Moved material editing from component window to asset editor

- EditorContentManager now returns null if asset wasn't found (instead of crashing) - FixUp asset identifier when dragging from asset browser - Lock current asset in properties editor
2026-09-05 13:01:52 +00:00 · 2023-01-08 20:31:43 +01:00
parent d3d284256c
commit 2324ae852d
9 changed files with 394 additions and 143 deletions
@@ -5,11 +5,34 @@ using System.Collections;
 using System.IO;
 using GlitchyEngine;
 using GlitchyEngine.Renderer;
+using ImGui;
+using GlitchyEngine.Math;

 namespace GlitchyEditor.Assets;

 class MaterialAssetPropertiesEditor : AssetPropertiesEditor
 {
+	mixin DropAssetTarget<T>() where T : Asset
+	{
+		Asset asset = null;
+
+		if (ImGui.BeginDragDropTarget())
+		{
+			ImGui.Payload* payload = ImGui.AcceptDragDropPayload("CONTENT_BROWSER_ITEM");
+			
+			if (payload != null)
+			{
+				StringView fullpath = .((char8*)payload.Data, (int)payload.DataSize);
+
+				asset = Content.LoadAsset<Asset>(fullpath);
+			}
+
+			ImGui.EndDragDropTarget();
+		}
+
+		asset
+	}
+
 	public this(AssetFile asset) : base(asset)
 	{

@@ -17,7 +40,146 @@ class MaterialAssetPropertiesEditor : AssetPropertiesEditor

 	public override void ShowEditor()
 	{
+		Material material = Asset.LoadedAsset as Material;

+		if (material == null)
+			return;
+		
+		Effect effect = material?.Effect;
+
+		if (effect == null)
+			return;
+
+		ShowTextures(material, effect);
+
+		ShowVariables(material, effect);
+	}
+
+	private void ShowTextures(Material material, Effect effect)
+	{
+		for (let texture in effect.Textures)
+		{
+			ImGui.Button(texture.key);
+
+			if (ImGui.BeginDragDropTarget())
+			{
+				ImGui.Payload* payload = ImGui.AcceptDragDropPayload("CONTENT_BROWSER_ITEM");
+
+				if (payload != null)
+				{
+					StringView path = .((char8*)payload.Data, (int)payload.DataSize);
+
+					using (Texture2D newTexture = Content.LoadAsset<Texture2D>(path))//new Texture2D(path, true))
+					{
+						newTexture.SamplerState = SamplerStateManager.AnisotropicWrap;
+						material.SetTexture(texture.key, newTexture);
+					}
+				}
+
+				ImGui.EndDragDropTarget();
+			}
+		}
+	}
+
+	private void ShowVariables(Material material, Effect effect)
+	{
+		bool TryGetValue(Dictionary<String, Variant> parameters, String name, out Variant value)
+		{
+			if (parameters.TryGetValue(name, let param))
+			{
+				value = param;
+				return true;
+			}
+
+			value = ?;
+
+			return false;
+		}
+
+		for (let (name, arguments) in effect.[Friend]_variableDescriptions)
+		{
+			let variable = effect.Variables[name];
+			
+			bool hasPreviewName = TryGetValue(arguments, "Preview", var previewName);
+
+			StringView displayName = hasPreviewName ? previewName.Get<String>() : name;
+			
+			bool hasPreviewType = TryGetValue(arguments, "Type", var previewType);
+
+			if (hasPreviewType && previewType.Get<String>() == "Color")
+			{
+				Log.EngineLogger.AssertDebug(variable.Type == .Float && variable.Rows == 1);
+
+				if (variable.Columns == 3)
+				{
+					material.GetVariable<Vector3>(variable.Name, var value);
+
+					value = (Vector3)ColorRGB.LinearToSRGB((ColorRGB)value);
+
+					if (ImGui.ColorEdit3(displayName.Ptr, *(float[3]*)&value))
+					{
+						value = (Vector3)ColorRGB.SRgbToLinear((ColorRGB)value);
+						material.SetVariable(variable.Name, value);
+					}
+				}
+				else if (variable.Columns == 4)
+				{
+					material.GetVariable<Vector4>(variable.Name, var value);
+					
+					value = (Vector4)ColorRGBA.LinearToSRGB((ColorRGBA)value);
+
+					if (ImGui.ColorEdit4(displayName.Ptr, *(float[4]*)&value))
+					{
+						value = (Vector4)ColorRGBA.SRgbToLinear((ColorRGBA)value);
+						material.SetVariable(variable.Name, value);
+					}
+				}
+			}
+			else if (variable.Type == .Float && variable.Rows == 1)
+			{
+				bool hasMin = TryGetValue(arguments, "Min", var min);
+				bool hasMax = TryGetValue(arguments, "Max", var max);
+
+				for (int r < variable.Rows)
+				{
+					switch (variable.Columns)
+					{
+					case 1:
+						material.GetVariable<float>(variable.Name, var value);
+						
+						float[1] minV = hasMin ? min.Get<float[1]>() : .(float.MinValue);
+						float[1] maxV = hasMax ? max.Get<float[1]>() : .(float.MaxValue);
+
+						if (ImGui.EditVector<1>(displayName, ref *(float[1]*)&value, .(), 0.1f, 100.0f, minV, maxV))
+							material.SetVariable(variable.Name, value);
+					case 2:
+						material.GetVariable<Vector2>(variable.Name, var value);
+						
+						Vector2 minV = hasMin ? min.Get<Vector2>() : .(float.MinValue);
+						Vector2 maxV = hasMax ? max.Get<Vector2>() : .(float.MaxValue);
+						
+						if (ImGui.EditVector2(displayName, ref value, .Zero, 0.1f, 100.0f, minV, maxV))
+							material.SetVariable(variable.Name, value);
+					case 3:
+						material.GetVariable<Vector3>(variable.Name, var value);
+						
+						Vector3 minV = hasMin ? min.Get<Vector3>() : .(float.MinValue);
+						Vector3 maxV = hasMax ? max.Get<Vector3>() : .(float.MaxValue);
+
+						if (ImGui.EditVector3(displayName, ref value, .Zero, 0.1f, 100.0f, minV, maxV))
+							material.SetVariable(variable.Name, value);
+					case 4:
+						material.GetVariable<Vector4>(variable.Name, var value);
+						
+						Vector4 minV = hasMin ? min.Get<Vector4>() : .(float.MinValue);
+						Vector4 maxV = hasMax ? max.Get<Vector4>() : .(float.MaxValue);
+
+						if (ImGui.EditVector4(displayName, ref value, .Zero, 0.1f, 100.0f, minV, maxV))
+							material.SetVariable(variable.Name, value);
+					}
+				}
+			}
+		}
 	}

 	public static AssetPropertiesEditor Factory(AssetFile assetFile)