Method ProcessAnimationChannel

code/PostProcessing/FindInvalidDataProcess.cpp:273–319

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// ------------------------------------------------------------------------------------------------
void FindInvalidDataProcess::ProcessAnimationChannel(aiNodeAnim *anim) {
    ai_assert(nullptr != anim);
    if (anim->mNumPositionKeys == 0 && anim->mNumRotationKeys == 0 && anim->mNumScalingKeys == 0) {
        ASSIMP_LOG_ERROR("Invalid node anuimation instance detected.");

        return;
    }

    // Check whether all values in a tracks are identical - in this case
    // we can remove al keys except one.
    // POSITIONS
    int i = 0;
    if (anim->mNumPositionKeys > 1 && AllIdentical(anim->mPositionKeys, anim->mNumPositionKeys, configEpsilon)) {
        aiVectorKey v = anim->mPositionKeys[0];

        // Reallocate ... we need just ONE element, it makes no sense to reuse the array
        delete[] anim->mPositionKeys;
        anim->mPositionKeys = new aiVectorKey[anim->mNumPositionKeys = 1];
        anim->mPositionKeys[0] = v;
        i = 1;
    }

    // ROTATIONS
    if (anim->mNumRotationKeys > 1 && AllIdentical(anim->mRotationKeys, anim->mNumRotationKeys, configEpsilon)) {
        aiQuatKey v = anim->mRotationKeys[0];

        // Reallocate ... we need just ONE element, it makes no sense to reuse the array
        delete[] anim->mRotationKeys;
        anim->mRotationKeys = new aiQuatKey[anim->mNumRotationKeys = 1];
        anim->mRotationKeys[0] = v;
        i = 1;
    }

    // SCALINGS
    if (anim->mNumScalingKeys > 1 && AllIdentical(anim->mScalingKeys, anim->mNumScalingKeys, configEpsilon)) {
        aiVectorKey v = anim->mScalingKeys[0];

        // Reallocate ... we need just ONE element, it makes no sense to reuse the array
        delete[] anim->mScalingKeys;
        anim->mScalingKeys = new aiVectorKey[anim->mNumScalingKeys = 1];
        anim->mScalingKeys[0] = v;
        i = 1;
    }
    if (1 == i) {
        ASSIMP_LOG_WARN("Simplified dummy tracks with just one key");
    }
}

// ------------------------------------------------------------------------------------------------
// Search a mesh for invalid contents