Update glTF2Exporter.cpp

code/glTF2Exporter.cpp

@@ -973,16 +973,15 @@ inline void ExtractTranslationSampler(Asset& asset, std::string& animId, Ref<Buf
         return;
     }
 
-    const vec3 kZeros = {0, 0, 0};
     std::vector<float> times(numKeyframes);
-    std::vector<vec3> values(numKeyframes, kZeros);
+    std::vector<vec3> values(numKeyframes * 3);
     for (unsigned int i = 0; i < numKeyframes; ++i) {
         const aiVectorKey& key = nodeChannel->mPositionKeys[i];
         // mTime is measured in ticks, but GLTF time is measured in seconds, so convert.
         times[i] = static_cast<float>(key.mTime / ticksPerSecond);
-        values[i][0] = key.mValue.x;
-        values[i][1] = key.mValue.y;
-        values[i][2] = key.mValue.z;
+        values[i * 3][0] = key.mValue.x;
+        values[i * 3][1] = key.mValue.y;
+        values[i * 3][2] = key.mValue.z;
     }
 
     sampler.input = GetSamplerInputRef(asset, animId, buffer, times);
@@ -997,16 +996,15 @@ inline void ExtractScaleSampler(Asset& asset, std::string& animId, Ref<Buffer>&
         return;
     }
 
-    const vec3 kZeros = {0, 0, 0};
     std::vector<float> times(numKeyframes);
-    std::vector<vec3> values(numKeyframes, kZeros);
+    std::vector<vec3> values(numKeyframes * 3);
     for (unsigned int i = 0; i < numKeyframes; ++i) {
         const aiVectorKey& key = nodeChannel->mScalingKeys[i];
         // mTime is measured in ticks, but GLTF time is measured in seconds, so convert.
         times[i] = static_cast<float>(key.mTime / ticksPerSecond);
-        values[i][0] = key.mValue.x;
-        values[i][1] = key.mValue.y;
-        values[i][2] = key.mValue.z;
+        values[i * 3][0] = key.mValue.x;
+        values[i * 3][1] = key.mValue.y;
+        values[i * 3][2] = key.mValue.z;
     }
 
     sampler.input = GetSamplerInputRef(asset, animId, buffer, times);
@@ -1021,17 +1019,16 @@ inline void ExtractRotationSampler(Asset& asset, std::string& animId, Ref<Buffer
         return;
     }
 
-    const vec4 kZeros = {0, 0, 0, 0};
     std::vector<float> times(numKeyframes);
-    std::vector<vec4> values(numKeyframes, kZeros);
+    std::vector<vec4> values(numKeyframes * 4);
     for (unsigned int i = 0; i < numKeyframes; ++i) {
         const aiQuatKey& key = nodeChannel->mRotationKeys[i];
         // mTime is measured in ticks, but GLTF time is measured in seconds, so convert.
         times[i] = static_cast<float>(key.mTime / ticksPerSecond);
-        values[i][0] = key.mValue.x;
-        values[i][1] = key.mValue.y;
-        values[i][2] = key.mValue.z;
-        values[i][3] = key.mValue.w;
+        values[i * 4][0] = key.mValue.x;
+        values[i * 4][1] = key.mValue.y;
+        values[i * 4][2] = key.mValue.z;
+        values[i * 4][3] = key.mValue.w;
     }
 
     sampler.input = GetSamplerInputRef(asset, animId, buffer, times);