[ue4] Cleaned up base example. More to come. Fixed crash bug in material reevaluation in renderer component

spine-ue4/Content/Test/skeleton.atlas

@@ -1,26 +0,0 @@
-
-skeleton.png
-size: 275,302
-format: RGBA8888
-filter: Linear,Linear
-repeat: none
-head
-  rotate: false
-  xy: 2, 2
-  size: 271, 298
-  orig: 271, 298
-  offset: 0, 0
-  index: -1
-
-skeleton2.png
-size: 496,156
-format: RGBA8888
-filter: Linear,Linear
-repeat: none
-hoverboard_board
-  rotate: false
-  xy: 2, 2
-  size: 492, 152
-  orig: 492, 152
-  offset: 0, 0
-  index: -1

spine-ue4/Content/Test/skeleton.json

@@ -1,40 +0,0 @@
-{
-"skeleton": { "hash": "MTiZgk2LS7dpxtEZykSk3BMgpHM", "spine": "3.5.43", "width": 821.13, "height": 902.82, "images": "./images/" },
-"bones": [
-	{ "name": "root" },
-	{ "name": "bone", "parent": "root", "x": -155.24, "y": 59.79 },
-	{ "name": "bone2", "parent": "root", "x": 231.1, "y": 40.28 },
-	{ "name": "bone3", "parent": "root", "x": 243.36, "y": -301.04 },
-	{ "name": "bone4", "parent": "root", "x": -170.12, "y": -308.37 },
-	{ "name": "bone5", "parent": "root", "x": -196.27, "y": -618.03 }
-],
-"slots": [
-	{ "name": "head", "bone": "bone", "attachment": "head" },
-	{ "name": "head2", "bone": "bone2", "attachment": "head", "blend": "additive" },
-	{ "name": "head3", "bone": "bone3", "attachment": "head", "blend": "screen" },
-	{ "name": "head4", "bone": "bone4", "attachment": "head", "blend": "multiply" },
-	{ "name": "hoverboard_board", "bone": "bone5", "attachment": "hoverboard_board" }
-],
-"skins": {
-	"default": {
-		"head": {
-			"head": { "width": 271, "height": 298 }
-		},
-		"head2": {
-			"head": { "y": 1.27, "width": 271, "height": 298 }
-		},
-		"head3": {
-			"head": { "width": 271, "height": 298 }
-		},
-		"head4": {
-			"head": { "y": -0.86, "width": 271, "height": 298 }
-		},
-		"hoverboard_board": {
-			"hoverboard_board": { "width": 492, "height": 152 }
-		}
-	}
-},
-"animations": {
-	"animation": {}
-}
-}

spine-ue4/Plugins/SpinePlugin/Source/SpinePlugin/Private/SpineSkeletonRendererComponent.cpp

@@ -118,7 +118,7 @@ void USpineSkeletonRendererComponent::TickComponent (float DeltaTime, ELevelTick
 					UTexture* oldTexture = nullptr;
 					
 					UMaterialInstanceDynamic* current = atlasNormalBlendMaterials[i];
-					if(!current->GetTextureParameterValue(TextureParameterName, oldTexture) || oldTexture != texture) {
+					if(!current || !current->GetTextureParameterValue(TextureParameterName, oldTexture) || oldTexture != texture) {
 						UMaterialInstanceDynamic* material = UMaterialInstanceDynamic::Create(NormalBlendMaterial, owner);
 						material->SetTextureParameterValue(TextureParameterName, texture);
 						atlasNormalBlendMaterials[i] = material;
@@ -126,7 +126,7 @@ void USpineSkeletonRendererComponent::TickComponent (float DeltaTime, ELevelTick
 					pageToNormalBlendMaterial.Add(currPage, atlasNormalBlendMaterials[i]);
 					
 					current = atlasAdditiveBlendMaterials[i];
-					if(!current->GetTextureParameterValue(TextureParameterName, oldTexture) || oldTexture != texture) {
+					if(!current || !current->GetTextureParameterValue(TextureParameterName, oldTexture) || oldTexture != texture) {
 						UMaterialInstanceDynamic* material = UMaterialInstanceDynamic::Create(AdditiveBlendMaterial, owner);
 						material->SetTextureParameterValue(TextureParameterName, texture);
 						atlasAdditiveBlendMaterials[i] = material;
@@ -134,7 +134,7 @@ void USpineSkeletonRendererComponent::TickComponent (float DeltaTime, ELevelTick
 					pageToAdditiveBlendMaterial.Add(currPage, atlasAdditiveBlendMaterials[i]);
 					
 					current = atlasMultiplyBlendMaterials[i];
-					if(!current->GetTextureParameterValue(TextureParameterName, oldTexture) || oldTexture != texture) {
+					if(!current || !current->GetTextureParameterValue(TextureParameterName, oldTexture) || oldTexture != texture) {
 						UMaterialInstanceDynamic* material = UMaterialInstanceDynamic::Create(MultiplyBlendMaterial, owner);
 						material->SetTextureParameterValue(TextureParameterName, texture);
 						atlasMultiplyBlendMaterials[i] = material;
@@ -142,7 +142,7 @@ void USpineSkeletonRendererComponent::TickComponent (float DeltaTime, ELevelTick
 					pageToMultiplyBlendMaterial.Add(currPage, atlasMultiplyBlendMaterials[i]);
 					
 					current = atlasScreenBlendMaterials[i];
-					if(!current->GetTextureParameterValue(TextureParameterName, oldTexture) || oldTexture != texture) {
+					if(!current || !current->GetTextureParameterValue(TextureParameterName, oldTexture) || oldTexture != texture) {
 						UMaterialInstanceDynamic* material = UMaterialInstanceDynamic::Create(ScreenBlendMaterial, owner);
 						material->SetTextureParameterValue(TextureParameterName, texture);
 						atlasScreenBlendMaterials[i] = material;