ShaderGUI, Property naming

Added first iteration of shader gui for the unlit TMP3D shader
Renamed some shader keywords for better reflecting their usage

Editor/Ikaroon.TMP3D.Editor.asmdef

@@ -0,0 +1,19 @@
+{
+    "name": "Ikaroon.TMP3D.Editor",
+    "rootNamespace": "",
+    "references": [
+        "GUID:6546d7765b4165b40850b3667f981c26",
+        "GUID:6055be8ebefd69e48b49212b09b47b2f"
+    ],
+    "includePlatforms": [
+        "Editor"
+    ],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false,
+    "overrideReferences": false,
+    "precompiledReferences": [],
+    "autoReferenced": true,
+    "defineConstraints": [],
+    "versionDefines": [],
+    "noEngineReferences": false
+}

Editor/Scripts/TMP3D_UnlitShaderGUI.cs

@@ -0,0 +1,155 @@
+using UnityEngine;
+using UnityEditor;
+using TMPro.EditorUtilities;
+using TMPro;
+
+namespace Ikaroon.TMP3DEditor
+{
+	public class TMP3D_UnlitShaderGUI : TMP_BaseShaderGUI
+	{
+		public enum VolumeMode
+		{
+			Surface,
+			Full
+		}
+
+		static ShaderFeature s_OutlineFeature;
+
+		static bool s_Face = true;
+		static bool s_Outline = true;
+		static bool s_Raymarch = true;
+
+		const string c_volumeModeSurface = "_VOLUMEMODE_SURFACE";
+		const string c_volumeModeFull = "_VOLUMEMODE_FULL";
+
+		static TMP3D_UnlitShaderGUI()
+		{
+			s_OutlineFeature = new ShaderFeature()
+			{
+				undoLabel = "Outline",
+				keywords = new[] { "OUTLINE_ON" }
+			};
+		}
+
+		VolumeMode GetVolumeMode(Material material)
+		{
+			if (material.IsKeywordEnabled(c_volumeModeSurface))
+				return VolumeMode.Surface;
+
+			if (material.IsKeywordEnabled(c_volumeModeFull))
+				return VolumeMode.Full;
+
+			material.EnableKeyword(c_volumeModeSurface);
+			return VolumeMode.Surface;
+		}
+
+		protected override void DoGUI()
+		{
+			s_Face = BeginPanel("Face", s_Face);
+			if (s_Face)
+			{
+				DoFacePanel();
+			}
+
+			EndPanel();
+
+			s_Outline = BeginPanel("Outline", s_OutlineFeature, s_Outline);
+			if (s_Outline)
+			{
+				DoOutlinePanel();
+			}
+
+			EndPanel();
+
+			s_Raymarch = BeginPanel("Raymarch", s_Raymarch);
+			if (s_Raymarch)
+			{
+				DoRaymarchPanel();
+			}
+
+			EndPanel();
+
+			s_DebugExtended = BeginPanel("Debug Settings", s_DebugExtended);
+			if (s_DebugExtended)
+			{
+				DoDebugPanel();
+			}
+
+			EndPanel();
+		}
+
+		void DoFacePanel()
+		{
+			EditorGUI.indentLevel += 1;
+
+			DoColor("_FaceColor", "Color");
+
+			EditorGUI.indentLevel -= 1;
+			EditorGUILayout.Space();
+		}
+
+		void DoOutlinePanel()
+		{
+			EditorGUI.indentLevel += 1;
+			DoColor("_OutlineColor", "Color");
+			DoSlider("_OutlineWidth", "Thickness");
+
+			EditorGUI.indentLevel -= 1;
+			EditorGUILayout.Space();
+		}
+
+		void DoRaymarchPanel()
+		{
+			EditorGUI.indentLevel += 1;
+
+			var mode = GetVolumeMode(m_Material);
+			var targetMode = (VolumeMode)EditorGUILayout.EnumPopup(new GUIContent("Volume Mode"), mode);
+			if (targetMode != mode)
+			{
+				switch (targetMode)
+				{
+					case VolumeMode.Surface:
+						m_Material.EnableKeyword(c_volumeModeSurface);
+						m_Material.DisableKeyword(c_volumeModeFull);
+						break;
+					case VolumeMode.Full:
+						m_Material.EnableKeyword(c_volumeModeFull);
+						m_Material.DisableKeyword(c_volumeModeSurface);
+						break;
+				}
+			}
+
+			DoSlider("_RaymarchMinStep", "Min Step");
+
+			EditorGUI.indentLevel -= 1;
+			EditorGUILayout.Space();
+		}
+
+		void DoDebugPanel()
+		{
+			EditorGUI.indentLevel += 1;
+			DoTexture2D("_MainTex", "Font Atlas");
+			DoFloat("_GradientScale", "Gradient Scale");
+			DoFloat("_TextureWidth", "Texture Width");
+			DoFloat("_TextureHeight", "Texture Height");
+			EditorGUILayout.Space();
+			DoFloat("_ScaleX", "Scale X");
+			DoFloat("_ScaleY", "Scale Y");
+
+			DoSlider("_PerspectiveFilter", "Perspective Filter");
+			EditorGUILayout.Space();
+			DoFloat("_VertexOffsetX", "Offset X");
+			DoFloat("_VertexOffsetY", "Offset Y");
+
+			EditorGUILayout.Space();
+
+			EditorGUI.BeginDisabledGroup(true);
+			DoFloat("_ScaleRatioA", "Scale Ratio A");
+			DoFloat("_ScaleRatioB", "Scale Ratio B");
+			DoFloat("_ScaleRatioC", "Scale Ratio C");
+			EditorGUI.EndDisabledGroup();
+			EditorGUI.indentLevel -= 1;
+			EditorGUILayout.Space();
+		}
+	}
+}