Differences

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--- 0.8.3:models [2022/04/08 13:31] – [Loading a model from file into an existing TGorillaModel instance] admin
+++ 0.8.3:models [2022/04/25 11:26] (current) – [Instancing by TModelDef] admin
@@ Line 21: / Line 21: @@
 | OBJ         | ✔             | ✔                 | ✘          | ✘      | ✘       | ✘      | ✘       | ✘      |           | only ascii format|
 | STL         | ✔             |✘                   | ✘          | ✘     | ✘        | ✘      | ✘       | ✔     | 1.0       | ascii and binary format, Standard + Solidworks-Format|
-| FBX         | ✔             | ✔                 | ✘          | ✘      | ✘       | ✘      | ✘       | ✘      | 7.1 - 7.5 | only binary (v0.8.3.1931+). Animation import for 7.3-7.4 validated, 7.5 not working properly yet|
+| FBX         | ✔             | ✔                 | ✔          | ✘      | ✘       | ✘      | ✘       | ✘      | 7.1 - 7.5 | only binary (v0.8.3.1931+). Animation import for 7.3-7.4 validated, 7.5 not working properly yet|
 | X3D         | ✔             | ✔                 | ✔         | ✘      | ✘       | ✘      | ✘       | ✘      |           | deprecated |
 | glTF        | ✔             |✔                  | ✘          | ✘      | ✘       | ✘      | ✘       | ✘      | 2.0       | only glTF json format, not glb|
@@ Line 144: / Line 144: @@
 **WARNING***: Your IDE memory is limited to 3GB, which can be exceeded very fast due to cached data by the IDE and model data with textures.
-===== Loading a new model from file at runtime =====
+===== Loading a model from at runtime =====
+Besides the user-friendly loading at runtime, we of course support the model loading from file or stream.
+You can also take advantage of the designtime mechanisms at runtime.
+==== Loading a new model from file ====
 Creating a model instance at runtime is very easy and often very helpful for creating dynamically loaded scenes.
@@ Line 179: / Line 186: @@
 You also can ignore the AssetPckg parameter currently. We will explain assets management in the [[assetsmanager|AssetsManager]] section.
-===== Loading a model from at runtime =====
-==== Loading a model from file into an existing TGorillaModel instance ====
+==== Loading into an existing TGorillaModel instance ====
 In case you've dragged a TGorillaModel component onto your viewport, you can load the model by the following method.
@@ Line 228: / Line 235: @@
 Only then the format loader is able to load the specific file.
+==== Loading a model from package ====
+To adopt the behaviour used in the IDE at design time, you can load model data from assets package
+also at runtime by the following method.
+<file pascal Form1.pas>
+uses
+  Gorilla.DefTypes,
+  Gorilla.G3D.Loader,
+  Gorilla.DAE.Loader,
+  Gorilla.OBJ.Loader,
+  Gorilla.STL.Loader,
+  Gorilla.FBX.Loader,
+  Gorilla.GLTF.Loader,
+  Gorilla.Babylon.Loader,
+  Gorilla.PLY.Loader,
+  Gorilla.SKP.Loader,
+  Gorilla.AssetsManager,
+  Gorilla.Model;
+[...]
+var FAssetsManager : TGorillaAssetsManager;
+    FPackage : TGorillaAssetsPackage;
+    FModel : TGorillaModel;
+// in our form (TForm1) we added a field named "FModel"
+procedure TForm1.FormCreate(Sender: TObject);
+begin
+  // setup the assets manager and load an existing package from file
+  FAssetsManager := TGorillaAssetsManager.Create(Self);
+  FPackage := FAssetsManager.LoadPackageFromFile('C:\Temp\mypackage.zip');
+  FPackage.DisplayName := 'MyPackage';
+  // prepare the model for loading from package
+  FModel := TGorillaModel.Create(GorillaViewport1);
+  FModel.Parent := GorillaViewport1;
+  // start linking to assets manager like at designtime
+  FModel.AssetsManager := FAssetsManager;
+  FModel.PackageName := 'MyPackage';
+  FModel.Source := 'myfile.dae';
+end;
+</file>
+==== Loading a model from source ====
+This is another way to load model data from file at runtime.
+The difference to //LoadFromFile()// and //LoadNewModelFromFile()// is, that it will store model data in the BinaryData property too.
+<file pascal Form1.pas>
+uses
+  Gorilla.DefTypes,
+  Gorilla.G3D.Loader,
+  Gorilla.DAE.Loader,
+  Gorilla.OBJ.Loader,
+  Gorilla.STL.Loader,
+  Gorilla.FBX.Loader,
+  Gorilla.GLTF.Loader,
+  Gorilla.Babylon.Loader,
+  Gorilla.PLY.Loader,
+  Gorilla.SKP.Loader,
+  Gorilla.AssetsManager,
+  Gorilla.Model;
+[...]
+var FModel : TGorillaModel;
+// in our form (TForm1) we added a field named "FModel"
+procedure TForm1.FormCreate(Sender: TObject);
+begin
+  // prepare the model for loading from package
+  FModel := TGorillaModel.Create(GorillaViewport1);
+  FModel.Parent := GorillaViewport1;
+  FModel.Source := 'c:\Temp\myfile.dae';
+end;
+</file>
 ===== Instancing / Model duplication =====
+==== Instanced Rendering ====
+Since 0.8.3.2265 instanced rendering of the same mesh for x-times was implemented.
+Use this method to render for example grass or trees. It is not recommended to use it for animated charaters,
+because they would be rendered the same (with the same animation frame).
+You can simply setup instanced rendering in your TGorillaModel or TGorillaMesh object.
+<file pascal>
+/// we create 4 instances in a row
+GorillaModel1.AddInstance(TMatrix3D.CreateTranslation(Point3D(-10, 0, 0)));
+GorillaModel1.AddInstance(TMatrix3D.CreateTranslation(Point3D(-5, 0, 0)));
+GorillaModel1.AddInstance(TMatrix3D.CreateTranslation(Point3D(5, 0, 0)));
+GorillaModel1.AddInstance(TMatrix3D.CreateTranslation(Point3D(10, 0, 0)));
+/// afterwards we can modify a specific instance
+var LTransf : TMatrix3D;
+LTransf := TMatrix3D.CreateScaling(Point3D(2, 2, 2));
+LTransf := LTransf * TMatrix3D.CreateRotationY(DegToRad(90));
+LTransf := LTransf * TMatrix3D.CreateScaling(Point3D(2, 2, 2));
+GorillaModel1.Instances[2] := LTransf;
+</file>
+==== Instancing by template (TModelDef) ====
 Since 0.8.3.1966+ we've refactored the way to instanciate models. The previous method was incomplete in handling animated models.
 In the following example we show how to load a complex animated model with multiple meshes and animations.
-We will load up a template, which will be used for duplication. The template itself will not be rendered in our example, but of course that's possible too.
+We will load up a template (TModelDef), which will be used for duplication. The template (TModelDef) itself will not be rendered in our example, but of course that's possible too.
 Each duplicated model will run a different animation to show instanciating is still fast, but allows to handle models differently.