmap) EditorGUILayout.HelpBox("Determines how much the object should be colored through the pigment map", MessageType.None);
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m_MaterialEditor.ShaderProperty(_PigmentMapHeight, "Height");
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if (showHelpPigmentmap) EditorGUILayout.HelpBox("With this parameter you can choose to only color the base of the grass", MessageType.None);
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EditorGUILayout.Space();
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if (showHelpPigmentmap) EditorGUILayout.HelpBox("If your grass is completely white, bring the Influence parameter to 0. Or add the PigmentmapGenerator script to your terrain.", MessageType.Info);
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#if UNITY_5_4 && !UNITY_5_5_OR_NEWER
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if (showHelpPigmentmap) EditorGUILayout.HelpBox("In versions older than Unity 5.5, it is possible for your grass to still be colored by the last pigment map generated", MessageType.Info);
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#endif
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EditorGUILayout.Space();
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#if UNITY_5_5_OR_NEWER
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if (!hasPigmentMap)
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{
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EditorGUI.EndDisabledGroup();
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}
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#endif
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}
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public void FindProperties(MaterialProperty[] props)
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{
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//Rendering
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_MaskClipValue = FindProperty("_Cutoff", props);
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//Main maps
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_MainTex = FindProperty("_MainTex", props);
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_BumpMap = FindProperty("_BumpMap", props);
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//Color
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_ColorTop = FindProperty("_ColorTop", props);
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_ColorBottom = FindProperty("_ColorBottom", props);
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_ColorVariation = FindProperty("_ColorVariation", props);
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_AmbientOcclusion = FindProperty("_AmbientOcclusion", props);
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_TransmissionSize = FindProperty("_TransmissionSize", props);
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_TransmissionAmount = FindProperty("_TransmissionAmount", props);
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//Animation
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_MaxWindStrength = FindProperty("_MaxWindStrength", props);
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_WindSwinging = FindProperty("_WindSwinging", props);
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_WindAmplitudeMultiplier = FindProperty("_WindAmplitudeMultiplier", props);
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_BendingInfluence = FindProperty("_BendingInfluence", props);
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#if TOUCH_REACT
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//TouchBend
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_VS_TOUCHBEND = FindProperty("_VS_TOUCHBEND", props);
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_BendingTint = FindProperty("_BendingTint", props);
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#endif
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//Heightmap
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_HeightmapInfluence = FindProperty("_HeightmapInfluence", props);
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_MinHeight = FindProperty("_MinHeight", props);
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_MaxHeight = FindProperty("_MaxHeight", props);
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//Pigment map
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_PigmentMapInfluence = FindProperty("_PigmentMapInfluence", props);
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_PigmentMapHeight = FindProperty("_PigmentMapHeight", props);
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}
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}
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}
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