fix cutscenes loading for Web version

src/core.h

@@ -719,6 +719,7 @@ namespace Core {
             delete[] noiseData;
         }
 
+        perlinTex = NULL;
         if (support.tex3D) {
             Stream::cacheRead(PERLIN_TEX_NAME, readPerlinAsync);
         }

src/inventory.h

@@ -681,6 +681,9 @@ struct Inventory {
     }
 
     void init(bool playLogo, bool playVideo) {
+        active    = false;
+        phaseRing = 0.0f;
+
         this->playLogo  = playLogo;
         this->playVideo = playVideo;
 

src/level.h

@@ -1536,6 +1536,13 @@ struct Level : IGame {
             }
         }
 
+        if (type != Shader::DEFAULT && !Core::perlinTex) {
+            type = Shader::DEFAULT;
+            if (level.version & TR::VER_TR1) {
+                return;
+            }
+        }
+
         Core::Pass pass = Core::pass;
         mat4 mView = Core::mView;
         mat4 mProj = Core::mProj;